t, national ’ ” -. .> ,. ,. :

59
NATIONAL ‘ADVISORY COlkiMITtCEE - _ ,_.,! ,_ ,,., .T,’ _-. .>_,. ,. _ ....... :_<- ,. , -_,. .,.. ,.-. .,j ., _,.~., ..“. ._. ,^..*.‘ ..- . _ ., FOR- AER’bNAUTICiS : : ‘- ; _.. ,,,,/ L/ --.,- , ,. / >/ ,- . ,, REPORT 1251 I’ _ ,, STREh ANALYSI# OF .CIRCUiAR SEMIMONOCtijUti I’ CYLINDER% WITH &CQUTS , I ., ‘ , ,’ . By HABVEY G. McCOMB, Jr. .’ .) -, , , , ,. , - ;. ‘1 $1 .’ I. - -\ ,- : I, I, . t. L. , ,’ 1955 !,, t, - - ? , j ,,‘ i, . I % rb by the Superin(endcnt Of Document& U. 19. Gpvernment Printing 05~9. Washington 25. D. C. Yearly spbaatption, $105, foreign, $11 https://ntrs.nasa.gov/search.jsp?R=19930092252 2020-01-18T09:32:18+00:00Z

Upload: others

Post on 30-Nov-2019

4 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: T, NATIONAL ’ ” -. .> ,. ,. :

NATIONAL ‘ADVISORY COlkiMITtCEE - _ ,_.,! ,_ ,,., .T,’ ” _-. .>_,. ,. _....... :_<- ,. , -_,. .,.. ,.-. ., j ., _,.~., ..“. ._. ,^. .*.‘ ..- . _ ., FOR- AER’bNAUTICiS : : ‘- ; _.. ,,,,/

L/ --.,- ‘, ,. / >/ ,- ‘. ,, .

;

, REPORT 1251 I’

_

,, STREh ANALYSI# OF .CIRCUiAR SEMIMONOCtijUti I’ CYLINDER% WITH &CQUTS

, I ., ‘,

,’ ‘. By HABVEY G. McCOMB, Jr. .’ .) -, ,

, , ,.

‘, - ;. ‘1 $1

.’ I. -

-\

,- :

I,

I, ‘.

t.

L. ,

,’

1955 !,, t, - - ? ” , j

,,‘i,

‘.

I

% rb by the Superin(endcnt Of Document& U. 19. Gpvernment Printing 05~9. Washington 25. D. C. Yearly spbaatption, $105, foreign, $11

https://ntrs.nasa.gov/search.jsp?R=19930092252 2020-01-18T09:32:18+00:00Z

Page 2: T, NATIONAL ’ ” -. .> ,. ,. :

REPORT 1251

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE

CYLINDERS WITH CUTOUTS

By HARVEY G. McCOMB, Jr.

Langley Aeronautical Laboratory Langley Field, Va.

I

Page 3: T, NATIONAL ’ ” -. .> ,. ,. :

National Advisory Committee for Aeronautics Headquarters, 1512 H Street NW., Washington bci, D. C.

Created by act of Congress approved March 3, 1915, for the supervision and direction of the scientific study of the problems of flight (U. S. Code, title 50, sec. 151). Its membership was increased from 12 to 15 by act approved March 2,1929, and to 17 by act approved May 25,194s. The members are appointed by the President, and serve as such without compensation.

JEROME C. HUNSAKER, SC. D., Massachusetts Institute of Technology, Chairman

LEONARD CARMICHAEL, PH. D., Secretary, Smithsonian Institution, Vice Chairman P

JOSEPH P. ADAMS, LL. B., ViceChairman, Civil Aeronautics Board. DONALD L. PUTT, Lieutenant General, cnited States Air Force, AI,LEN V. ASTIN, PH. D., Director, National Bureau of Standards. Deputy Chief of Staff (Development). PRESTON R. BASSETT, M. A., Vice President, Sperry Rand Corp. DONALD A. QUARLES, D. Eng., Secretary of the Air Force. DETLEV W. BRONK, PH. D., President, Rockefeller Institute for ARTHUR E. RATMOSD, SC. D., Vice President-Engineering,

Medical Research. Douglas Aircraft Co., Inc. THOMAS S. COMBS, Vice Admiral, United States Navy, Deputy

Chief of Naval Operations (Air). FREDERICK C. CRAWFORD, SC. D., Chairman of the Board,

Thompson Products, Inc.

FRANCIS W. REICHELDERFER, SC. D., Chief, United States Weather Bureau.

LOUIS S. ROTHSCHILD, PH. B., Z7nder Secretary of Commerce for Transportation.

RALPH S. DAMON, D. Eng., President, Trans World Airlines, Inc. JAMES H. DOOLITTLE, SC. D., Vice President, Shell Oil Co. CARL J. PFIN~STAG, Rear Admiral, United States Navy, Assistant

Chief for Field Activities, Bureau of Aeronautics.

NATHaN F. TKISIS~, General, I-nited States Air Force, Chief of Staff.

HUGH L. DRYDEN, PH. D., Director

JOHN TV. CROWLEY, JR., B. S., Associate Director for Research

JOHN F. VICTORY, LL. D., Executive Secrelary

EDWARD H. CHAMBERLIN, Executive Ofleer

HENRY J. E. REID, D. Eng., Director, Langley Aeronautical Laboratory, Langley Field, Va.

SMITH J. DEFRANCE, D. Eng., Director, Ames Aeronautical Laboratory, Moffett Field, Calif.

EDWARD R. SHARP, SC. D., Director, Lewis Flight Propulsion Laboratory, Cleveland, Ohio

WAI,TER C. WILLIAMS, B. S., Chief, High-Speed Flight Station, Edwards, Calif.

II

Page 4: T, NATIONAL ’ ” -. .> ,. ,. :

ERRATA

NACA REPORT 1251

7!Yl!RESS ANALYSIS OF CIPCUIXR SEMIMONOCOQUE cYLINDERsw1THcuTOuTs

By Harvey G. McComb, Jr.

1955

Page 6, column 1, line 2: The beginning of the sentence starting on line 2 should be reworded to avoid the misinterpretation introduced by the word l(ssme." The revised sentence should read as follows:

Because of symmetry, similar equations result when equation (1) is written for stringer j = 1 at ring i = 0 or for stringer j=O atrings i=O or i=l.

Page 23, column 1, line 3: Add the symbol j before the equal sign in the lower limit of the summation appearing in this equation.

.-

Page 5: T, NATIONAL ’ ” -. .> ,. ,. :

REPORT 1251

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS l

By HARVEY G. McCO~~B, Jr.

SUMMARY

A method is presented for analyzing the stresses about cutouts in circular semi,monocoque cylinders with flexible rings. The method involves the use of so-called perturbation stress distri- butions which are superposed on the stress distribution that would exist in the structure with no cutout in such a way as to give the eflects of a cutout. The method can be used for any loading case .for which the structure without the cutout can be analyzed nnd is su$iciently versatile to account fwr stringer and shear reilljorcement about the cutout.

a method of analysis which can be used with more general loading conclitions and with either shear or stringer rein- forcement about the cutout.

INTRODUCTION

An airplane fuselage usually has openings or cutouts for entrance doors, cargo doors, windows, and many other pur-

In reference 6 the stress perturbation technique is applied to the analysis of stresses about cutouts in flat sheet-stringer panels uncler axial load. Three basic unit perturbation solutions were used as tools in this method of analysis. In part I of this report the analogous perturbation approach is described for the stress analysis of circular semimonocoque cylinders with cutouts. The three perturbation-solution tools for circular semimonocoque cylinders analogous to those for the fiat sheet-stringer panels of reference 6 are developed in part II of this report.

The presence of such openings may result in a con- poses. siderable redistribution of stress in the structure. Some knowledge of this stress redistribution is desirable in the structural clcsign of fuselages near cutouts.

A c47rct~ive cross-sectional area of a stringer A* cross-sect8ional area of additional portion of a

r~inforcecl stringer &=3BP- 1 +cos ncs

SYMBOLS

A large portion of the structure of many fuselages can hc represented, approximately, b\- a circular semimonocoque Aiif,(i) cylinder, that is, a thin-walled circular cylinder stiffened by ad= ~ --- --

)7 6 (n 2 2)

stringers (axial stiffening members) and rings (circumferential 2L sin 2

stiffening mcJmbers). Some previous investigations relating to the problem of stress analysis of cylinclrical semimonocoque shells with cutouts wcrc reported in references 1 to 4. One 3,=3B6’+2(1-cos 176)

limitation common t.o all of these analyses is that the flexi- b arc distance between stringers, R6 bility of the rings or circumferential-stiffening members is neglected. In reference 5, Cicala discussed this limita.tion

b,{=-- Aii.fn(i)

as well as certain other limitations in some of the previous 21, sin \! (712 2)

investigations and introduced the idea that the effect of a cutout can be reproduced by superposing certain pcrturba- tion stress states on the stresses which would occur in the shell without a cutout.

The problem discussed by Cicala in reference 5 is that of a 1 cutout in a circular semimonocoque cylinder which is long in Dr”(Tm.+77)2[(rm+n)L--ll comparison to the length of the cutout. The analysis of reference 5 is somewhat limited because it can be usecl only for loading conclitions which produce stringer stresses longitu- dinally antisymmetric about the center line of the cutout (for example, torsion), and it cannot take into consideration the effects of coaming stringer reinforcement. The present report is an extension of the approach of Cicala and presents

& . ‘.’ ’ _ coefficient in trigonometric series for I&, E Young’s modulus of elasticity FU tangential force on ring i uniformly distributed

between stringer j and stringer j+ 1 fdi) coefficient in trigonometric series for stringer

loads G shear modulus of elasticity

1 Fupersedos NAP-4 TN 3188, 1954 and NACA TN 3200, 1954 by Harvey Q. McComb, Jr., nnd NACA TN 3460, 1955 by HZWVCY a. McComb, Jr. and EmmCt F. LOW, Jr.

1

Page 6: T, NATIONAL ’ ” -. .> ,. ,. :

2 REPORT 125 l-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

l&(n,~)= 2 (--l)‘D,, sin (rm+n)b r=--m effective moment of inertia of a ring cross section longitudinal indices, indicating rings and bays has the value 1 when h is an integer and has the

value 0 when h is not an integer circumferential indices, indicating stringers and

panel rows integers distance bet,ween rings bending moment in ring i appliecl moment and torque, respectively (see

fig. 5) total number of stringers in cylincler, mZ3 index of terms in a trigonometric series external concentrated force in the longitudinal

direction applied to a stringer at its intersec- tion with a ring, lb

stringer load in st,ringer .i at ring i basic stringer load in stringer .i at ring i load in stringer j at ring i due to a unit concen-

trated perturbation load on stringer 7 at ring t load in stringer j at ring i due to a unit sheal

pert,urbation load about shear panel (E,q) external shear force per unit length applied about

a shear panel, lb/in. shear flow in shear panel (i,j) basic shear flow in shear panel (id) shear flow in shear panel (i,j) due to a unit

concentrated perturbation load on stringer 9 at ring [

shear flow in shear panel (i,j) due to a unit shear perturbation load about shear panel &d

radius to middle surface of sheet external force in the longitudinal direction

uniformly distributed along that portion of a stringer which lies between adjacent rings, lb

r=--m

T(i,+) thrust in ring i t thickness of sheet t* thickness of aclditional port.ion of a reinforced

shear panel, that is, a, doubler plate t' thickness of all material carrying bending

stresses in cylinder if uniformly clistributed around perimeter, A/b

u total stress energy Wi,+) transverse shear in ring i CYl?Z,W?Z, arbibrary constants a3ntfl4n

. 3 B# I-- -

2 sin2 $ r,=-2+ Y

12cs, Ait second central difference in the i direction or

longitudinal direction, that is &g(i) =g(i+l) -2g(i) +g(i- 1)

6 central angle between stringers, 2?rlm 6 7s Kronecker delta; takes the value 1 when ~=s

and takes the value 0 when r # s ln= f e-tin Al n,hl quantities defined immediately following equa-

tion (24) 4 angular coordinate for rings

xn=; cos-’ [y -J(v>‘-yn2] (Dn>l)

=; CoSh-1 [y-dr+y-y;] (Dn<l)

+f cosll-’ p++J<+>‘-e]

BASIC ASSUMPTIONS

A structure of t,he type considered in this report, is shown in figure 1. It consists of a thin-walled circular cylinder stiRcnec1 by stringers in the longitudinal direction and by rings in the circumferential direction. The rings and stringers divide the thin-walled shell into rectangular panels which are called shear panels. The cutout is assumed to be rectangular-it removes an arbitrary number of shear panels and interrupts the corresponding stringers.

Some loading conditions which can be hancllecl w-ith this method of analysis a.re illustrabed in figure 1. Other loading conditions are permissible if the stress distribution in the cylinder without the cut,out is known.

A typical portion of the structure is shown in figure 2 with the index system used in this report to designate stringers, rings, bays, and panel rows. Sate that the intersection of

FIGURE l.-Circular semimonocoque cylinder with cutout.

Page 7: T, NATIONAL ’ ” -. .> ,. ,. :

-- -

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS

Ring i- 2 i-l / i+l i+2

FIGURE Z.--Portion of typical cylinder.

ring i and stringer j occurs at, the lower left,-hand corner of shear panel (;,j).

The analysis is based on the following assumptions regard- ing the properties of the st.ructure:

(a) The cylinder is long relat,ive to the length of the cutout. (b) The st,riugers are uniform and equally spaced around

the shell, and the sheet is of const8ant thickness. (c) The st,ringers carry only clircrt st,ress, and t.he sheet,

takes only shear stress which is constant within each shear panel; thus stringer stresses vary linearly between adjacent rings.

(d) The rings are uniform and have a finite bcncling stiff- ness in their own planes, but they do not restrain longitu- dinal displacements of the stringers. The bending of the rings is inestensional.

(e) The difference between the radius to t,he middle surface of the sheet and the raclius t,o the neutral axis of a ring is ncgligiblc.

(f) The structure is elastic and no buckling occurs.

I-ANALYSIS OF STRESSES ABOUT CUTOUTS BY A PERTURBATION LOAD TECHNIQUE PERTURBATION STRESS DISTRIBUTIONS

The tools for the method of analysis to be described are tbe stress dist,ributions due to three types of loads, called perturbation loads, applied to an infinitely long circular cylinder with no cutout. One perturbation load consists of a concentrated forc,e P imposed on one stringer of the shell at its intersection with a ring, the force acting in the direction of the stringer. This load is illustrated in figure 3 (a) and is called the concentrated perturbation load. A second type, illustrated in figure 3 (b), is called the distributed perturba- tion load and consists of a force S uniformly distributed along the portion of one stringer which extends between two adjacent rings, the force acting in the clirection of the stringer. The third type, shown in figure 3 (c), is called the shear

3

perturbat.ion load and consists of uniformly distributed forces per unit length (3 applied along the stringers and rings that border one shear panel of the shell, the forces acting in such a way as to cause pure shear iu that panel.

For each of t,hc three perturbation loads, formulas are dcvelopecl in part II of tbis report which give stringer loads in every stringer at each ring and shear flows in each &car panel of the shc41. BJ- use of these formulas, tables of coeffi- cients can be c~omputcd which give stringer loads a,ntl shear flows in the neighborhood of each perturbation load due to a uriit magnitude of that load. Such tables for a c$ntlc~ having 36 striugers and various values of the structural parameters B and (’ arc presentecl as tables 1 to 30. These tables were calrulatcd on an IBM Card-Programmed Elec- t,rotiic Calculator. The application of these tables is not limited to cylinders with 36 stringers. In general, thr total stringer area can simply be reclistributed into 36 fict.itious stringers. The values of the parameters B and C are not changed by such a redistribution of stringer area. Then the tables can be thought of as presenting (a) the load which is t,aBen by all of the normal-stress-carrying material up to 5” on either side of the location of a fictitious stringer and (b) the shear flows at points in the sheet halfway between fic- titious stringers.

Part (a) of each t#able contains the values of p,j and qtjL clue to a concentrated perturbation load P=l on st,ringer j=O at ring station i=O. Part (b) contains the values of pij and pijL due to a distributed perturbation loacl of total magnitude S=l on stringer j=O between rings i=O and i=l. Part (c) contains the values of pij/L and qiJ due to a shear perturbation load per unit length of magnitude Q=l about shear panel (0,O). The positive senses of the pe$r- bation loads are the senses shown in figure 3; stringer loads are assumed positive in tension, and shear flow is positive when an element of the sheet is loaded by shears which act

Page 8: T, NATIONAL ’ ” -. .> ,. ,. :

REPORT 125 l-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

/uh b---’

-I

0

Panel raw

Ring

,.S

Bay / / -I 0 I /

/Q / / Bay Bay / /

-I -I 0 0 I I / / / / I /

/ ;

(a) Concentrated. (b) Distributed.

(c) Shear.

FIG VRE 3--Pcrt.urbntiou loads.

in-the positive sense of t,he shear perturbation load. The solutions for arbitrary locations of the perturbation loads are readily obtained from the t,ables b\- means of changes of indices.

The application of these perturbation loads and the stress distributions caused by them in the stress analysis of cir- cular semimonocoque cylinders with cutouts is discussed in the following section. The perturbation solutions are exact only for infinite1.y long cylinders. However, in the solution of a cutout problem, t,he perturbation loads are applied in self-equilibrating groups in order not to disturb the overall equilibrium of the structure; t,herefore, t,he stresses due t,o

the perturbation loads decay rapidly in the longitudinal di- rection. Consequently, the application of perturbation stress distributions for an infinitely long cylinder to a cyl- inder df finite length is justified if the vicinity of application of the perturbat#ion loads is far from the ends of the cylinder.

METHOD OF ANALYSIS

STRUCTURE WITH NO REINFORCEMENT ABOUT CUTOUT

Application of perturbation loads.-Consider, first, a st,ructure like that shown in figure 1 which has no reinforce- ment about the cutout. The stress clistribution in such a shell can be thought of as a superposition of the stresses which would exist in the structure without a cutout and perturbation stress distributions which arise because of the cutout. The structure without a cutout is called herein the basic structure. The. stress distribution which would exist in this structure is called herein t.he basic stress distribution. In the present, report the basic stress distribut,ion is assumed to be known. Then the problem of analyzing a structure with a cutout consists of the determination of t,hc perturba- tion stress clistributions to be superposed on the basic stresses in such a manner as to annihilate the effects of that portion of the basic structure which lies within the boundaries of the cutout. Finding the proper magnitudes of these pertur- bation stresses involves the solution of a system of simulta- neous algebraic. equations.

At the cutout boundary in the structure wit,h the cutout, two conditions must be satisfied: (a) the stringer load must be zero at points where a stringer is interrupted by the cut- out and (b) no external shear forces may act on portions of stringers and rings which border the cutout. By superposing concentrated and shear perturbation loads on the basic structure, the resultant stresses can be made to sntisf\- these conditions.

The method of analysis is as follows: (1) Find the stress distribution for the basic structure,

that is, the cylinder without a cutoutS. (2) Place perturbation loads on the basic structure in the

following manner: At each point where a stringer would be interrupted by the cutout, place a concentrated perturba- tion load; and, about each shear panel which would be re- moved by the cutout,, place a shear perturbation load. For the case of a cutout removing three shear panels and in- terrupting two stringers, t,hcse perturbation loads are shawl in figure 4.

Bay

I I -I 0 Ring

FIGURE 4.-Application of perturbation loads.

Page 9: T, NATIONAL ’ ” -. .> ,. ,. :

\j - . ..---

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 5

(3) With the use of the tables of coefficients, write a set of simultaneous algebraic equations which state the following conditions:

(a) At the points where a stringer is to be interrupted by the cutout boundary, the resultant stringer load must vanish when the boundary is approached from the structure outside of the cutout. This resultant stringer load is com- posed of the basic stringer load plus the stringer load due-to all the perturbation loads.

(b) In each shear panel which is to be removed by the cutout, the basic shear flow plus the shear flow due to all the perturbation loads must be equal to the shear perturba- tion load applied to the portions of stringers and rings which border that given panel. Thus, the shear flow exerted by the shear panel on the portions of stringers and rings bor- dering it will exactly cancel the shear perturbation load applied to those same portions of stringers and rings.

(4) Solve the syst,em of equations from step (3) for the magnitudes of the perturbation loads, and superpose the stress distributions due to these loads on the basic distribu- tion. This procedure yields the stress distribution in the structure with cutout.

Upon completion of thcsc four steps, the magnitudes of the perturbation loads on the basic structure have been adjusted so that simultaneous removal of that portion of the basic structure which lies within the cutout boundary and the perturbation loads themselves would not disturb the remain- der of the structure. The perturbation loads arc in equilib- rium with the portion of the basic structure lying within the cutout bounclary. The stresses outside the cutout boundary in the basic structure subjected to the actual estcrnal loading together with the perturbation loads arc precisely t’bc same as the stresses in the structure with the cutout subjected to the external loading alone.

Conditions 3 (a) and 3 (b) can be explcssctl mathematirally by the following equations, respectively:

The uuknowns are PCs, the magnitucle of the concentrated perturbation load on stringer 7 at ring .$, and (Jc,,, the magni- tude of the shear perturbation load about shear panel (.$,q). The coefficients pil(t,s) and qij(<,v) are founcl in part (a) of the tables and the coefficients pJ.$,o] and aij[E,o] are found in part (c). The summations in each case are extenclecl over the appropriate perturbation loads. Equation (1) is written for each i,j where a stringer is to be interrupted by the cutout and refers in each case to the stringer load as the point i,j is approached from within that portion of the structure lying outside the cutout boundary. Equation (2) is written for each i,j where a shear panel is to be removed by the cutout. The form of equations (1) and (2) is the same regardless of whether the rings in the cylinder are considered rigid or flexible.

This method of analysis may be applied to a cylincler hav- ing a cutout more than 1 bay long, but, in such a situation, t.he effects of removing ring segments from the region within

the cutout boundary are neglected. In the rigid-ring case, such effects do not exist if the cut rings remain effectively rigid; in the flexible-ring case, the effe& of cutting a ring could, in principle, be taken into account through the intro- duction of additional types of perturbation loads. It is possible that even with flexible rings the effects of cutting a ring are negligible in certain cases, but this would have to be verified by further .inuestigation.

Sample calculation.-In order to illustrate the method of calculation, the cylinder shown in figure 5 is analyzed. A cutout which removes three shear panels and interrupts two

- stringers is located in the central bay. The properties of the cylinder are taken as follows:

m=36

A=0.260 sq in.

I-?=15 in.

L=12 in.

t=0.051 in.

b=R 2=2.62 in. 3 6

tf=".260=o 0999 2.62 ' -

For the purposes of this example suppose the rings are very heavy and can be consiclered rigicl in bending in their own planes. From these properties the structural paramet)crs B ancl C are calculated. The table corresponding to the values of H and C closest to the computed values will be used. If E is taken as 10.6X106 psi and G is taken as 4X106 psi, the parameters R and (7 arc

Suppose that the cylinder is loaded with the bending moment Ml and torque Ad* shown in figure 5. The per- turbation load system for this problem is shown in figure 4. The concentrated perturbation loads are doubly symmetric about the cutout. The shear perturbation loads are sym- metric about panel row j=--0. Let P represent the magni- tude of each of the concentrated perturbation loads. Let Q0 represent the magnitucle of the shear perturbation load about shear panel (0,O); ancl let Q1 represent the magnitude of the shear perturbation loacls about shear panels (0,l) and (0,-l). I -

Equations (1) and (2) are now written for this example by use of the tables of coefficients for B=8 and C=O. Equation (1) for the stringer load condition in stringer j=l at, ring i=l is written with the aid of tables 1 (a) and 1 (c) as follows:

-0.500~~+0.0476P+0.0895P+0.1192Q,L-0.1192QoL- O.O374Q,L+&=O

I - .- - --~ -

Page 10: T, NATIONAL ’ ” -. .> ,. ,. :

6 REPORT 125 l-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

I

FIGURE 5.-Circular cylinder with cutout used in sample calculation.

where pll is the basic stringer lo&d in stringer j= 1 at stat.ion i= I. Because of symmetry the same equation results when equation (1) is written for stringer j=l at ring i=O or for stringer j=O at rings i=O or i=l. Equation (2) for shear panel (0,O) is

-0.2262;+0.2262;-0.2262;+0.2262;+0.6986Q,- 2

2(0.0629)Q,+G,=Q,

where QoO is the basic shear flow in shear panel (0,O). For shear panels (0,l) and (0,-l), equation (2) gives

-0.2262;+0.2262;-0.1368~+0.1368;+0.69860,- , 1

0.0629Qo+O.O119Q~+~o~=Q~ where &, is the basic shear flow in shear panel (0,l). These three equations in the three u~d~~~omns P, Qo, and Q1 become

0.36291’+0.1192Q01r0.0818Q~L=j%~ 0.:~014QoL+0.1258QIl;=q,,L

0.0629Q,,L+0.2895Q1L='oll, I

(3)

For simplicity, let il/r,=~~~=lOO,OOO lb-in. In the present example, the basic stress distribution can be found from ele- mentary beam and torsion theories which give jj11=:370 pounds and &o=&,=70.8 lb/in. When these constants are introduced into the system of equations (3), the solution is

P=1,020 lb

Q,L= 1,750 lb

Q1L=2,560 lb

Stringer loads and shear flows in the neighborhood of the cutout are obtained by superposing the effects of these perturbation loacls on the basic stress distribution. For example, with the use of tables 1 (a) and 1 (c) the stringer load at the intersection of ring i=O and stringer j=2 is

given by

P(0.0895+0.0511)+(3,L(0.1192+0.0125)+(3,L(0.0374)+~,~

=545+3na

The basic stringer load ijo2 equals 358 pounds. Therefore, the loacl in stringer .j=2 at ring i=O is 903 pounds. Other stringer loacls at ring i=O are shown in figure 6(a). The shear flow in shenr panel (- 1,l) is giveu by

f [P(0.2262+0.1368+0.0044-0.0:360)+ --

Q,L(O.l357-0.0159) +Q,,L(O.O097)]+~-,,,=55.1+?-,,,

The basic shear flow G-,,, equals 70.8 lb/in. Thus, the shear flow in palIe (-1,l) is 125.9 lb/in. Other shear flows in bay i= - 1 are shown in figure 6 (b), and in figure 6 (c) are presented shear flows in the net section (bay i=O).

STRUCTURE WITH REINFORCEMENT ABOUT CUTOUT

Shear reinforcement.-The method of analysis is easily extended to problems where shear panels are reinforced in the neighborhood of the cutout,. Suppose that some of the shear panels around the cutout are reinforced by the ad- dition of a certain thickness of sheet (i. e., a doubler plate). Then, the procedure consists of adding shear perturbation loads to each of these shear patlels in the basic structure. On the doubler plates is placed the same shear perturbation load except. with opposite sign. Then, for each reinforced s1iea.r panel, an equation is written which states the require- ment that the shear stress in the shear panel of the basic structure shall equal the shear stress in the doubler plate used to reinforce that panel. When this condition is sat,is- fied, the loaded doubler plates can conceptually be inserted into the basic st,ructure without disturbing continuity. The shear perturbation loads on the doubler plates cancel the shear perturbation loads on the basic structure.

As an example, consider for simplicity the cylinder shown in figure 5 loacled only with bending moment M,. The most highly loaded shear panels are those indicated by the vertical

Page 11: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 7

0 Theory, rigid rings ----Basic (elementary

theory)

140

E

- Theory, rigid rings

120 ----Basic (elementory theory)

t

Edge of cutout

0 ‘\,O

‘\O .\ p.

140 -Theory, rigid rings ----Basic (elementory e-

120 theory) I!

;-Edge of cutout

Stringers.,,:. .;.

‘\I., *. (c)

I I I I I I I, I“1 ‘i I I I I I 1 ,

90 180 Distance around cylinder, deg

(a) Stringer loads at ring bordering cutout (ring i=O) (b) Shear flow in bay adjacent to cutout (bay i= - 1).

(c) Shear flow in net section (bay i=O).

FIGURE G.-Results of sample calculation.

doubler plates of thickness t* are shown as free bodies in figure 8. The shear perturbation loads applied to them are of the same magnitude as those applied to the basic portions of the reinforced shear panels, but are opposite in’kign. The conditions that must be satisfied are:

(a) The stringer load is zero in stringers j=O and j= 1 at rings i=O and i=l as each of these points is approached from the structure outside of the cutout.

(b) The shear flow in shear panels (0,-l), (O,O), and (0,l) cancels any shear perturbation load applied about these panels. (In this example, no shear is developed in the shear panels of bay i=O and this condition is automaticnlly satisfied.)

(c) The shear stress in each of the shear panels (l,l), (1,-l), (-l,l), and (-l?-1) in the basic structure must equal the shear stress in the corresponding doubler plate.

Condition (a), which must hold where stringers j=O and j=l are interrupted by the cutout, is expressed by a single equation because of symmetry:

(-0.5000+0.0476+0.0895)P+(-0.1192-0.0374+ 0.0067-O.O118)QL+&,=O

where I’ and Q are the magnitudes of the concentrated and shear perturbation loads, respectively, and FII is the basic stringer load. The condition in shear panel (1,l) that the shear stress in the basic portion of the sheet equals the shear stress in the doubler plate (condition (c)) is expressed as

[ (-0.2262-0.1:368-0.0044+0.0330) ;+

(0.6986-0.0119-0.0068+0.0052)~~ 1 += -(3 f

whcrc t is the thickness of the basic portion of the shear panel and t* is the thickness of the doubler plate. Because of symmetry, thr same equation expresses condition (c) for the other three reinforced shear panels. These equations become

0.3629P+0.1617QL=jll

-0.33141’+ (

;!+0.6851) QL=O

For a given value of t/t* and for a given magnitude of Ml (SO

that j&l can bc computed), this system of equations can be solved for P and &, and the stress distributions clue to these perturbation loads can then be superposed on the basic stress distribution to give the stresses about the cutout.

Stringer reinforcement.-The method of analysis is also easily extended to problems where stringers are reinforced in the neighborhood of the cutout. For example, suppose the coaming stringers in the structure shown in figure 5 have reinforcement of constant cross-sect,ional area extending 1 bay on either side of the cutout. This coaming-stringer re- inforcement is illustratecl in figure 9. Let the area of the added reinforcing portion of a coaming stringer be A* so that the total area of the reinforced portion of the stringer is A+A*. It is assumed that the stringer load is abruptly transmitt,ed into the added portion of the reinforced coam- ing stringer so that the stress is always given by the force divided by the cross-sectional area.

hatching in figure 7. Suppose, now, that, these shear panels are reinforced by the addition of plat,es of thickness t* to the skin of thickness t so that the total thickness in these shear panels is t+t*. The perturbation load system to be placed on the basic structure is shown in figure 8. The four

359282-56-2 I. -

Page 12: T, NATIONAL ’ ” -. .> ,. ,. :

8 REPORT 1251-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

Section A-A

Section A-A

FIGURE 7.-Cutout with shear reinforcement.

I I I Panel I I I rOW I I I I I 1 I I I I I I I I I I I I I I I

I 0 I IS

-A

FIGURE 8.-Perturbation load system for a problem of shear reinforcement.

Page 13: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 9

I Section A-A

FIGUSE 9.-Cut.out with reinforced coaming stringers.

Again for simplicitp suppose that thr cylinder is loaded only by the bending moment M, shown in figure 5. The perturbation 10~1 system to be placed on the basic struc- ture is shown in figure 10. The adcled reinforcing portions of the coaming stringers are shown as free bodies in figure 10 with the proper perturbat#ion loads applied to them. The conditions that must be satisfied are:

(a) The stringer load is zero in stringers ,j=O and j=l at rings i=O and i=l as each of these points is approached from the struct.ure outside of the cutout.

(b) The shear flow in shear panels (0,-l), (O,O), and (0,l) cancels any shear perturbation load applied about these shear panels. (This condition is automatically satisfied in this example.)

(c) The stress in the basic portions of the coaming stringers j= -1 and j=2 equals t’he stress in the addecl reinforcing portions at rings i=O and i= 1.

(d) In t,he basic portions of the coaming stringers j= - 1 and j=2 at rings i= -1 and i=2, when these points are approached from the side which is reinforcecl, the stress equals the stress at the ends of the added reinforcing portions of the coaming stringers.

Because of the symmetry in this structure, only three equations are required. The unknowns are P, and Pz, the magnitudes of the concentrated perturbation loads, and S, the magnitude of the distributed perturbation loads. Con- dition (a), which must hold where stringer j= 1 is interrupted by the cutout., is expressed with the use of tables l(a) and 1 (b) as follows:

(-0.5000+0.0476+0.0895)P,+(-0.0895-0.0511-0.0490- O.O475)P,+(-0.0727-0.0340-0.0629-O.O499)S+&=O

The condition t’1~a.t the stringer stress in the basic portion of stringer j=2 equals the stress in the added reinforcing por- tion at ring i=l (condition (c)) is expressed as [(0.0895+0.0511)~,+(-0.0476-0.0330-0.0565-0.0402)~,

+(-0.1924-0.0195-0.0567-O.O379)S+&] ;=(P,+S)$

Finally, the condition that the stress in the basic portion of stringer .j=2, as the ring i=2 is approached from the rein- forced sick, equals the stress at the ends of the adcled rein- forcing member (condition (cl)) is expressed as follows:

[(-- 0.5000 -0.0459 - 0.0394) P, + (0.1924 + 0.0195 - 0.0499

-O.O:398)S+ (-0.0895-0.0511+0.0490+0.0475)P1$-j&2] ;=$

These thrrc equations become

-O.l406P,+ $+0.1773 ( > (

P,+ $+0.3065 S=j%z >

o.0441p1+ (

$*+0.5853 Py--o.1222s=jrJ~~ >

When A/A* is known and the magnitude of the external moment M, is known so that the basic stringer loads Ijll, &, and pza can be computed, this system of equations can be solved for the unknowns P,, P,, and S. Superposition of the stresses due to these perturbation loads on the basic stress distribution yields the stresses about the cutout.

In this example the basic stringer loads do not vary in the longitudinal direction, and the concentrated and dis- tributed perturbation loads can be applied in pairs, equal in magnitude and opposite in sign, as shown in figure 10. However, in cases where the basic stringer loads do vary longitudinally, for example, when the shell is loaded in shear and bending, the concentrated and distributed perturbation loads may not occur in equal and opposite pairs. Further- more, additional distributed perturbation loads may be nec- essary on the coaming stringers in bay i=O. If such is the case, the stress conditions which were used in the example no longer provide a sufficient number of equations to determine the magnitudes of the perturbation loads. The required

Page 14: T, NATIONAL ’ ” -. .> ,. ,. :

10

+

REPORT 125 l-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS A

I Section A-A

Bay /

I fi -I 0 I

I I I I I I I I I I I I I I

I ! I ! I I I

I I I I I I I I I I I I

I I I I I

I I I I I I

-I 0 I 2 Ring

I I

8 I I I

I I 0 a \ 1 I , J

L -A FIGL-RE lo.-Perturbation load system for a problem of coaming-stringer reinforcement.

supplementary equations are found from the conditions of equilibrium obtained when the added reinforcing portions of the coaming stringers are considered as free bodies.

Comparison of results for reinforced and unreinforced structures.-Some calculated results for the problems of cutouts with reinforcement just discussed are compared with the results for the structure without reinforcement in the following tables:

,.

Stringer load, Ih, for-

Intersection of ring and , structure

Structure with : Structurr ,vitl, strinarr rcinforcrd

without rein- forcrment

warning shear win-

sty$y’;“, forcrmPnt, t*=t

501 758 507 422 331 422 ( 359 296 359 303 258 302 244 209

I 242 I

I Shear flow, lb/in., for-

Shear panel Structure with reinforced Structure with

without rein- coqina shear rcin-

sy$y forcement, t*=t . I

0 -28.1 -12.3

-5. fi -2. 5

The reinforced shear panels were assumed to have sheet twice as thick as the uniform sheet; the reinforced portions of the coaming stringers were taken to have twice the area of the uniform stringers. The applied bending momen! Ml was taken as 100,000 lb-in.

The following comparison is noted for these illustrative examples: In the case of coaming-stringer reinforcement, the maximum stringer load is increased, but. the maximum stringer stress is decreased (because stringer area is doubled), and the maximum shear flow is not appreciab1.v changed. In the case of shear reinforcement, the maximum shear flow is increased only slightl\- so that maximum shear stress is considerably reduced, and stringer loads are not appreciabl>- affected.

II-DERIVATION OF PERTURBATION SOLUTIONS ANALYTICAL APPROACH

Equations for the stress distributions arising from the three perturbation loads illustrated in figure 3 are derived in this part of the report. The perturbation solutions are obtained by use of the principle of minimum complementarp energy. This principle states that, among all possible stress distributions in the structure which satisfy equilibrium and the boundary conditions on stress, the distribution that most nearly satisfies compatibility is the one which minimizes the complementary energy ** where

Work done by surface stresses ?r*=Internal energy- acting through the prescribecl

> (4)

surface displacements

Page 15: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 11

Since disp1acement.s are not prescribed anywhere on the be solved for these trigonometric coefficients. The solution structure, the’ second term on the right-hand side of equation is then substituted back into the original expressions for (4) is omitted. The complementary energy becomes the stringer loads, shear flows, and ring moments to yield the internal energy or stress energy of the structure. desired distributions.

In writing the equation for the stress energy, the following factors are considered: the energy of axial distortion of the stringers, the shear energy in the sheet, and the bending energy of the rings in their own planes. Each of the pertur- bation loads is shown in its positive sense in figure 3. Stringer loads are taken as positive in tension. Shear flows are positive as shown in figure 11. Ring bending moments, shear, and thrusts are placed on the ring element in figure 11 in the positive sense. The stress energy in the structure can be expressecl as

For convenience in application, the significant equations. are collected in appendix A.

PERTURBATION LOAD SOLUTIONS CONCENTRATED PERTURBATION LOAD

Expression for stringer loads.-The concentrated per- turbation load is shown in figure 3 (a); let P represent the magnitude of this load. Since the structure is uniform and infinitely long, half of the load goes into the portion of the structure to the right of the ring where the load is applied (ring i=O), and half goes to the left of this ring. Therefore, it can be seen from figure 3 (a) that, because of symmetry, pi12 + 1

where the integration over the length of a stringer between adjacent rings has been carried out.

In the anal\-sis to follow, st,ringer loads are cspresscd in the form of a finite trigonometric series. Then, by using the equations of st,atics, t,he shear flows and ring bending moments arc written in terms of the coefficients of this trig- onometric series. The expression for stress energy, equation (5), is minimized wit81i respect to t,lie coefficients of the trig- onomct,ric series for stringer loads; t#hen, the expressions for the stringer loads, shear flows, and ring bending moment’s are substituted int,o the resulting equation. This process yields a fourth-order finite-differrnce equation which can

Pi?=--p-&j (i2 1)

Qij=P-i-i.j (i&O)

I

(6)

M(i,4)= -&q-i,+) (i10)

Consider the right half of the structure, including the ring at i=O. The concentrated perturbation load gives risch to stringer loads which are circumferentially symmetric about stringerj=O (see fig. 3 (a)). Thus t,he stringer load distribu- tion can be reprcscntcd by a series of the form

,,I ?,I - 1 -i Or 2

pij=C j,(i) cos n.72 (7) n=o II, m-1

where the notation 2 Or Yi- c means that the summation is n=O

Detail of ring element

BOY i-l /

FIGURE Il.-Positive sense of quantities used in analysis.

t-l i

Page 16: T, NATIONAL ’ ” -. .> ,. ,. :

12 REPORT 1251-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

m-1 carried over n from n=O to n=T if m is even and to n=T

if m is odd. Evaluation of j,,(i), j1 (i), and jn(0) .-Suppose that equation

(7) is multiplied by cos ZjS and summed over-j from 0 to m- 1. This procedure yields

m-1 -7 or !q

m-1

C pij COS ljS= j=O

nGo jn (i) C COS njS COS 1jS j=O

The sum over j on the right-hand side is, for 0 sn 5; and

OSl& 2

77-l ~cosnj6cosljj6=0 (J#n> j=o

=T( n,;) 1 +hzo+~ (Z=n)

Thus the coefficients of the t,rigonometric series in equation (7) are

2 m-l -fn (i>= m

( 1+6,0+6~ m

’ 2 > C pij COS ILjS (8) j=O

It is desirable first of all to determine those values of j,(i) which can be found from consideration of the boundary con- ditions and of the overall equilibrium of the cylinder. Con- sider the equations of statics for the cylinder as a whole. Satisfaction of equilibrium in the longitudinal direction requires that the sum of the stringer loads at any ring station i must equal one-half of the applied load P. This condition is expressed as

For n=O, equation (8) gives

.foCS=+& mg Pi,=& (9)

Moment equilibrium gives two equations, one of which is aut(omatically satisfied because of the symmetry of the stringer load distribution around the cylinder. The other moment equation is

m-1 PR C pij R cosj~=~ j=O

For n= 1, equation (8) is

j,(i)=; ms pij cos js=; (10)

On substituting the values of fo(i) and j, (i) given in equations (9) and (lo), respectively, into equation (7), there results

Consider now the boundary condition at, ring i=O. The stringer loads here are

P POj=- 6Oj 2

and substitution of this expression into equation (8) yields

jn(O>= p m 1+6,0+6 (

~ ?) (Endg (12) ‘2

The equations of equilibrium and the boundary condition at i=O have been used to obtain certain of the coefficients of the trigonometric series for stringer loads. The remainder of the coefficients are found by use of the principle of min- imum complementary energy, and this is the next step in the solution.

Expressions for shear flows and ring bending moments.- In order to use the principle of minimum complementary energy, the shear flows and ring bending moments must be found in terms of the trigonometric coefficients jn(i). Shear flows are determined by the consideration of the equations of s-tatics of a portion of any stringer j between two adjacent rings i and i+ 1. The forces on this free boclv are shown in sketch (a) :

Sketch (a).

Equilibrium of these forces requires that

Pi+*.l-Pij+(Pij-qi.f-*)L=O (13)

Substitution of equation (11) int#o equation (13) yields

m or ?$A

Pij-Pi,j-I=+ 2 n12 [.fn(l:+l)-.fn(i)] COS 7lj6 (14)

In order to find pi?, replacej with a dummy incles k and sum both sides of this equation over k from k=l to k=j; that is, write

When the indicated summations over k have been carried out, the following equation is obtained:

1 mar 2 !$I! sin 11 j+k 6 I

Pu-~o=-~ nT2 [f,(i+l>-.f,(i)l [ ( > 2 sin 7

-- 2 1

Page 17: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 13

The term pi0 can be found from the condition that the total torque on the section is zero. The resulting expression for shear flows is

;,, !q

ZU” - nG fn(i+l>-jn(i)

2L sin y sin n j+i 6

( > (15)

Bending moments are caused in each rini by a tangential loading which develops because of the difference in shear flow in the sheet on either side of the ring. The tangential load on ring i has the value

; (Jr T!g

qtj-qi-1,j=- c Aii.fa(i> --sin n j+$ 6

( > (16) II==2 2L sin "2

In appendix B, this load is applied to a circular ring and the bending moment in the ring is derived. This procedure results in the following moment in ring i (see eq. (B9)) :

;,,--1 M(i, 4)=- C2 ‘2 &ifn(i)Hl(n, 4) (17)

n=2

where cos (rm+n)rP

H1(n’ ‘)=,=Zw (rm+n)“[(rm+,n)‘-l]

The sign convention for the moment is illustrated in figure 11; the convention for measuring the angle (b is shown in figure 12 (a).

Energy analysis.-The stringer loads, shear flows, and ring bending moments have now been expressed in terms of the coefficients .f, (i). The stringer loads are,given in equa- tion (1 l), the shear flows in equation (15), and the bending moments in equation (17). These equations are used in the minimization of the stress energy of the cylinder with respect to fn (9.

By virtue of the symmetry properties of this problem expressed in equations (6), the energy in the structure to the left of ring i=O is the same as the energy to the right of ring i=O. Thus, equation (5) becomes

252 J

‘2a R

i=l 0 ~fM2(i,4M

(a) (a) For concentrated and distributed perturbation loads.

(b)

(b) For shear perturbation load.

FIGURE 12.-Conventions for angular coordinate 4.

Page 18: T, NATIONAL ’ ” -. .> ,. ,. :

Note that &I(O,+) is identically zero because there is no A closed form of S, is presented in appendix C but the series difference in shear flow across ring i=O and, therefore, no form converges so rapidly that it is usually more convenient tangent,ial load acts on t)his ring. than the closed form for use in calculations.

Minimization of the stress energy with respect tofn(i) re- After substitution of the expressions for stringer loads, sults in the. following equation: shear flows, and ring moments into equation (18), the use

of these definite sums (19), (ZO), and (21), and definite integral (22) results in the following equations which express the condition of minimum stress energy:

14 REPORT 125 l-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

The coefficients .fo(i) and .fi(i) are lmown already for all

values of i, andf,(O) is known for 0 s;n 5;. Equation (18) 4

therefore needs only to be considered for iz 1 and n 22. The expressions for the stringer loads, shear flows, and ring bending moments are substituted into equation (18). Then the following definite sums are needed (these can be obt.ained by the procedure outlined in ref. 7) :

77-l C cos njS=O (O<n<m) (19) j=O

and for the integers n and I restrict,ed to the range 1 sn6;

and 1 $ Is $7

711-l C cos 1jS cos njli=O (l#n) j=O

=T (""/) (20) (zrll) t

and

‘gsin l(j+a) ( 2) 6sinn j+i 6=0 (I# n)

=; (‘+$E) (21) (lzn) I

The following definite integral, which is derived in appendix C, is a.lso needed:

s

2* Hl (n, 4) H* CL $1 a=0 Wn)

0 (22)

=s,* (l+an, ;) (Z=n)

where m s~=,=~~Drn2=,c (rm+n)4 ,(?in+n)‘-l,’

and where n and I are restricted to 25nsT and 25155. 4

For i=l,

.fn(.3)+2YJ,(2)+(2P,--l~f,(l)+2(Yn+l)f,(0)=0 (23a)

and, for i 2 2,

~fn(i+2)+2Y,,f,(~+1)+2p,f,(i)+2Y,,j,(i-l)+sf,,(i-2)=o (23b)

where

1-z Bs’ 2 n.6 sin’ -

Y,l=-2+ 2

12cs,

4+3 +8 sin’ -

Pn=3-t 12cs 2 n

Et’ X2 B=at;2

&Jz IL3

Solution of finite-difference equation-Equation (23b) is a fourth-order finite-diflermce equation with const,ant co- efficients. (Sate that the symbol i represents the index of the rings and ba~~ntl shoulcl not. be confused with the usual notation for 1 --I which never appears in this report.) Equat,ion (23b) corresponds exactly with equation (24) of reference 8. The general solution is presented on pages 23 to 26 of reference 8 and on pa,ges 28 a,nd 29 of reference 9. It may be writ,ten as

f,l(i)=(~e-icn)i[cr*,d,,(i)+a2,,A~,,(i)l+ (*etinJi [(~~,~‘~~,~(i)+~4,,A?,~(i)l (n22> (24)

where the upper sign is used when -y,<O and the lower sign when r,>O. The values of iI are as follows:

For D 11=

where

A1,(i)=cos ix, A?,(i) =sin ix,

Page 19: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 15

For D,<l,

where

n,,(i) =cosh ix,

n,,(i) =sinh ix,

For D,= 1, A*n= 1

&=i

In the inverse trigonometric and hyperbolic functions, the principal values are used. The argument tin of the exponen- tial function is given by the positive branch of

At a large longitudinal distance from the appliecl load, the stringer loads should approach the elementary distribution given by the first two terms of equation (11) ; consequently, for nZ2, Jn(i) approaches zero as i approaches infinity. The first term on the Eight-hand side of equation (24) satisfies this condition; however, the seconcl t.erm does not and, hence, must be omitted. The solutions, then, that are compatible with the boundary conditions at infinity are:

where Sn(i)=Tni [(Y,nA*.(i)+al.A*.(i)l (n2_2) (25)

<,,= *e-cl

Now the arbitrary constants aI, and aZn arc determined. The first, aI,, is obtained immediately. Substitution of i=O into equation (25) and use of equation (12) to evaluate fn(0) yields

Substitution of equations (26) and (25) into the boundary equation (23a) yields

e,,+qr +I) p a2n= k-k 8 2n “(‘+‘“n,~)

where

@,=C,3&,(3) +2-1,J,~hz(2) + (2&L-- l>i-n&n(l) (s= 1,2)

The solution for the concentrated perturbation load is now complete since the coefficients fn(i) are completely defined and may be substituted into equation (11) to give the stringer loads. The shear flows can be found from equation (15); however, once the st,ringer loads are known, it. is simpler to calculate the shear flows by the use of the equations of statics. Because of symmetry, the shear flows in shear

panels adjacent to stringer j=O are given by

qio= -qi, +-P*o--~+1.0

All the other shear flows can be found by. the use of equation (13). If desired, the moment distribution in the rings can be computed from equation (17) and the thrust and trans- verse shear in the rings can be found from the formulas given in appendix B.

DISTRIBUTED PERTURBATION LOAD

Expression for stringer loads.-The distributed perturba- tion load is shown in figure 3 (b) ; let S represent the magni- tude of the total force distributed along stringer j=O between rings i=O and i= 1. From figure 3 (b) it is seen that

p,= -p-*+,,j (i 2 1) (27a)

Qij’q-%.5 (i 2 1) (27b)

M(;,~)=-M--i+l,~) (i 2 1) (27~)

At ring i=l and to the right of this ring, the stringer loads can be represented by a trigonometric series of exactly the same form as equation (7)

except now iZ 1, and the coefficients fn(i) are different from those obtained for the preceding case of the concentrated load.

Evaluation ofjo andf, (;).-As in the preceding case, the first two coefficientsbfo(i) andf, (i) can be obtained from the equations of statics, and the results are the same as before. Equation (28) becomes

pi5=&+E cos jS+ g2 fit(i) cos njS (i_2 1) (29)

With the concentrated perturbation load, all the coefli- cients fR(0) were easily found because the stringer load clistribution at ring station i=O was known. Here no such distribution is known. In order to determine the boundary condition at bay i=O, the effect of the distributed perturba- tion load on the equilibrium of portions of stringers in this bay must be investigated.

Expressions for shear flows and ring bending moments.- Away from bay i=O the shear flows and ring bending mo- ments are of the same form as for the concentrated load. The following expression for the shear flows is obtained by use of equation (13):

f or !$I! zi5=- c

fn(ifl)-fn(i) .~ n=2

____ sin n j+i 6 (iB1) (30) 2L sin y ( >

350282-5C3

I

Page 20: T, NATIONAL ’ ” -. .> ,. ,. :

16 REPORT 1251-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

The ring bending moments are obtained in appendix B as

The applied force in bay i=O may be written as S&j. Con- sider, now, the equilibrium of a portion of any stringer j between ring i=O and ring i= 1. The forces on this free body are shown in shetch (b):

qOjL _ ,ASS, j

,-I /’

Substitution of the expression for stringer loads (equation (29)) and the trigonometric expansion for 6,,, (equation (33)) into the equilibrium equation (32) yields

m (Jr 7n-’ 12 2

!PJj-Btj--l=~ g2 [S&--2fn(l)] cos njS

In order to find poj, this equation can be treated in the same manner as equation (14); that is, replace j by a dummy index k, sum from k=l to k=j, and then use the condition that the total torque on a cross section in bay i=O must be zero. This procedure results in the following expression for t.he shear flows in bay i=O:

T or y ; SC&-fn(l) 4Oj’ c

n=2 128 sinn j+ f 6

( > (35) Lsin- 2

The expression for the bending moment in rings i=l and i=O is yet to be found, as this expression differs from that for the moment in the rest of the rings given in equation (31). The moment in ring i=O is the same in magnitude as that in ring i=1 but opposite in sign. The t.angential loading on ring i= 1 is given by

7 or ~~&)-~L(l,+sd~ s. n j+J * Pli-poj=- 22

n=2 2L sin 7 ( > 2

By analogy with equations (16) and (17), then, the bending moment in ring i= 1 can be written as

;,, m-’ M(l,C$)=- x2 R2m n=2 x [fn(2>-3fn(l)+Sd,lH,(n,dj (36)

Sketch (b).

Equilibrium of these forces requires that

Plj-POjS (QOj-QO,j-ljL-S~Oj'O

Because of the antisymmetry property expressed in equation (27a), the equilibrium equation becomes

2plj-t (~Oj-~O.j-lj~-S~O~~O (32)

It is convenient, now, to expand the Kronecker delta soj in a finite trigonometric series,

f ,Jr !q aoi= C d, cosnj6 (33

n=o

Multiplying through by cos ZjS and summing over j from 0 t.o fn(i). The stringer loads are given in equation (29), the

m- 1 yields the trigonomet,ric coefficients d,. The result is shear flows in equations (30) and (35), and the ring moments in equations (31) and (36). The next step in the analysis is the substitution of thcsc expressions into the equation

(34) obtained from minimization of the stress energy of the cylinder with rcspcct to jn(i).

All the stringer loads, shear flows, and ring bending moments have now been expressed in terms of the coefficients

Energy analysis--By virtue of the symmetry properties in this problem given in equations (27), the energy in the struc- turc to the right of bay i=O equals the energy to the left of this bay. Equat.ion (5) for the stress energy can be written

Minimization of the stress energy with respect to fn(i) results in the following equations:

(37)

Page 21: T, NATIONAL ’ ” -. .> ,. ,. :

and

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 17

.-. ..._L.- II

Note that equation (39) is the same as equation (18), except that equation (39) is valid only for iZ2.

The stringer loads, shear flows, and ring moments are substituted into equations (38) and (39), and then the definite sums and definite integral derived in the preceding section are used to simplify these equations. After simpli- fication, the following equations result: For i=l,

f, (3)+@rn--1) .I, G?+2 @n--Y,,) .f, O)=Sdl ("w-~7~-2)

(40a)

For i=2,

.fn(4)+2y,,.f.(3)+2P,,.f,(2)+(2y,,-lI)S,,(l)= --S(l,, (401))

For i 13,

.f,~(i+2)+2ynJ,~~i+1)+2P,l,,(i)+2~,,.fn(i-1)+flL(i-2)=O (4Ocj

Solution of finite-difference equation.--Equation (4Oc) is the same as equation (23bj; therefore, the solution to equation (40~) is

fn(i) =i-ni[alvAi,n(i) +~2n&n(41 (rE.22) (41)

which is the same as equation (25) except for the values of the arbitrary constants CY~% and CQ,~. These constants are found by tbe substitution of the solution (41) into equations (40aj and (40b). This procedure yields t#wo simultaneous algebraic equations in aln and CQ%, and their solution gives

D +r k~--4~--2 In In 3 2s a2n”-721, r2n-rllLs222n m(l++)

where d,, the coefficient in the trigonometric series for the Kronecker delta aoJ, has been replaced by its value as given in equation (34), and where the Q’s and r’s are given by

%,=.Cn3-L2(3) + (2y,- 1)3.n2&n(2) +2(Pn--Yn)CnLL(l)

(s= 1,2) (42a)

r,,=L4Ld4) +2~ntn3&n(3) +2Pni-RZLt(2) +

(2-f,- l){&,(l) (s=1,2) Wb)

The coefficients .fn(i) are now defined for the distributed perturbation load ancl may be substituted into equation (29) to give the stringer loacls. The shear flows can be found from equations (30) and (35), but, again, once the stringer loads are known, shear flows can easily be found by use of the equations of statics. The shear flow in the panels adjacent to stringer j=O can be founcl by considering symmetry: In bay i=O

pooI-qo, -l=SE$

and, outsidr of bay i=O,

The other shear flows are found from equation (13), as before. If desired, the ring moments can be obtained from equations (31) and (36) ancl the ring thrust and transverse shear can be found from the equations given in appendix B.

SHEAR PERTURBATION LOAD

Expression for stringer loads.-The shear perturbation load is shown in figure 3 (c). The magnitude of the load per unit length appliccl along the stringers ancl rings bordering shear panel (0,O) will be represented by Q. From figure 3(c) it is seeu that t,hc longitudina.1 symmetry properties in this case are the same as those for the case of the distributed perturbation load given by equation (27).

The shear perturbation load is self-equilibrating and gives rise to stringer loads which are antisymmetric abdut panel row j=O.’ For il_ 1, the stringer loads may be represented by

; or q! 1 pij= C fn(ij sin n j-2 6

11=2 ( > (43)

where the coefficientsf,(i) are different from those in the two preceding cases. The term corresponding to n=l vanishes because it represents an elementary bending stringer-load distribution, and the shear perturbation load does not require this distribution for overall equilibrium.

Expressions for shear flows and ring bending moments.- None of the coefficientsf,(i) in the trigonometric series (43) can be found from the equations of statics. Furthermore, the boundary condition at bay i=O must be determined from a consideration of the effect that the shear perturbation load

Page 22: T, NATIONAL ’ ” -. .> ,. ,. :

18 REPORT 1251-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

has on the equilibrium of the portions of stringers in bay i=O and on the bending moment in the rings bounding this bay. Thus the energy approach must be used immediately and the first step in this approach is to write the shear flows a.nd ring moments in terms of fn(i), the coefficients of the trigonometric series for the stringer loads, equation (43).

Outside of bay i=O, the satisfaction of the equations of statics for the portions of stringers between adjacent rings yields equation (13), the same as in the two preceding cases. Substituting equation (43) for the stringer loads into the equilibrium equation (13) and following the same procedure used to obtain equation (15) yields the expression for the shear flows due to the &car perturbation load:

mo~m--l qij= 2 x2 .fn c;+ I)-.f??@ cos TljS (i&l) (44) 11=!2 2L sin $

‘Ihe tangential loadings on the rings to the right of ring i=l are

;ory qu- Pi-l, 3= c

Aiifn(,;) -- cos nj6

n6 “=’ 2L sill _ 2

In appendix B this load is applied to a circular ring and the following expression for the moment in the ring is obtained (see eq. (B13)) :

where

H2h+J=rz$a C-1)’ sin (rm+n) 9 (~m+n)2[(rm+n)2-1]

The convention for measuring the angle 4 here is a little different than before and is illustrated in figure 12 (bl.

Now, the shear flows in bay i=O and the bending moments in the rings bordering bay i=O must be found. Consider the shear flows in this central bay. The shear perturbation loading applied at bay i=O may be written Q&,i. Then the forces on the portion of any stringer j between ring i=O and ring i=l are as shown in sketch (c):

40jL

L -...

Sketch (c).

c I’

-I’

?I 7,

I

BOjL

-4j

Equilibrium of these forces requires that

P~j~P~j+(~~j~~O,j-~)~+Q(~0,j-~~~6,j)~~O

-1

Because of the antisymmetry property, equation (27a), the equation of equilibrium becomes

2Plj+ (403-q& j-l)L+Q(&, j-l-hj)LzO (46)

The substitution of the stringer loads (equation (43)) into the equilibrium equation (46), ancl the introduction of the trigonometric expansion for the Kronecker delta 6,,, (equation (33)) yields the following equation:

17, m - 1 To’

Q(C, [cos (j-I>S-cosjS]- g Qd,, [(‘OS 72 (j-l)S-cos n$J

Sow qoj can bc found by rc~plscing j with a dummy inclcs Ic, summing over k from k= 1 to k=j, and using the condition that the torque on a cross section within bay i=O balances the applied torque. This procedure results in the following equation for the shear flow in the central bay:

m - I ;.r. 2

qoj=Q&+Qd, cos js+ C cos n,js (47) 11 =2

““i!L+,n

I , sin n-

Consider the bending moment in rings i=l and i=O. The moment in ring i=O is identical in magnitude to the moment in ring i= 1 but of opposite sign. The tangential loading per unit, arc length on the portion of ring i= 1 between stringer .j and stringer .i+ 1 is illustrated in sketch (d) :

QFO, C$ stringer /‘+I

I

q,j

~--~ - C$ stringer j

Sketch (d).

When these tangential loads are aclclecl and the sericas ex- pansions for (roj, plj, and 6oj arc introduced, the total load per unit, arc length on ring i=l is given by

; or v ,f&?-3, (1) cos ?) is ‘Ilr--!k+Q~n,= c

?I =2 n-8 2% sin +-

By analogy with equations (16) and (17) the bending moment in ring i=l is

Expressions for stringer loads, shear flows, and ring moments have been written in terms of the coefficients fn(i). The stringer loads are given in equation (43), the shear flows in equations (44) and (47), and ring moments

Page 23: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 19

in equations (45) and (48). These expressions are ready to be substituted into the equation which results from mini- mizing the stress energy with respect to f,, (i).

Energy analysis.-Because the longitudinal symmetry relations which exist for the distributed perturbation load, equations (27), also exist in the case of the shear perturbation load, the stress-energy expression used in the distributed- load problem can be used here. The expressions obtained on minimizing this stress energy, equations (38) and (39), are also applicable here. Consequently, the stringer loads, shear flows, and ring moments just derived are substituted into equations (38) and (39). At this stage in the two preceding cases, certain definite sums and a definite integral were introduced to simplify the equations. A similar proce- dure is followed here.

The clefinite sums which are of interest are

nf sin n (j-a) 6=0 j=o

and for the integers 72 and I rcstrictcd to the range 15 n s”z 2

and 1 =( IS T w - I C cos 1jS ~0s n,j6=0 (l#rij j=lr

=y (Ifs,,,;, ) (I= n)

and

zsinZ(.j-a)s sin n(j-i)S=O (I# 11)

=; (‘f”,,,;) (I= n)

The Icquired dcfinitc iiitegral, wliicll is derived ill appendix C’, is

s 2a H2(n, ~)H&#J)d~=O (I#n)

9

==my”,;) (l=n)

where n and I are restricted to 2 5 ns G and 2 5 15 F.

After simplification the following equations resuIt : For i=l,

= -2LQd, (

fin-4r,-- 11 n6 3 >

Sin-- 2 (494

For i=2,

-f,(4)+2y,f,1(3)+2P,f,*(2)+(2y,~--Irf,(l)=O (49b!

For i~3,

Solution of finite-difference equation--Equation (49c) is the same finite-difference equation for which the solution is written in the two preceding sections. Substitution of this solution, equation (41), into equation (49a) and (49b)

gives two simultaneous algebraic equations for aI. and CQ,,, the a.rbitrary constants. Solution of this system yields

r p,--4-f,--11 n6 272 3 sin -

qn=- %nr2n-J7ln~2n .2. m(P%.,)

r p,-4r,--11 . n6 172 3 - sin -

ffzn= ~2,J2,--r1&, 2 m(fg&

The W’s and I”s in this case are precisely the same as in the preceding case of the distributed perturbation load; Q,, is given by equation (42a) ancl rsn by equation (42b).

With the coefficients f%(i) known for the shear perturbation load, the stringer loads are obtained from equation (43) and the shear flows can bc found from equations (44) and (47). For panel row .j=O, the shear flow equations become

ant1

When the shear flows in panel row j=O are known, it is simpler to compute the remainder of the shear flows by use of thr equations of statics rather than equations (44) and (47). In shear panels (0,l) and (0, -1) adjacent to the loaclcd panel. the shear flow is given by

All the other shear flows are founcl by use of equation (13). If desired, the ring bending moments can be found from equations (45) and (48) and the ring thrust and transverse shear can be calculated from the formulas given in ap- pendix B.

LIMITING CASE OF RIGID RINGS

If the ring bending stiffness is allowed to increase indefi- nitely, the rings approach complete rigidity in bending, the parameter C approaches zero, ancl a considerable simplifica- tion results. For this limiting case, equations (23) for the concentrated perturbation load reduce to

B, .fn(?:+1)-2 ~m+.fw)=o (iZ1) (50)

where A,=3BP-1 +cos n6

B,=3B6*+2(1-cos n6)

This can be shown easily by multiplying equations (23) through by C and allowing C to approach 0. Equation (50) is a second-order finite-difference equation with constant coefficients. The same equation, together with its g.eneral

Page 24: T, NATIONAL ’ ” -. .> ,. ,. :

20 REPORT 1251-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

solution, is given in reference 9, page 31. The solution compatible with the boundary conditions at infinity can be written as

where (51)

cash A,= $’ I I n

and where the upper sign is taken when A,>0 and the lower sign when A,<O.

The arbitrary constant LY% is determined by evaluating the solutions, equation (51), for i=O and introducing the value of jn(0) given in equation (12). The result is iclcnt,ical to aln given in equation (26)

(n 2 2)

Equations (11) and (15)) the expressions for st.ringer loads and shear flows, respectively, used before iu the case of the concentrated perturbation load are still valid. The substi- tution into these cspressions of the solution (51) with the con- stant (Y, as found above yields t,he stringer loads and shear flows due to a concentrated perturbation load when t,he rings can be considered rigid.

For the case of the distributed perturbation load, equations (40) reduce in the limit to

(-A.)f,W + WL+A.)f,dl) =3B62Sd,

The arbitrary const,ant CL, in the solution (51) is

For the shear perturbation load, equations (49) reduce to

(--An)fn (2)+(2B,+A,)f, (l)=-6LQdnB62 sin $

f,(i+l)-2 $&)+j&-l)=O (i 2 2)

The solution is again equation (51) and (Y, becomes

12B62 sin y

ayn= -~ __-__

An(I-temXn+l) m (En,;)

CONCLUDING REMARKS

A method is presented for t.he stress analysis of circular semimonocoque cylinders with cutout.s. It is most accurate in problems where the cutout is located far from cst,ernal restraints. The loading may bc any combination of torsion, bending, shear, or axial load. Other loadings are permissible if the stress distribution in the cylinder without a cutout is lillOWl1.

The method of analysis is based on the superposition of certain perturbation stress clistributions to give the effects of the cutout on the stress distribution which would exist in the cylinder without a cutout. The equations for the three necessary perturbation stress distributions are derived in this report, and tables of coefficients calculated from these equations are presented for a wide range of structural prop- erties. Ring bending flexibility is taken into account in the tables. The tables refer to a structure having 36 stringers, but they can be used for cylinders having any number of stringers by redistribution of t.hc actual stringer area into 36 fictitious stringers. Sample calculations utilizing t.he tables of cocfficirnt~s arc prrscntctl to illustrate t.hc analytical procctlurc. I,.LNGLICT ~RONAUTI~AI, I,AI~OII~ZT~RI.,

S~TIONAI, RDVIS~R~ COMMITTISI': FOR RJ~R~NAuTICS, IANGLIGY FIELD, VA., iMe~~h .Z, i955.

APPENDIX A

SUMMARY OF SIGNIFICANT EQUATIONS

The formulas and parameters required for computing the skess distribution due to conccntratcd, distributed, aud shear perturbation loads are collcctctl in this appendix for reference.

STRINGER LOADS

Concentrated perturbation load (see fig. 3 (a)) :

where P is the applied load. Distributed perturbation load (see fig. 3 (b)) :

where S is the total applied load. Shear perturbation load (see fig. 3 (c)) :

711 m--l -y or -2- pii= ns .f, (4 sin n .i-$ 6 ( > (i 2 1)

SHEAR FLOWS

Concentrated perturbation load (see fig. 3 (a)) : For the shear panels in panel rowj=O,

ancl, for the rcmaindcr of the shear panels,

Page 25: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 21

Distributed perturbation load (see fig. 3 (b)) : For the shear panel (O,O),

qoo=S-2P’0 2L

for the remainder of the shear panels in panel row j=O,

q,o,P~o-Pt+l,o 2L (i>=l)

and, for all other shear panels,

Shear perturbation load (see fig. 3 (c)) : For the panel about which the load is applied,

for the rrmaiutlcr of the shear panels in row j=O,

for the shear panel (O,l),

go, = poo2P,1+t~4 Tl

for tllc rcmaintlcr of the shear panels in pallP1 row j= 1,

p&?LX;3A’+clio (i2 1) J

and, for all otlm- &ear panels.

q*,=Pi,-Pi+l*~ L +4i,,-1 (j22)

EVAI,UATION 0~ THE TRIGONOMETRIC COEFFICIENTS f.(i) FOR FLEXIBLE RINGS

Basic parameters :

E t’ R2 B=ctp

t/R0 c=m

Auxiliary parameters:

4+3$$ sin2 -

Pn=3+ 12cs, 2

l-3 B&z 2 nfi sin’ - 2

Discriminating parameter:

D =NPn-1) It -yy-

Trigonometric coefficients:

f&i) =i-n”[ab2Aln(i) 4a2n~z?z(~>l

vhere (n2_2)

Al,(i) =cos iXn (Dn>l)

=l (Dn= 1)

=cosh ix,, (Dn< 1)

A,,(i) =sin ixn (Dn>l)

=i (LA= 1)

=sinh ixn (Dn<l>

Arbitrary constants for concentrated perturbation load:

where P is the applied load and

0,,={n3As,b(3) +2-rm{2A,,(2) + (2p,- l)<nAsn(l) (s=1,2)

Arbitrary constants for distributed perturbation load:

where S is the total applied load and

Q,,={R3A,,(3) + (2y,- l>{,*&,(2) +2(/L--~y,)rnAsn(l) (S=1,2)

r,,=l,“A,,(4) +2d-$Asn(3) +2/3,[,*ASn(2) + (2y,- l){,A,,(l) (s= 1 ,a

Arbitrary constants for shear perturbation load:

r p,-47,-11 n6 2n 3

sin - W?Z= - hr2n-rln~2n 2 m(En,:)

Page 26: T, NATIONAL ’ ” -. .> ,. ,. :

22 REPORT 1251-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

where Q is the applied load per unit length.

EVALUATION OF THE TRIGONOMETRIC COEFFICIENTS f”(i) FOR RIGID RINGS

Basic parameter: E t’ R2

B=atr2

Auxiliary parameters :

A,=3BP- 1 +cos n6

B,=3B62+2(1-cos ns)

x,=cosh- $ I I 11

Trigonometric coefficients:

fn(i)=a,, (& e-h)’

Arbitrary constant for concentrated perturbation load:

Arbitrary constant for distributed perturbation load:

Arbitrary constant for shear perturbation load:

APPENDIX B

BENDING MOMENT, AXIAL THRUST, AND TRANSVERSE SHEAR IN RINGS

Expressions will be developed for the bending moment, axial thrust, and transverse shear in a circular ring under tangential loads such as those which arise from the diffcr- ences in shear flow across a ring in a circular semimonocoque cylinder.

Two cases must be considered: One case occurs with the concentrated and distributed perturbation loads, where the ring loading is antisymmetric about stringer .j=O. The other case occurs with the shear perturbation load, where the ring loading is symmetric about panel row j=O.

CONCENTRATED AND DISTRIBUTED PERTURBATION LOADS

For the concentrated and distributed perturbation loads, the tangential loading on ring i has been written in the form of a finite trigonometric series (see eq. (16))

where b ,= Aiifn(1:) -A-

v I

2L sin $ (nZ2)

This ring load has a stcpwise variation around thr ring, being constant between stringers and having jump discoutiuuitics at the stringers. The limitation that n 2 2 ensures that the ring is in equilibrium.

The procedure will be to expand each term of the series (Bl) in an infinite Fourier series in the variable 4. For each harmonic of the Fourier series, that is, for a cont.inuous sinusoidal tangential force distribution on the ring, the moment, thrust,, and shear in the ring are easily found. (See ref. 8, p. 33, for esample.) On the basis of inextensional deformation and the neglect of transverse shear distortions, the results are as follows: If the tangential load on ring i is given by

Eni COS n++B,i sin n4 bz2a>

t.hcn the moment, thrust, and shear in this ring are, respec- t ively,

A/r,(i, 4)=-Zni --fL-- sin n4fZ R2 n(n--1) nz n(nz-1) cos n4

1

T,(i, 4)=-Z,i ;;-zs n sin n4+$,, & n cos n4 t

032)

V,(i, 4)=C,i ;$&&j COS n4-+Z,zi g$ sin n4

Figure 11 shows the sign convention used in writing equa- tions (B2).

Consider, now, one term of the series (Bl). To expand this term in a Fourier series, write

b,+ sill n j+f 6~2 (cr),i sin r4 ( > (B3) T=R

where the (c~)~~‘s are the Fourier coefficients. It is obvious that the first harmonic which will occur in the Fourier series in equation (B3) must be that for which T=TZ. The other harmonics, then, will bc added to this to build up the step shape of the loading function. The convention for meas- uring angle 4 in this case is illustrated in figure 12 (a). The index j can be thought of as a function of 4, that is: when 0<4<S, j=O; when S<4< 26, j=l; and so forth.

In order to carry out the expansion, equation (B3) is multiplied through by sin I4 and integrated from 0 to 2~

bnt sin n ~+2 6 sin 14 d4 (. ‘> = J’ 02r gn (c,),~~ sin ,‘4 sin I4 d4

After integration, the right-hand side of this equation becomes

(Cdni~

Page 27: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF CIRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 23

by virtue of the orthogonality of the trigonometric functions. The left-hand side becomes

2 sing ~b,t~sinn(j+~)8sinZ(~+~)6 1

on carrying out the integration. From reference 7 it C~II be shown that

where J,,= 1 if h is an integer, and J/,=0 if h is not au integer Thus t,hc Fourier coefficients are given by

The ,nth term of the tangential loading on the ring is

By USC of the properties of J,, this summat.ion can be rc written

On expansion by the sum and differeucc formulas of trigo nometry and with the use of the fact that m6=2r, it i found that

sin (rm+n) $=(-I)’ sin - “2”

1 036 sin (rm-nj i=(-l)r+l sin - “2”

J

When equations (B6) are substitut,ed into equation (B5> the following relationship results :

From the first of equations (B2) it is seen that if th tangential loading on the ring is given by the right-han side then the bending moment of equation (B7)

359282-C-

i

in that.

1

)

S

>

‘,

ring is

where cos (rm+n)+

H1 (n”‘=,=22m (rm+n)* [(rm+n)“-l]

Equation (B8) gives the bending moment in a ring which carries a tangential load distributed according to one term of the series of equation (Bl) . When the ring is loaded by the sum of such stepwise terms, as in equation (Bl), then the moment is given by a sum of terms like (B8). The bending moment in ring i is therefore

For completeness, the expressions for axial thrust and transverse shear can be written in a similar manner-

where

SHEAR PERTURBATION LOAD

In the case of the shear perturbation load, the t’angcntial loading on ring i is given by the finite trigonometric series

nr 711-l TO’T-

Fij=~ij-~i-l,j= C Uf,i COS ,n.jS @lo) n=2

where a,~i= AtiSn (4

22; sin z (7LZ2)

Equation (BlO) can be treatecl in a manner analogous to the handling of equation (Bl). That is, each term of the series in equation (BlO) can be expanded in a Fourier series. Then the moment, thrust, and shear in the ring are written immediately.

Analogous to equation (B3), write m

a,, cos njS= C (c,),&~ cos I@ r=1L (Bll)

where, now, the angle 4 is as shown in figure 12 (b). If both sides of equation (Bll) are multiplied by cos ZC$ and inte- grated from 0 to 29r, there results for the Fourier coefficients:

2 sin Is 2 m-1 (Cljni=- ani C cos njS cos 1jS Tl j=O

I. - ---_- ._ I II. II -..

Page 28: T, NATIONAL ’ ” -. .> ,. ,. :

24 REPORT 1251-NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS

It can be shown (see ref. 7).that Similarly, thrust and shear are m-1 C cos njS cos IiS=; j=O

Jl-,+ Jr+. - - +L?!g! 711 m >

so the n.th term of the tangential loading on the ring is T(i,+)=- nFz R 5 a,[ sin g K,(n,+)

IS and m m-1

a,i’cos njS=: ani >

sin - + cos I+ (B12)

z Or--F- V(i,+)= nzz R z U,(i sin F L2(rL,+)

This summation becomes where

U,,i COS n.j6=5 a,Li sin $ 5 (-1)' cos (rm+n.)+

I=--m rm+n

which corresponds to equation (B7). Then the bending moment is

H*(n,+)= 5 C-1)’ sin (r?n+?x)+ 7=--m (~m+n.)‘[(rm+n)“-l]

cos (rm+n)+ __ -- L*(n~+)‘T=$a (-lT (7m+nj[(rm+nj*-l j

APPENDIX C EVALUATION OF DEFINITE INTEGRALS

In order to minimize the stress energy it is necessary to investigate the following definite int,egrals:

s

2ir HI hd HI (hbj (14

0

zzz

J’ 02T,=$ Dr,, cos (rm+n)d 2 D,, cos (sm+I) #xl+ (Cl) m s=--m

and

D,,, = -__.~ (rm+n)’ [(ltrn+%izfl

and where int;egcrs n and 1 are limited t,o t.tie following ranges:

2 j ‘11 5 T

2szs$ --

Consider the relation (Cl). The right-hanct side can be written

Sow, b)- virt.ue of the limited range of tlie integers n and /, the following relations can be writ ten :

6 7m+n, --sm--l ( =a8 +1+x=&. -r-,61 n-

Eti,, z ’ 2 ’ *

Thus, when 25n<F, equation (Cl) yields

S 2rH, (n,+) H, CZ,c$) d+=o (1# n) 0

If n=$ the following equation is ot~tsinctl:

Since

D 1

--r-1.7 “I ( -m-mm.+~ 1 2 K -rm-m+$ ? 2 -1 1

I -. ( -,,m2!

2 )‘K -ym-!!I 2 j* -1 1

it: is found that when n=? 2

Page 29: T, NATIONAL ’ ” -. .> ,. ,. :

STRESS ANALYSIS OF ClRCULAR SEMIMONOCOQUE CYLINDERS WITH CUTOUTS 25

To summarize, then,

=S,~(l+6~,~) (Z=n)

,- _r

Consider the relation ((32). It is handled in a mannel analogous to the treatment of (Cl). Equation (C2) can be written

=,=zm ,=?Im (--1)‘(-l)“D,,n,,(d,,S,~l-6,, --r-d,, & ” 7r ‘2 ‘2 > For 2 5 n<$,

S 2r H,(n,~)FI*(Z,~)tl~=O (Zf71)

0

= 5 D,,,%=s,)lr (Z= n) ,=---m

If IL=-? 12

Thus the definite integral (C2) gives precisely the same result as (Cl)

cau be expressed in closed form with the aid of formula 6.495, number 2, reference 10. -The result is

s =T 2+cos nfi 2-t 62

6* cos n6 cos 6-l n 12 (I-cos n6) l-cos n6 -4 (cos n6--cos 6)* +

5 6 sin 6 4 cos n6-cos 6

HOW~VCI’, the series form of S,, because of its rapid cou- vcrgencc, may bc more convc~nicnt Lhau tht clost~tl form fol use in computation.

REFERENCES

1. Ikskin, IAeon: Stress Allalysis of Open Cylindrical JIcnhranes, Jour. Acre. Sci., vol. 1 I, no. 4, Oct. 1944, pp. 343-355.

2. Gololohov, M. 11.: Shear DistributioIl Due to Twist in a Cylin- drical Fuselage with a Cutout. Jour. Aero. Sci., vol. 11, no. 4, Apr. 1947, pp. 253-256.

3. Langhaar, Henry I,., and Smith, Clarence R.: Stresses in Cylin- drical Semimonococtuc Opel1 Beams. Jour. .Aero. Sci., vol. II, 110. 1, Apr. 1947, pp. 21 t-220.

-I-. Vaughan, IV. L.: Fllselage Clltout, Atlalysis. Aero Digest? vol. 63, no. 5, SOY. 1951, pp. 42-50.

5. Cicala, P.: Effects of Cutouts ill Semimonocoqlle Structures. dour. Acre. Sci., vol. 15, 110. 3, >lar. 1048, pp. 171-179.

6. 1lcComb, Harvey G., Jr.: Stress Allalysis of Sheet-Stritlgw Panels \Vith Cutollts. Jour. Aero. Sci., vol. 20, 110. 6, June 1!)53, pp. 387401.

7. \Yillers, Fr. .4.: Practical Analysis. Dover Ptlblications, Inc., c. 1!)48, pp. 334-336.

8. Duhcrg, John E., and Kempner, Joseph: Stress Analysis by Recurrence Formula of Reinforced Circular Cylinders Under Lateral Loads. SACA TX 1219, 1947.

0. Ebner, H., and Kiiller, H.: Calculation of Load Distribution in Stiffened Cylindrical Shells. NACA TM 866, 193%

10. Adams, Edwin P., and Hippisley, R. I,. : Smithsonian Mathe- matical Formulae and Tables of Elliptic Functions. Second Reprint, Smithsonian Misc. Coll., vol. 74, no. 1, 1947, p. 129.

Page 30: T, NATIONAL ’ ” -. .> ,. ,. :

TABLI’, I.-LOAD ‘DISTRTBUTIOT DUE: TO A UNIT PERTURBATION LOAD

[I?=S; C=O; m=36]

(a) Concentrated perturhat.ion load 011 strilrgcr j=O at, ring (b) Dislributcd perturbation load on stringer j=O between /I=0 rings i= 0 and i= 1 (c) Shear perturbation load about shear panel (0,O)

j Stringer load, p,i, at stntioll- Stringer load, PiilL, at station-

i / _-

i=O

! j ..-- .- _-~. - .____ - , i=l i=2 i=3

---~ ,.__- I -I- 0 0. 1924

i ;: .oi27 0340

: : .0128 0195

5 .nO92

0. 0567 I 0.0499 .OG29 .0475 .0499 .0447 .0379 I

i=6 __-

0. ww -. Owl -.woz -.ocm -. oooz

I:$g$

-:E .OQOl .ooOl .cca2

:Ei .woz .0901 .CCJOl .cuoo

- T -

.-

-

- -

_- i=l i=2

0.0476 0.0565 .0895 .0490 .0511 .0475 .0330 .0402 .0232 .0329 .6?12 .0266 .0130 .0212 .009i .0165 .a070 .0123 .cQ47 .@I84 .0026 .w50 .cm7 .0018

-_ 0010 -. 0010 -.0024 -.cm35 -.cO3G -.lM5F --.0046 -.0072 -.0053 -.0084 -.lM57 -. 0092 -.0059 -.0094

j=3

O: KY .0429 .0394 .0349 ,036O .0250

0202 0154

.OllO

.0067 ,002s

-_ 0008 -_ Ml39 -. 0065 --.0086 --.0102 -. 0111 -. 0115

i=4 i=l i=2 i=3 i=5 i=G

0.0423 .0418 .0404 ,038!2 .0352 ,0316 .0274 .0229 .0182 .0134 .0086 .a040

-.oNn --.0040 --.0073 -, 0099 -. 0118 -. 0130 -. 0134

i=4

-0. oool -.cQo8 -. 0010 -. 0011 -. 0010 -.0007 -.0004 -.KWl

.woz

.wo4

.OKl5

.0006

.ooo6

.0006

.0005

2% .wOl

_- 0

; 3 4 5 6

I 9

If 12

:: 15 16 li 18

- I

0.5400 i II 0 0 0

.H 0 a it II II 0

0.043i .0430 .0414

: %3 .0311

! 1’: g;y .0406

i : 0383 0352

0. 0421 .041G .0403 .0381

I .n:wl .oz(iji j 02i3

; if;; 1 : ipy

: ooix 0035 : .0039 0084

--.OInl5 -. no03 -. 0040 -. 0040 --.OOiO --.OOi2 -.0094 -.0098 -.0112 1 --.lllli -_ 0122 -. 0128 -. 012O -. 0132

~-- _~

: El Oli5

.a134

.0098

.0067 0038

.0013 -_ 0010 -. 0030 -. 0047 -. 0060 -. 0070 -.00X -. 0078

.0398

.0341

.0286

.0234

.0185

.0140

.0098

.0059

.0023 --.0009 -.OQ37 -. 0061 -_ 0080 --.0094 --.0102 -. 0105

0.0447 .0441

0421 ,039il .0351 .0307 .0260 .0211 .0164 .0117 .0073

W32 -. WOG -_ 0040 -. CO68 -. 0091 -. 0107 -. Olli -_ 0121

O: E .0410 .0385 .0352 .0313 .0270 .0224 .0176 .0128 .0081 .OQ37

-.cilO4 -.0040 -. 0071 -. 0096 -_ 0114 -_ 0126 -. 0130

---

f : 5 6 i

i

:: 12

::

:i 17 18

0.0067 --.0118 -. 0100 -. OOfil -. 0031 -. 0011

.0003

.Ooll

.0017 0020 0021 a021

. 0020 cm3

.M)14

.Ooll

.ooo7

. oil02

-0.cQ19 -. CQ16

-:EZ -. 0021 -. 0012 -.0005

0002 .OW6

ow9 .OOll .0012

Ml11 0010

.wo9

:E . Oil01

-0: ;;;: -. 0125

1: g;; .M)16 .0026 .0032 .0036 .003i .0037 .0035 .OO32

2% .OQ17

0010 .OcQ4

-0. oool

I:$$

I:$$ -.GaO4 -. oooz -.OCOl

:E .owz

:fE .lMO3 .0003 .om2 .Mml .oow

0352 :0316 .02X .0231 .0184 .0135

0087 :w41

--.0002 --.ln40 - OOi3 -. 0100 -. 0120 -. 0132 -. 0138

,0068 .0051 .003F .a024 .0013 .a003

’ !

12 ~ -.0001i 13 -. 0013

I 14 --.0020 15 -. 0025

i 16 17 I -.a029 -. 0031 18 ) --.0032

I 1 Shear flow, qii, nt station- -i Shear flow, qijL, at station- Shcilr Bow, gijC, at station-

0 1

: 4

i

;: 9

:7 12 13 14 15

:t 18

i=l --__

0.1357 .0097

-. 0159 -. 0184 -. 0162 -. 0134 -. 0107 -. 0083 -.oom -. 0043 -. 0925 -. 0010

cQo4 .OQ17 . CO27

: Ei .0045 .0046

i=O -_

0.698’5 -. 0629

.0119

: :Zi .0451 .0419 .03(x

:Ei .0156 .0082 .0012

-.0052 -. 0108 -. 0153 -. 0187 -. 0207 -. 0214

i=2 i=3 i=O i=l i=3 i=l

i=4

0.0916 .0016 . Oil11 .Om5

-. oool -. 0007 -. 0010 -. 0912 -. Cal2 -. Ml11 -. oooa --.ooo6 -. 0002

.woo

.oM13

.0006

.0007

.0008

.ooo9

i=5

0. ooO8 .ciKl7 .Oc05 .Oc03

$g

-.ooO6 -.WO6

z:g!j --.w93

-:E

:E .lHw4 .OMl4 .0005

i=5 1 / . i=lJ / i=l

/

j=2 -__-

0.0034 .0188 .0240

: E .OllO .0052

0001 -. Oil41 -.OOi2 -. 0093 -. 0104 -. 0105 -. 0098 -. 0084 - OOR4 -. 0040 -. 0014

i=5 -__-

0.0004 0010

.0016

.0018

.0018

.Gi)lF

.w12

.OKI6

2% -, 0010 -, 0013 -, 0015 -. 0015 -_ 0013 -. 0010 -. Cm07 -. 0002

0. am? .0154 .0052

1: z;yl -.0060 -. 0058 -. 0051 --.M)42 -.0031 -. 0021 -. 0011 -. 0001

.ooo7

.0014

.0020

.0024

.0026

.0027

.- 0.22G2

.136a

.085F

.0527

.0294

.0122 -. 0007 - .0105 --.Oli5 -_ 0222 -_ 0248 -. 0255 -, 024(i

-0.0044 Vd60

.a396 0324

.022i

.0133

.OQ52 -.WlO -. OolB -. OlOli -. 0129 -_ 0140 -_ 0140 -_ 0129 -.OlllJ -.w83 -. 0052 -. 0018

0.0052 .M)34 .0026 .0008

-. 0010 -_ Oil21 -. 0026 -.0026 -.OO24 -. 0019 -_ 0014

-:Ei .OOil2 .cuJO7

cm1 .0013 .0015 .0016

0.002G 0.0008 .0060 ,0025

OOBF .0036 .0094 .0041 .0085 .0039

OOG4 .0033 .0038 .0022 .0012 0010

-. 0012 -. 0002 -. Gil31 -. m13 -. 0045 -. 0021 -, 005.3 -, 0027 --.OQ56 -_ 0029 -.OQ54 -_ 00% -.004i -. 0025 --.003F -, 0020 -. 0023 -. 0012 -.0008 - 0004

0.0002

2% .0012

: IlK .000x .wO4

-:z --.OWF -. 0009 -. 0010 -_ 0010 -. 0009 --.ocQ7 -.0005 -.0002

0 0. 307i 1 .1623 2 .0942

O.OFi9 .Oiili : g;;

02X ,013i

0030 - .0053 -_ 0115 -. 0153 -. 0183 -. 0193 -. 0189 --.Oli2 -. 0145 -. 0109 - 0068 --.0023

0. c&53 .0087 .0133 .0141 .0121

Ml86 :0047

WI0 -. 0021 -. 0046

0. II011 0038

.0053

.0059 005li

: 0045

: ;g --. IIOOJ -_ 0019 - 0030 -. 0037 -. 0040 -.w39 --.0034 --.OO26 -. OOli -. lXH)ti

0. 0006 no15

.0023

.0026

: IIE 0010

: OKN OWJ

-.0008 -.0014 --.0018 --.0020 -.0020 --.OQ18 --.0014 - .a009 -. 0003

3

i Ii i

i 10 11 12 13 1-L 15 lli Ii

0112 -:(I025 -.0127 -.0200 -.0248 --.02i3 --.0279 -.0268 --.0240 -. 0201 -.0151 --.0094 - .0032

-. 0064 -.0073 --. InI --.0072 -. OOli2 --.004x -. 0030 -. 0010

13 j --.0222

1: ; -_ -. 018ii 0140 1G --.oosi 17 --.0029

-

Page 31: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 2.-LOAD DISTRIBUTIO?r: DUE TO A UNIT PERTURBATION LOAD

[B = 30; C = 0; m = 361

(b) Distributed perturbation load on stringer j=O between rings i= 0 and i= 1

(a) Concentrated perturbation load on stringer j=O at (c) Shear perturbation load about shear panel (0,O) ring i=O

-

j

-

i 3

!

Y

i 10 11 12 13 14 15 16

:;:

i Stringer load, pii, at station- Stringer load, pci/L, at station-

-

_-

-

i=5 i=6

0.0491 ,047s .0443 .0394 .0341 .02.% .0236 .0188 .0143

0100 .0061 .oQ24

-.cGl9 -.0037 -.0062 -.O%M -. 0095 -. 0104 -. 0107

0.0463 .0454 .0429

: FE .0300 .0251 .0203 .0156 .Olll ,006s .0029

-.cw7 -.cm39 -.0066 -.w37 --.0103 -. 0112 -. 0116

-

_-

-

--

-

-

-

--

-

--

- -

i=l

0.1518 .0866 .0374 .0209 .0137 .0098 .0072 .0054

%~ .0013 .OlM3

ZE -.0021 -.0027 -.CQ34 -.cm33 -.0034

i=2

0.0%2 .0711 .04&3

: E .0177 .0134 . 0100 .0073 .0049 .0027 .om3

I:gg -.0037 -.0047 -.005-t -.0058 -.ooi3l

i= 3

O: E3F; .0484 .038n .0296 .0232 .0181 ,013s .0102 .0069 .0040 .0013

-. co10 -.lw31 -.0048 --.@I62 --.0072 --.&I78 -. cm30

i=4

0.0541 ,051s .0462 .0393 .0326 .0267 .0214 .0167 .0125 .0086 .0051 .0019

-. 0010 -.0035 --.OQ56 -.0073 -.0085 -.0093 -. 0095

i=l i=2 i=4 i=l

-0.2242 -. 0377

1: g;; . cm3 .0026 .0034

:i% .w42 .0941 .0039

:%f .0025

:Ei .OQo4

i=2

-0.0331 -. 0329 -.0148 --.0060

-:% .0017 .0025

:tL%?

:%t

:iE .0020

:E .Om3

i=3

-0.0081 -, 0142 -, 0109 -. 0062 -.0029 -.OOO8

.ooo6

.0014

.w20

.@I123

:EE .0022 .0019

5%

2%

i=3 i=5 i=6

0.0476 .0465 .0435 .0393 .0345 .0294 .0244 .0196 .0150 .0106 .0065 .C027

-.cnx@ -.0038 -.0%4

1::; -. 0108 -. 0112

i=5

-2% -.co37

1: g;; --.0012

-:zi .0008 .OOll . cml12 .0013

:Ef . 0010

:E: .oca2

0 1

i 4

i

z 9

:: 12 13

:“5 16 17 18

-

0.2350 .0603 .0214 .Olll .0071 .ooEo

2% Oil19

.9013

:%T -.cm4 -.C008 -. 0011 -.0014 -. 0016 -. 0017 -. 0018

0.1124 0789

.0447 ,027s .0191 .0139 .0104

:i% .0037 .0020 .cm5

-.oim -. 0020 -. oil29 -.0037 -. 0043 -. 0046 -. cm47

0.0729 .0644 .0489 .0360 .0270 .0206 .0159 .Ol%l .cn88 .0059 .0034 . 0010

-. 0010

-:iE -. 0055 -.0063 -. 0069 -. 0070

0.0583 0.0514 .0550 .0496 .0473 .0452 .0388 .0394 .0313 .0334 .0251 .0278 .0198 .0226 .0154 .0178 .0114 .0134

W78 .0094 .0046 .0056

Oil16 .0022 -. 0910 -. ooo9 -. 0033 -.0036 -. 0052 -.cN359 -. 0069 -. 0077 -. 0079 -. 0091 --.OQ86 -. 0099 -. 0088 -. 0101

;

- 1

I - -

-

j Shear flow, q;;, at station- 1

7

Shear flow, !,%jL, at station- -

_-

-

-

-

__-

i=2

O: 0°K

2%

1: g; -.0054 -. 0042 -. 0032 -. 0022

I:$$

:E% .0013 .0918 .0021 .0022 .0023

- j i=O i=l i=4

-

-

i=4

0.0035 .008E .0109 .0103 . OG32 .oml

W27 .Om2

-.0019 -.M)34 -. 0045 -. Ml50 -. 0051 -.MJ48 -. 0041 -. 0031

I: gj$J;

- --

i=3

O: Fl:: .0140 .0126 .w9+ .0061 ,002s

-.OOOl -. 0025 -. 0042 -. 0053 -. co59 -. 0059 -. 0055 -.0047 -. lx)36 -. 9023 -.ooo8

-

_-

-

i=3

“2% .0016

r:g$ -.0044 -.0040 -. 0033 -. 0326 -. 0019

2% .oooo

:z%i .0013 .0016 .9017 .0018

i=2

0.0108 .0231 .0234 .0186 .0127 .0972 . Of125

-. cull3

z:g -.0076 --.0081 --.cKEn -. 0074

Xii -.0030 -. 0010

i=5

0.0014

:tlG .0054 .0047 .0035 .0021 .6i106

-.0007 -. 0018 -. 0025 -.w30 -. 0031 -.0030 -.0026 --.0020 -. 0913 -.0004

i=O i=!Z i=3 i=5

0.0019 .oo.!dl .0066 .0067 .0057 .0041

:fl% -. 0010 -. 0022 -. 0031

1: E

I: 2;; -.0023 -. 0015 -.OQO5

i=O

0.1741 .0875 .0501 .0292 .0155 .w57

-. 0016 -. 0069

1: ;:g -. 0146 -. 0149 -. 0143 -. 0128 -. 0107 -.0080 --.@I50 -. Ml17

i=l

0.0333 .0489

: E .0153 .0074 . 0012

-.OQ34 -.0069 -. 0092 -. 0106 --.Olll -. 0108 -.0098 -. 0082 -, K-162 -.0039 -. 0013

i=4

O: E .0084 .@I83 ,006s .0047 . OiI25

-SE -. 0027 -.lM37 -.cLl42 -.0043 -. 0041

I: ;“2: -. 0017 -.OilO6

i=l

0.0863 .CK38 .0444 .0277 .0156 .0067

-2% -.0087 -. 0112

1: ;:g -. 0124 -_ 0112 -. 0094 -. 0071 -.0044 -_ 0015

0.5133 --.0382

.0372

.0537

.0562

.0535

.0482

.0413

: E .0168 .0085 .cHxI7

-.0064 -. 0126 -. 0176 -. 0212 -. 0235 -.0243

0.1726

1: ;;;; -. 0167 -. 0120

1: g$; --.0050

I:Jg -, 0014 --.wo4

%i% .0018 .0023 .0027

:t:

0.2150 .0944 .0516 .0294 .0152 .0052

-. 0022 -. 0076 -. 0115 -. 0140 -. 0154 -. 0156 -. 0149 -, 0134 -. 0112 -.0084 -. 0052 -. 0018

L

0.0198 .0343 .0301 .0220 .0141 .OiI74 .0020

-.0023 -. 0055 -. 0077 -.0090 -. 0095 -. 0094 -.0085 -. Ml72 -. 0054 -. 0034 -. 0012

“2% .0016 .OC01

-. 0010 -. 0016 -. 9018 -. 9018 -. 0015 -. cm2 -.cm9

I:gjy .OnO2

:%I:

:% . Cm0

0.0073 .0167 .0183 .0155 .Olll

2%: -.0006 -. Oil33 -.0052

-:%4

I:gj --.0055 -. 0042 -. 0026 -.ooo9

Page 32: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 3.-LOAD DISTRIBUTION DUE TO A UNIT PERTURBATION LOAD

[B = 100; C = 0; m = 36 I

(a) Concentrated perturbation load on stringer j=O at (b) Distributed perturbation load on stringer j=O ring i=O between rings i=O and i= 1 (CJ Shear perturbation load about shear panel (0,O)

r-

j

-

-

Stringer load, p,y/L, at station-

j - i=2 / i=3 ) i=4 i=5 i=6 i=l

a -0.3168 -. 0288 -0.1198 -. 0433 -0.0485 -. 0335 -0.0214 -. 0226 -0: :;tj; -0: g;

: -_ 0043 oOQ4 -. -. 0127 0035 -. -. 0147 0057 -.0064 -.0132 -. -.Oll62 0107 1:::

i .0022 .0032 ,001s 0001 -. .0007 0015 -.OOOZ -. 0025 -.owz9 -.0608 -. -. w29 0011 i ,003s .0042 .0028 .0034 .w19 .0027 .0012 .0020 .0006 .0015 .oooz

9 .0045 .0037 .0031 .0025 0020 :%

:: .0045 .0044 .oQ39 ,003s .0033 .0033 .0028 ,002s :ZE 5%

:3” .0041 .0037 .0036 .0033 : %i .0027 .0025 ,002-l .0022 :E 14 .0032 .0028 .OiI25 .0022 .0019 .0917 :i .0026 .0019 .0023 .0017 .0020 .0015 5%: 5% .0014

:; .0012 .OOlO .ooil9 .Mw)8 .cNl7 :k-G; .0004 .0004 .0003 .0093 .0002 .lnM2

- -

-

Shear flop, iii, at station-

j - i=O i=l i=2 i=3 i=4 i=5

-.- -__ ~-~--~

0 0.3632 0.1628 0.0704 0.0337 0.0179 0.0104

:: -. ,0546 0032 -. -. 0342 0197 -.cQo9 -. 0106 -.OQ43 .0065 -. .cml68 0010 :%i

: .0632 .0624 -. -. 0114 0075 -. --.0064 0086 -.00X3 -. 0051 1: gg 1: g;;

t! .0579 .0515 -. -. 0053 0040 -. -. 0048 0036 -. -. 0941 0032 -. -, 0034 0028 I::2 7 ,043s -. 0029 -. 0027 -. 0025 -. co22 -. 0020

i .0353 .I1264 -. -. 0021 0014 -.0020 -. 0013 -.0018 -. 0013 -. -. OQ17 0012 -. -. 0015 0011

:: .0174 .0086 -. --.0002 0008 -. -. Oil08 0002 -.ooo8 --.coO3 -.m7 --.lm3 r:y;

:i -. .0004 OQ71 .0003 .0008 .OcQ2 .0006 .m5 .l?Nll .OOOl .Om4 :E

:“5 -. 0135 .OOll .oOlO .CGQ8 .OQO7 .C+O6 -. 0188 .0014 .M)12 .ooll

16 - .0226 w17 .0014 .0012 :E :%z

:i -. -. 0250 0258 ,001s .UO18 .0016 .0016 .OQ13 .OQ14 .0012 cQ12 :?I::

Stringer load, p;j, at station- Stringer load, p;i, at station-

i=6

0.0611 .0566 .0475 .0383 .0306 .0243 .0191 .0147 .0109 .0075 .0044 .0015

-. 0010 -. 0032 -.0050 -. 0065 - .0076 -. 0083 -. 0085

__-

i=3 i=4 i=5

0.1268 0.0932 0.0753 .0779 .0714 .0645 .0431 .0474 .0485 .0264 .0321 .0357 .0179 .0229 .0267 .0129 .0170 .0204 .W96 .0129 .0157 .0072 .0097 .0119 .OQ51 .0070 .0087 .0034 .0047 .0059 .0019 .0026 .0033 .0005 ,000s 0011

-.OQO7 -. 0009 -. 0010 -. 0018 -. 0023 -. 0027 -. 0027 -. 0035 -_ 0042 -. 0035 -. 0045 -. 0054 -. 0040 -. W52 -. 0063 -. 0043 -. 0057 -. 0068 -. 0044 -. 0058 -. 0070

-__ i=6 i=O i=l i=2 i=3

0.1062 .0750 .0460 .0297 .0206 .0151 .0113 .0084 .0061 .M)40 .0022 .CilO6

--.OGQ8 -. 0021 -. 0032 --.0040 -. 0046

3%!

i=4 i=5 i=l

0.0825 ,067s .0483 .0342 .0250 .0189 .a144 ,010s

oil79 .0053 .0030 .0009

-. 0009 -_ 0025 -_ 0039 --.0050 --.@058 -. 0063 -. 0064

0.0692 0615

.0484 0369 0283

.0219

.0170

.0129

.0095

:$3”: .0012

-. 0010 -.0029 - .0045 --.0058 -. 0068 -. 0074 -. 0076

0

::

:

f!

i 9

10 11 12 13 14 15 16 17 18

O: Et ,0127 .0063 .0040 ,002s ,002o .0015 .ooll .0007 .0004 .OOOl

-. 0002 -. 0004 -. 0006 --.M)O8 -. 0009 -. 0010 -. 0010

0.1972 .0770 .0324 .0177 .0115 .0081 .0060 .0044

: E .OQll .0002

-.OQO5 - 0012 -. 0018 -_ 0022 -. 0026 -. 0028 -.OO28

0.0648 .0589 .0480 .0377

0295 : 0231 .0181 .0138 .0102 .0070 .0040 .0014

-. 0010 -. 0030 -. 0048 -. 0062 -. 0072 -. 0078 -. 0080

! Shear flow, q+L, at stntion- Shear flow, qiiL. at station-

i=4 i=5

0.0090 0.0052 ,015s .0108 ,014s .0113 .0112 .0092 .0074 .0065 .0040 ,003s .0012 .0014

-. 0010 -. 0005 -. 0027 -. 0020 -. 0039 -. 0031 -. 0046 -. 0038 -. 0049 -. 0041 -. 0048 -. 0041 -. 0044 - ,003s -.0037 -.cO32 - .0028 -. 0024 -. 0018 -.0015 -. 0006 --.OOOE

j -- i=O

.-- --

0 0. 1400

: .0543 .0289 3 .0162 4 .0082

i -, .0026 0015

i -, -, 0045 0066 9 --.0080

:i -. - .0089 0087

12 -. 0085 13 --.0076 14 --.w64 15 -_ 0048 16 - ,003o 17 -. 0010

j -__- i=O

0 0.1226

; .0527 .0286

4” .0162 .0083

: -. ,002s 0013

: -_ - 0043 0064 9 -. 0978

:: -. - 0085 0087 12 -. 0083 13 -_ Oil74 14 -_ 0062 15 -. 0047

:t -_ -_ 0029 0010

-

.-

-

-

-

_-

-

-

-

- i=l i=2 i=l i=2 i=4 i=5

_-__

0.0066 0.0041 .0129 .0089 .0129 .0098 .0102 .0083 .0070 .ooEc .0040 .0036 .0014 .0015

-. 0007 -. 0003 -. 0023 -. 0018 -. 0035 -. 0028 -. 6042 -. 0035 -. 0045 -. 0038 -. 0044 -.OiI38 -. 0041 - .0035 -.0034 -.OO30 -_ 0026 -. 0022 -. 0016 -. 0014 --.OWl6 --.0005

i=3

0.0119 .0191 ,016s .0123

oil79 .0041 .OOll

-_ 0013 -. 0031 -. 0043

-:iZ -. 0052 -. 0048

I: ;;;; -. oil19 -. 0006

- 0.0510 0.0233

.0409 ,0283

.0259 0214

.0157 .0142

.0087 .0085 Oil36 .0040

-. 0002 Gil06 -. 0930 -, 0020 -. 0051 -, 0040 --.0064 -. 0053 -. 0072 -. 0060 -. 0074 -. 0063 -. 0071 -_ 0061 -. 0064 -. 0055 -. 0054 -.w47 -. 0041 -. 0035 -. 0025 -. 0022 -. 0009 -. 0007

0.0814 ,0472

0275 .0161

: %E - ,3007 -. 0036 -. 0057 -, OOil - ,007s -. 0080 -, 0077 -. 0069 -. cQ58 -. Oil44 - .0027 -. 0009

0.0352 0.0168 .0343 .0234 .0237 .0191 .0151 .0133 .0087 .0082 .0039 .0041 .0002 .0008

-. 0025 -. 0016 -. inI45 -. 0035 -. 0058 -. 0048 -. 0066 -. 0055 -. 0068 -. 0058 -. 0066 -. 0056 -_ 0060 -. 3051 --.0050 --.0043 -_ 0038 -. 0033 - .0024 -. 0020 -. 0008 -. 0007

-

4

Page 33: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 4.-LOAD DISTRIBUTION DUE TO i\ UNIT PERTURBATION LOAD

(b) Distributed perturbation load on stringer j=O between rings i=O and i= 1

(a) Concentrated perturbation load on stringer j= 0 at (c) Shear perturbation load about lhear panel (0,O) ring i=O

Stringer load, pij, at ststion- Stringer load, pij, at station- Stringer load, piilL, at station-

i i=I i=2 i=3 i=4 i=5 i=6

.-___ --______-

:: -0.3817 -. 0197 -0.2188 -. 0402 -0.1276 -. 0427 -0.0759 -. 0383 -0: ;;y; -0.0288 -. 0256 3 -. OQ18 -.0084 -. 0125 -. 0143 -. 0145 -. 0138

: .0014 .0027 -. cm2 cull4 -.0033 .0002 -. oil49

-:iE

-. --.0016 0058 -. -. 0063 w22

6 .0035 .0027 :E .olw6

i .0041 :i% .0023 . 0018 :E .0044 .0034 .0030 .0026 .lw22

1: .W46 . W46 .0042 .0642 :E . .0034 w35 .0030 .0032 III27

:: .0045 .0042 :%i :Ei :k%i :FlE :E .0023

:: .0033 Ml38 :E .0633 .0031 .0025 .cHEQ .0023 .@026

15 .0027 :2:: :E :k% .I?020 . 0019 16 .0020 .c017 .w15 .0014

17 .0012 .OOll .oOll 5% 18 .6604 .OiM4 inIo4 .lwo3 :Ez :E

j i=O

- i=4

O: % ,0417 .0260 ,016s .0121 .cml .0067 .0043

3% .ciIO4

--.Om7 -. 0017 -. 0026 -.0032 -. 0037 --.mo -.0041

-

- i=l i=2

0.4108 0.2820 .0286 0628

Oil76 .0213 w37 .0109 Oil23 .0069 0016 ,004s

.0012 .0036

.ooo9 .0026

.0+06 .0018 ow4 .0012

.Om2 .0006

.0(xX) 0001 -.OOOl -.wo4 --.Oal3 -.OOQ7 -.0004 -_ call -. 0905 -_ 0014 -. 0005 -. 0015 -.ooO6 --.0017 -. OlW6 -. 0017

-

-

-

i=3 i=5 i=6 i=6 -__

O: ::3 0464

.0305

.0215 ,015s .0119 .0089 .0064 .0043

:?I$ -.oiiQ9 -_ 0022 -. 0033 -_ Ml42 -, 0043 -.0052 -. 0054

i=3 i=4 i=5

0.2038 0.1549 0.1234 .0757 .0785 ,076s ,031s .03w 0436

0172 .0227 .0271 .Olll .0150 0185 .0079 ,010s .0134

oas .oao 0100 Oil43 .0059 .OQ74

.0031 .0042 .0054

.oQzll .0028 .0035

.OOlO .0015 .0019

.0002 .0003 .0005 -.ciM5 -. 0007 -_ WOS -_ Oil12 -. 0016 -. 0019 -_ 0017 -. 0023 -_ Ml28 --.0022 -. 0323 -.0036 -. 0025 -_ w33 -, 0041 -.W27 -. 0036 -.0044 -, 0027 -. 0037 -. 0046

i=l i=2 -__

0.1756

: E .02ul .0132 .0094

Ill69 .0051 .0036

W24 .0013 .0003

-. cm6 -. 0014 -. 0020 -. 0025 -. 0029 -.W31 -.0032

0.1116 0.0945 .0752 .0713 .0453 0472 .OZW .032u .0201 0228 .0147 .0170 .OllO ,012s , W82 .0096 .0059 .0070

Of139 rN46 .0021 .W26 .0006 .KKl7

-. 0008 --.mo3 -. 6021 -. 0023 -. 0031 -. 0035 -. 0939 -. 0045 -. ml45 -. 0052 -. 0049 -_ 0056 -.ooe.l -. GQ57 I -

Shear flow, *ii, at station-

j i=O 1 i=l 1 i=2 1 i=3 1 i=4 ) i=5

Shear flow, g& at station- Shear flow, gxiL, ot stoticn-

j -. i=O

.__ i=2

-- i=3

-__ - i=4 i=5

-__

0.0157 0.0104 .Oli5 .0140 ,012s .0113 .0084 .0078 .oml ,004s .0023 .0024 .0003 .0005

-. 0013 -_ 0010 -.0024 -. 0021 -, 0032 -_ 0028 -_ 0036 -. 0032 -_ 003i -. 0034 -. 0035 -. 0033 - .0033 -. 0030 -.W28 -. 0025 -_ cm1 -. cm19 -. 0013 -. 0012 -. 0004 --.0004

i=O i=l i=2 i=3 --

0.08Q2 0.0644 0.0391 0.0244 .0320 .0302 .0262 ,0216 .0168 .0166 .0157 .0144

Oil94 .0034 .0033 .0089 .0047 .0049 .0050 .M)50

,.0014 .w17 0020 .0022 -. cm0 -. 0007 -. 0003 0000 -_ 0027 -. 0024 -_ 0020 -. oil16 -. 0040 -. 0036 --.0032 -_ 0028 -. 0048 --.Oil44 -.@040 -. 0036 -. 0052 -, 0049 -. 0044 -. 0040 -. 0052 -_ 0049 -_ w45 -, 0941 --.oQ50 -. 0047 -. 0043 -. w40 -. 0045 -. 0042 --.0#39 -. 0036 -. w37 -. w35 -. 0033 -. Oil30 -_ 0028 -. 0026 -.w24 -. 0023 -.0017 -. 0016 -_ cm15 -, 0014 -_ 0006 -_ 0006 -, wo5 -. 0005

-_

-

-- i=l

--

0.0494 .02% .0162 .W94 .0050 .0018

-.0005 -. 0022 -. Ml34 -.@I42 -. 0046

I: g:‘: -.c041 -. 0034 -.0026 -. 0016 -.aoil5

i=5 i=4

0.2618 .0253 .0648 .0684 .0657 .0602 .0532 .04m .0362 .0270

: “OZ .lw62

-. 0074 -. 0140 -, 0194 --.0234 -. 0258 -. 0266

0.1287 0.0782 -. 0130

0.0489 --.0028 -. 0072 -.M)54 -. 0039 -. 0029 -. cmT22 -. 0016 -. 0012 -.lWIS -.cm4 -.lHMl

.0002

.cHm4

.OOLJ6

.0007

.ooo3

0.0315 .ciu17

0.0209 .@335

-. 0027 -. cml35 --.0030 -.0024 -. 0019 --.oLn5 --.cOll -. MM7 -.cm4 --.0602

.oooI

.oKl3

.0005

.lw36 -007

- _- 0.0305

.0X39

.0151

.0092 oil51 Gil21

-. 0001 -. MI18 -.0+X30 -.0638 -. 0042 -. 0043 -. 0041 -. 0037 -. 0031 -. 0024 -. o!l15 --.rm5

0.0193 .0194

: E .ooYl .ca22 .0002

-.0014

E: g;j -. 0038 -.0039

1: g;; -.0029 -. 0022 -. 6014 -.ooo5

0.0127 0. oQs6 .0156 .0125 .om .0105 .0081 .cQ75 .0049 .0047 .0024 ,0024 .Om4 .0006

-. Doll --.0009 -. 0022 -. 0019 -.0030 -.0026 -.0034 -. 0031 -. 0636 --.@I32 -. 0035 -. 0032 -. W32 --.oozQ -.0026 -.0024 -.0020 -. 0018 -. 0012 -.ooll -.0004 -.Oca4

0 0.0823 .0317 ,016s .00')4 ,004s .0015

-. WOQ I: g;: -. 0047 -. Ml51

I: 2;;

Z: g;; -. w23

I: fg;

1

i 4

i 7

: 10 11

:; 14

:6” 17

-. 0105 -.orJ64 -. w43 -. ml31 -. 0023 -. 0017 --.0012 -. 0008 -. 0304 -.OOOl

.OQoz

.Oca4

.ocKl6

.OKlS

:E 0010

-. 0046 -.0044 -. cm4 -. 0627 -. cm3 -. cm5 -. 0011 -. 0008

I:$$ .culol .ocKJ3 .0005 .cc07 .oooR

6 7

:%I! .0009

I .OnlO

~ :E _-... .OCQQ

cm0 ,000s .W8 .ooo9 .OtHlS

- -

Page 34: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE B.-LOAD DISTRIBUTION DUE TO A UNIT PERTURBATION LO.4D

[ B=l,OOO; C=O; m=36]

(b) Dkkributed perturbation load on stringer j=O between rings i=O and i=l

(a) Concentrated perturbation load on stringer .i=O at ring i=O (c) Shear perturbation load about shear panel (0,O)

Stringer load, pii, at station- Stringer load, pij, at station- Stringer load, pii/L, at strrtion-

i=3

0.2676 .0657 .0232 .0119 .0075 .0053 .0039 .0029

oozu

:E’:

j j

0

4

:

:

i 9

10 11 12

::

;i 17 18

- - - -

.- i=l i-2

0.4001 0.3248 .0323 .0530

MI84 .0162 .w41 .@I81 .0026 .a051 ,001s .0036 .0013 .0026

0010 .0019 .0007 OQ14 .m4 0009 .Om2 .OflO4 .OQOO .OiJOl

-. 0001 -. ix03 -. mO3 -. OW6 -, 0004 -. 0008 -. Ocil5 -. CO10 -. 0006 --.ooll -.ooa -. 0012 -. 0006 -. 0013

i=4 i=5 i=6

O: o”% 0290

.0154

.oos9

: %Y Ml38

.0027 0018

0.1900 .0769 ,033s

: IE: .0086 .0064 .0047 .0033

SE .Om2

--.OOO6 -. Oil13 -. 0019 -. 0023 -. 0027 -. cm?2 -. InI30

0.1637 .0783 .0378 .0216 .0143 .0102 ,0075 ,0056 ,004o .0026 . Oil14

-: IE -. 0015 -, 0022 -. 0027 -. 0032 -. 0034 -. ccl35

i=l i=4 i=5 i=G i=l i-2

0.2061 0.1763 .0752 .0777 .0315 .0359 .0171 .0202 .OllO .0132 ,007s .0094 ,005s .0070

:%i 2% .0020 .0024 .OOlO .0013 .Om2 .OOa3

-. cQO5 -. 0006 -. 0012 -. 0014 -. 0017 -. Oil20 -. 0021 -. 0025 -. M)24 --.ofJzQ -. 0026 -. 0032 -. 0027 -. 0032

0.2447 .0!398 .0262 .0137 .0087 .0061 .0045 .0033 .0024 .0015

: Ei -. OOQ4 -. ooo9 -. 0014 -. 0017 -. 0019 -. 0021 -. 0021

i=3

-0: ;;g -. 0077 -.ooo9

@I15 .0028 ,0035 .0040 .0042 ,0043 ,0042 .0040 .0036 .0031 .0025

0019 .lxIll .0004

i=4 i=5 i=G --

-0.1745 -. 0424 -. 0104 -. 0022

.ooOS

.0023 to032 .0037 .QO40 .0041 .0040 .cQ38 .0035 . Ml30 .0024

:k% .m4

-0.1305 -. 0425 -. 0124 -. 0033

.cm2 . 9019 .0029 .0035 ,003s .0039 ,003s

:%i .w29 .0024 .0017 .OOll .OOQ4

-0. OQ81 -. 0406 -. 0136 -. 0042 -.Mx14

cl015 .0026 .QO32

:%E .0037 .0035 .0032 .0023 .0023 .0017

0010 .0004

-

.- 0.4477

.0173

.0042

.0021

. Cm3

:E .OcQ5 .Om3 .0002 .cmOl

-:E -. oool -.Ocaz -. 0003 -.0003 -. 0003 -_ 0003

i 3

t 6

ii 9

10 11 12 13 14 15 16 17 18

-0.4300 -0.3169 -. 0118 -. 0297 -.0002 -. 0043

.0020 .ooo5

.0930 .0023 .0037 .0032 .0042 .0039 .0045 .0042 .0047 .0045 .0047 .0045 .0046 .0044 .0043 .0041 .0039 . Oil38 .0034 .0032 .0027 Oil26 .0020 0019

OfJ12 .0012 .Ocul4 .OQO4

-

i

- 1 -1 Shear flow, qii, at ststion-

-

-

Shear flow, qiiL, at station- - I- i=2

-__ - i=3 i=4

Shear flow, PiiL, at ststion- - -- i=5 i=O i

0 1

i

5” 6

L 9

10

:::

:“4 15 16 17

i=3 i=4 --

0.0386 -. 0055 -. Oil54 -. 0034

1: g; -. 0012 -.OVOQ -. 0007 -. cw4 -. cm2

-:E .lMOz .ooo3 .OQQ4 .OcQ5 .0005 .OOOG

i=5

0.0132 ,011s .0079 .0049 .ooza

cm2

-2% -‘ 0015 -, 0019 -. 0022 -. ml22 -. 0022 -. 0020 -. 0016 -. 0012 -. 0008 -. 0003

-

-

_- i=O i-l

i=l i=2

0.0658 I-. 0165 -. 0074 -. 0039 -. 0025 -. 0018 -. 0013 -. Gil10 -. ow7 --.ol?OP -. OQ32

:E ,0003 .oca4 .QOO5 .ooo4 .Q306 .ooO6

i=2

0.0329 .0164 .0091

IN52 IN27

116 -.a020 -. 0024

1: 3;;

1: $j;; -. cm9 -. OQ14 -.oiM9 -_ 0003

i=l i=3 i=4 i=5

0.0251 0.0193 0.0149 .0152 ,013s .0124

W88 .0085 .C081 .0051 Oil51 .0050 .0027 .oozs .ooz.s

0010 .OOlI .0012 -. 0002 --.oOl .OOOO -. 0012 -. 0010 -.oco9 --.WlS -. 0017 -. 0316 -. 0023 -. 0021 -. 0020 -. 0025 -. 0024 -. 0022 -. 0026 -. 0024 -. 0023 -. 0024 -. 0023 -. 0022 -. 0022 -. 0021 -. 0020 -. 0018 -. 0018 -. 0017 -. w14 -. cnl13 -. cm3 -.wOS -.0038 --.OiMS -. 0003 -. OOQ3 -. OOQ3

--

-

0.1879 .0479 .0715 ,071s .C678 .0617 ,032 ,045s .0367 .0273 .0179 ,008s .OQOl

-. 0076 -. 0144 -. 0198 -. 0238 - .0263 -. 0271

0.0870 -. 0261 -. 0082 -. 0040 -.0025 -. 0018 -. Oil13 -. 0010 -. Oil07

Z:gg

:E .0003 .0004 .0005

:E .OW6

0.0502

-:E -. Oil37 -. 0024 -. 0017 -. 0013 -. ooo9 -. 0007 -. mo4

-:E .OOOl .om2 .ooo4 .wO5 .@905

:ik%

0 1

;

I4 6 7

i 10

::

:: 15 16 17

0.0499 .0177 .0092 .0051 .@I26 ,000s

-. 0005 -. 0015 -.0022 -. 0026 -. OmrJ -. 0028 -. W28 -. 0025 -. 0020 -. 0015 -. 0010 -. ooo3

0.02% 0159

:OWO .0052 .0027

0010 -. OOQ3 -. 0012

0.0377 .0170 .0092 .CQ52 .0027

-:E -. 0014 --.oozQ -. GQlY -. cc?5 -. 0023 -.OO27 ’ --.0026 -. 0028 -. 0026 1: g;g

I: 2; 1: g9” -. 0015 -. 0014 -. 0009 -.OCQQ -. lMO3 --.OcQ3

0.0219

:ili: .0051 ,002s .OOll

-. OOQ2 -.oOll -. W18 -. 0022 -. 0024 -. 0025 -. 0024 -. 0022 -. 0018 -_ 0014 --.OOOS -. 0003

0.0169 .0131 .0083 .0050 .0028 .OOll

-. oool -. 0010 -. 0016 -. ccl21 -. 0023 -. Ml24 -. 0023 -. Oil20 -. 0017 -. 0013 -. 0008 -. 0003

0.0523 0.0435 .0177 .0174 .0092 .0092

lM51 .0052 Oil26 .0026

.OOQS .OCGS -. 0006 -. 0005 -. 0015 -. 0014 --.9022 -.0021 -. 0027 -. 0026 -. oa29 -. w2s -. 0029 -. 0023 -. 0028 -. 0027 -. Oil25 -. IX?24 -_ 0021 -_ 0020 -. 0016 -. 0015 -. 0010 -. ooo9 -.fMO3 -. 0003

-

Page 35: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE S.-LOAD DISTRIB~TIOS DUE TO A UNIT PERTURBATION LOAD

H = x; c = 2x10:; II) = 361

(a) Concentrated perturbation load on stringer j= 0 at ring (b) Distributed perturbation load on stringer j=O i=o between rings i=O and i= 1 (c) Shear perturbation load about shear panel (0,O)

- Stringer load, pit/L, at station- Stringer load, pii, at station- I Strincw lond, pii, at stntion-

i=O

-- i=5

-0.0091 -, lmO3 -. Mm4 -.om5

r:“,: -.c@93 -.oool

;g

.lnw3

.omi

.0003

.Ow3

.m!z

.OOOl

.omo

- - i=3 i=4

0.0461 0.0435 .0459 ,0429 .0430 .0413 ,0395 .0396 .0350 .0352 .0300 .0312 .0250 .0267 .0200 .0220 .0152 .0172 .0107 .0125 .0065 .0079 .0026 .0035

-.ooQ9 -.OW5 -.0040 -.0040 -.OO65 -.0070 -.0085 -.0095 -. 0100 -. 0112 -. OlOY -. 0123 -. 0112 -.0127

-

i=l i=2 i=5 I -/- i=5 i=l i=2 i=3 j=,j i-3 i=6 i=4

--“:g;

1: g; -. 0013 -. co10 --.ow6 --.oLm

.cKQl

.ooo4

:2:

:%i .Mm

:E2’ . 0001

/_ , i=4

(1. 0.33 0. 0505 0.0447 0645 .0481 .o441

.0512 .0452 .0421 ,0357 .0401 .039il ,0293 .a343 .0351 .0222 .0285 ,030; ,016G 0231 .0260 ,012l ,018l .0211 .0083 ,0134 .OlM .0052 .0092 .Olli

0024 .0053 .0073 ml02 .0018 .@I31

-_ OOli -. 0012 --.woi -. 0032 - .0033 -. co40 - .0044 - 0060 -. oc68 -_ 0053 --.Wi7 -.oom -.w59 -.W89 -. 0107 -. oil62 -, 0097 -. 0117 -.om4 -_ 0099 -.OlZO

i=6

0.0430 0.0423 .0425 .0418 .0410 .0404 .0355 .0382 .0352 !%52 .0313 .0316 .0270 .0274 .0224 .0229 .0176 .0132 .0128 .0134 .9081 .0096 .0037 w40

-.Kxl4 -.ooo2 --.w40 -. 0040 -_ 0071 -. 0073 -.0096 -. WY9 -_ 0114 -. 0118 -. 012G -. 0130 - .0130 -. 0134

I- -- .- 0.0499

ORlG .0523 .0339 .0233 .0165 .0117 .W80

w51 .wzs .oorm

-.wo5 -.CQli -. 0025 -.0032 -.0036 -.@I39 -. 0041 -.0042

0. OEi6 .0500

:% .0331 .02M .0206 .0156 .0113

co74 .0040 .OOlO

-. 0015 -.0037 -. 0054 -.0067 -. 0076 -.M32 -.0084

0.0426 .0421 .0406 .0333 .0352 ,031.i .02i3 ,022; .0180 .0131 .Om4 .0039

-.cm3 -.0040 - OOi2 -. OOY8

I: Kl -. 0132

0.1941 Oi43 0353

.02Ul

.lJ129 0087 0058

,003R .0022

0010 .OOOl

-_ 0006 -_ 0011 -. 0014 --.0016 -_ 001x --.Oil19 -. co20 -_ 0020

-

0.0067 -.0118 -. 0100 -.OO@l -.0030 -.ooo8

.cm5

.0014

.OQ19 w21

.0021

. OOld

.0017

.0014

.0011

.cKls

.a004

.ooOl

2;; -.cmP -.C032 -. 0025

::g;

2% .0910 .0013 .0915 .0015 .0014 .w12 .cunl9 .ooO6 .0002

-0. 1182 -. 0348 -.wsa

:E .0052 .0052 .0045 .0035 .@I24

cm4 .oc05

-. oool -.Om5 -.w7 -.lm6 -.Mx)z -.0002

; 4 5

t 8 9

:7 12 13

:: 16 Ii 18

.0381

.0352

.031G

.0276

.023t

.0134

.0135 OQSi

.0041 -.cm2 --.0040 -.0X3 -. om -. 0120 -. 0132 -. 0136

-

i

-

0 1 2 3 4 5 6

i

1: 11 12 13 14

:i li .-

Shear flew, pi, at station- Shear flow, qijL, at station- Shear flou-, 9iiL, at station-

i=3

0. Do55 .Ob37 .0029 .ocm

-.oM19 -. 0022

-:iEi -. 0027 --.0022 -. 0016 -. Ix10 --.wOP

2% .ooll .0015 ,0017

cm8

0. coos .m7 .lm5 .0903

-4% 7% -.ooO6 -.lwx -.ooo4 -.ooo3 --.Om2

:E .Mm3 .OOQ4

:Ei

-

.-

-

-

-

-

--

-

i=O i=2

O: iE . cxl40

-.002!3 -. 0056 -.OtXO -.9053 -.w40 --.@I27 -.0014 --.OOQ3

.ooo5

. 0010

.Oo12

.cnm

.OOll .@I10 .cm9 .WO8

i=4 _-

i=O

--I I I

i i-5

.__ -- 0.0002 .0007 ( / :’

-

.- i=O

0.305Y ISi?

: OSCF o4ti4 WOF

.0033 -. 0034 -.0159 -_ 0204 -_ 0224 -. 0226 --.0215 -.(I194 -. OlFR --.0133 -.wsi -. non9 - 0020

- __-.

i=l

I). OAiY Oii8 OR19 0433

: E oom

-. 00.5 -. 0118 -, n1tio -, 0193 -_ 0190 -. 0184 -. OlFli --.0139 -. Ul0.f -, 00F4 --.lM22

- i-3

0.0029 .Km

oov9 .OllO .0102 .ccsc .0051 .OQ21

-. 0009 -.0034 - .0054 -_ 0066 -. 0072 --.OQ70 - .0062 -. 0049 [email protected] -.oOll

i=l

0.1233 -. 0016 -. 0246 -. 0234 -. 0163 -. oil98 -.0038

.oilos

.0039 cm55

.w59 .0052 .0038

:tE -. 0016 -. 0030 -. 0033 -. 0041

i=4 i=j i=2

0.0039 .0203 ,0!263 .0249 ,a199 .0135 .0071 .OOll

-. 0040 -, MIS0 -, 0109 -, 0123 -, 0130 -, 0123 ~:&!g -. 005; -. 0018

i=2

0.0058

:L% Ol&

,014s .0109 . W8G

w22 -. 0013 - ,005l -.@I76 -. Oil91 --.CC98 -.0095 -.W83 -.OCG5 -. 0041 -_ ml14

i=4

0. oil05 .0013 .oom .0023 .0023

w20 no14

.WOi -.oocl -.WOi -. 0012 -. 0016 -. 0018 -. 0018 -. WE -.0013 -.OOOB -.OOG

i=l

-0. Ml38 .0378 .0423 .0355 ,025i .0159 .0069

-.ooo7

1: !E

1: g;: -. Od2 -. 0151 -. 0129 -.009x -.@I62 -. 0021

i=3

0.0013 .0043

0061 .W69 : (g;;

,003s W18

-.om -. 0020 -.0034 -. 0044 -.co49 -. 004Y -. 0043 -_ 0034 -, 0021 -.WOi

0.7239 -. 0397

.0301

.0477

.0467

.0386

.0281 ,017s . ooss .0018

-. 0030 - .0058 -.0069 --.0067 -.OQ57 -.0044 -. 0032 --.@I23 -.wm

0. C016 . @I15 .caoB

SE --.&l-23 --.0026 -.CQ27

I: g;: -.M)19 -. 0014 --.ow8 -.oGQ2

.Om3

:Ei .(Mll

0. cm3 M)25

.0036

.w41

.003Y

.0033 cm22 0010

-:Ei -. 0021 -. OQ2i -.0030 -.0030

Z: $j;: -. 0014 -.OW5

0.0004 .OOlO .0016

W18 . cm8 .0016 .0012

:E -.lm5 -. 0010

1: g:; -. 0915 -. On13 -. 0010 --.m7 -.OGQ2

0.2250 .l334 .0806 .0467 .0234 .cQt%

-.004Y -. 0129 -. 0180 -.02UB -. 02li

1: g;; -. 0170 -. 0135 -. 0102 -. W62 --.WZl

.oolO

. Oil12

.0012

.ooll

.ccc.s

.0004 /

.oaM -.004X3 --.occF -.ooo9 ’ -.oolO -.nOlO -.ow9 ! --.OWi -.WO6 -.CCtO? i

-I -

Page 36: T, NATIONAL ’ ” -. .> ,. ,. :

co t9 i

TABLE 7.-LOAD l)TS’L’RTBU’lTOS DUE ‘I’0 A UXIT PERTURBATIOS LOAD

(a) Concentrated perturbation load 011 stringer j=O at ring i=O

[B=30; c=2x1oz; rn=Xfi]

(b) Distribrltcd perturbation load on stringer j=O between rings i=O and i= 1 (c) Shear perturbation lozd about. shear panel (0,O)

I Strinwr load, pij/L, at station- d j -,- I I / 2

i=5 1 i=F 1 i=O i=l ( i=2 is3 i=4 I ~- __-

0 0. 54nnl 0.1521 0.0854 0. oG3i 0.0541 0.0491 0.0463 1 0 .0870 .0713 0589 .0519 .04x .0454

0 .03ii .0489 .0485 .0462 0443 .04m .OZll .0332 .0380 .0393 .0394 .0391 .0137 .0237 .0196 w20 ,034l .0343

0097 .0176 .0232 ,026; .n288 .03w .0070 .0133 .0180 .0214 ,023li .0251 .0051 .omQ ,013s . Ol6i ,018s .0203

Oil35 .0071 0100 .0125 ,0143 .0156 .0022 .0046 .w68 .0086 OlOQ .Olll .ooll .CQ25 Ml39 0051 .OO61 .0068 .Wl .06 ,0013 .0019 ,I)024 .0029

-.om3 -.0010 -.oOll -. 0010 -.ows --.WOi -.OQ15 --.Om5 --.0031 -. 0035 -. 003i -. 00311 -. 0021 -. 0036 --.0048 -. 0056 -. 0062 -. 0066 -. 0025 --.0046 --.OWd -. OOi3 -. 0081 -. 0087 --.0028 -.0052 -.CQil -.0085 --.0095 -. 0103 -.M30 -.0057 -.OO7i - 0092 -_ 0104 -. 0112 --.OiM -.0058 -.0079 1 -: 04O.i -_ 0107 -. 0116

I- L--L-~- /__ I I I

i=l i=5 i=G ix2 --

is3 i=4 _______

-0.2233 -0.0331 -0.0081 -0.002Y - ,03R4 - .0329 -.a143 -.0064 - ,0062 -. 0148 -, 0110 -. 0065

.OOll -. on59 --.OQ64 -. 0048 ,0037 --.Wl? -.W30 -.0029 .OiJ47 .ooO6 -. oow -. 0013 .w49 ,001s .coO4 -. Owl .004i ,002G .0014 .0007

Ml43 .003n .w20 MI12 .0036 .,I031 .OO22 .0015

0021) .0031 .0024 .0017 .I~022 .0030 .cQ24 .0018 .0016 002i .0022 .0017

0011 .0023 .nn2n .0015 OOOi .0019 ,0016 .0013

.wO4 .0014 .0012 .otml9

.noa ,000s owi .OQO6

.ooon .ow3 .Om2 .0002

-.

1 3 4

I- 0. 2853

0GoG 02lli

.0112 0071 004!)

: 0035 .0025 .Mlli

:Kit

-:EE -_ 0008 -. 0011 -_ 0013 -_ 0014 -. O015 -_ OOlli

n.112i ,070" .0449 .n23o

OlYl .0139 .I~103

OOi5

:E ,0018 .OQO3

-.ooo9 - 0020 -, 00!29 -_ 0036 -. 0041 - 0044 -. Irn45

0. ni31 Of??5

.04!lo

.03lil w70 0206

: 0158 .OllY

lx)86 : 0058 .0032

on09 -: 0011 - .0028 - 0042 -.,x154 -. Oil62 - WGi - oml

0. 0584 .a551 .04i4 .0388 .0313 .n251 (0198 .0153

nil3 noii

: 0045

-: %I; -.w33 -. 0052 -. 006i -. (M7R -. eon:, -_ 008i

0. 0514 .0496 .n452 .0394 .0334 ,027s

omi 01% 0134

: 0094 .005(i

-ig ’ 1

--.on59 -. Wii --.0091 -. 0099 -. 0101

0. 0476 .0%5

0435 : 0393 .0345

0294 : 0244

OL9G

: IE (0065 ,002i

-.wo8 - ,003s -. 0364 -. 0084 -. nil99 - 0108 -. 0112

-0.0013 -.WdZ -.0037 -.0032 -.0022 -. WI2 -$g;

.ooos

.oOll

.OQlZ OQl3

.cKllS

.OOll 0010

.Oco7

.0004 , .wo2

-0.0007 -.w17 -.oon -. 0921 -.onKi -. 0010

-:E .m4 .lMO7 .oooQ

:E .ooo9 .ow7

:Ei .wOl

0

f

: 5 6 i

i 10 11 12 13 14 15 10 17 18

i 6 i x 9

ir 12 13 14 15 lfi li 1X

’ I 1

/ j i--L{; - j

I-.- 0 1 2

2 5 6 i

i 10 11 12 13

ii 16

0. 52il - .0254

04i3 ,059s ,057B .om2 .0108 .0309

11214 .a129 ,005;

-. oool -. 0046 -. OOi8 -_ 0100

0.1669

1: g 2 -. 0196 -.0126 -. OK2 -_ 0031

.owQ

.0022

.0034 ou3Y oQ3i

.002?l

.0018

.oo% --.woG -. 0016 -. 0022 -_ 0024

0.0390 .0140

-. 0046 -. Ml84 --.w80 --.oaGG -_ 0051 -. 0038 -.0026 -. 0016 -.owi

.woo

.OilO6

.OOlO

.0013

.0015

.0016 OOli OQli

0.0147 .0095 . MI17

-.oozs --.w43 -. 0045 -. 0040 -.w34 -. 0027 -.no2n -. 0013 --.WOG

.ouno

.wo5 0010

.0013 WlG

.0018 ,001s

O: E iNIl6

.WOl -. 0010

0.0334 0: “o;!j; 0.0048 0.0025 il. 0014 .0491 ,011s ml38 ,037s .0236 .0141 :Ei .0052 .0256 0189 .0128 . cm4 .0054 .0156 .0130 .W98 0069 ,004i

co77 .@I75 .OQ63 : 0048 .0035 .0015 .0027 0029 .0026 .w21

-.w33 -. co12 .OOW .ooo5 no06 --.0%9 -. 0042 -.9024 -. 0913 -.owi -. 0093 -. 0064 --.@I42 -. W2i -. 0018 -. 0108 -. W3i -. 0113

1: gg -. 0054 - .0025 --.0060 -_ tm42 - .0030

-.OllO -. Oil34 --.OOFl -. 0043 -. 0031 -. OlOQ -. 007i -.00x -. 0041 -. On30 -. 0085 -.0066 -. 0049 -. 0026 -.0064 Z:E% -. W3i I:$? -. 0020 -.0040 -. 001; --.a013 -, :x)13 -. co11 1:

g$; -_ OW6 -.w4

‘- ’

il. 08G3 : ,“~I;

,02X .0155

0.0198

: E .0223

0144 : IX177

0. ooi3 .016X .0185 ,015i

il. WA5 no8Y 0110

: 0104 .0083 .0056 .0028 .0003

-. 0018 -.0035 -_ W4G -_ 0052 -. 0053 -. 0050 -. 0043 -. 0033 -. 0020 --.WOG

.0114 OOG9

: 0029 -_ OOiI5 --.0032 - .0052 -. 0065 --.OOil -. 0071 -. 006G

I: gj;; - on27 -_ 0009

-. 0016 -. 0018 -. GIN8 -. 0015

-:% --.0005 --.GQOl

.coO2

.rm5

.cm7

.fKm 0010 0010

-: g;; -_ 0051 -_ 0088 -_ 0112 -_ 0125 -. 0128 -, 0123 --.Olll -.0093 - 0070 -. 0043 -. 0015

-.0029 -. w27 -. ofm -. 0018 -. 0013 -.0007

-2% .ooOS .OOll .0014

OOlG Cal6

0022 -: 0021 -. 0054 -. Ml78 -. 0092 -.0098 -. 0097 -. 0089 -. 0075 - .005i - ,003s -. oil12

-. 0109 -. 0131 -. 0141 -. 0142 -. 0134 -. 0120 -.oos?l -. Wi4 -. 0046 -. 0016

-. 0010 -. 0022 -. Ml31 --.0036 -. 003i

-. 0114 -, 0122 -, 0126 -_ 012i

Page 37: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 8.-LOAD DISTRIBUTIOS DUE TO A USIT PERTURB4TIOS L04D [I?=100; C=ZXlO?; rn=36]

(a) Concentrated perturbation load on stringerj=O at ring (b) Distributed perturbation load on stringerj=O between i=o riugs i=O and i= 1 (c) Shear perturbation load about shear panel (0,O)

-

_-

I

-

Stringer land, pij/L, at station- Stringer land, pij, at station- Stringer land, Pii, st stntion- T

i=l ) i=2 j i=3 j i=4 I- -.

I -

_-

-

-

--

-

-

_-

- -

-

,

-

- i=l

o%z .0241 .0124 .ODi9 .0055 .0041 .0030 .0021 .0014 .cw7 .MM2

-.Om4 -.oms -. 0012 -. 0015 -. 0018 -.cm9 -.cmo

i=Z

O: t% .0391 .0225 .0149

2% ,005s .0042 .ca28 .0015 .ccml4

-.W6 -. 0015 -. 0023

I: g;; -.0036 -.ow

i=3

0.1062 .07&l .0469 .0297 .0266 .0151 .0113 .OQ84 .9061

5%: .ooo6

2%: 1: ;g ::$Jj$ -. 0052

i=2 i=3 i=5 i=6 i=j / i=fj i=4

-0.0214 -. 0227 -. 0133

2%

-:E

:%il .0027) . c028 .cms

2%

:L::

:EJi

(- j=j i=fj

O.Oi53 .0645 .0485

035i 0267

.0204

.0157

.0119 00%

.0059

.0033

.OOll

0. O&IS .0589 .0480 .03ii .0295 .0231 .0181 ,013s .0102 .0070 .0040

-: II::: -. 0010 --.CQ2i -_ 0042 1: pxs:; -_ 0054 -. 0062 - .0063 -. OOi2 -.0068 -.OOiS -.0070 i -.WBO

-T. ;;a,6

-_ 0035 .0914 .0032 .0041 .0045 .0046 .0045 .0042 .0039 .0034

:%“2 .0019 .0013

:zi

-- 0.0825

,067s .0483 .0342 .0250 .0189 .0144 ,010s .0079 too63 .0030 .ow9

-0.0485 -. 0335 -. 0147 -.0957 -.0015

%J

ca31

:iE .0032 .cmQ .0025 .oozQ .0015 .ooo9 .cHIO3

--o: ;:g -. 0107

::gi

-:Z% .0015

:ZlZ .cw .0024 . lM22 .0019

2% .0007 .lm2

-0. Ml55 -. 0097

-:E -.00x4 -.lxJll

.0002

. 0010

.0016

.0019

.0020

.oozil

. 0019 cm7

.0014 0010

.0006

.0002

0.0611 ,0566 .0475 .03R3 .0306 .0243 .0191 .0147 .0109

cQ75 .0044

Oil15 -_ 0010 -_ 0032 -. 0050 -. W65 -.WiB -.W83 --.@385

0.3600 .0428 .0127

oc63 .0040 ,002s :

5% 1 .OOll .0007

2% i -.Mx)Z

I:$$ I --.0008 ! -.oao9 : -. 0010 -.OOlO

“: A% .0324 .Olii I .0115

0081

:!2 i .0032 .0021

:ik /

z:z ’ I:$$; / -_ 0026 -.0028 -. 0028

0.0932 .0714 .04i4 .0321 .0229 .0170 .0129 .0097 .0070 .0047

0026 .OQOS

--.0009

?E -. 0045 -_ 0052 -. 0057 -_ 0058

-0.1198 -. 0433 -. 0126 --.cQ34

.ooOl ,001s .c028

:E:: oil39

.@I38

:k% ,002s .0023 .0017 .OOlO .ooo3

0.1268 .0779 .0431 .0264 ;

Oli9 .0129 I

Ml96 0072

.0051

.0034

2% -. 0007 -_ 0018 --.OilZi -. 0035 -.0040 -.m43 --.0044 (

- - I

-

-

--

- -

Shear Row, qii. at stntion- 1 Shw flow. q,jL, :a stniion- j I-- i=O

_~ - i=4

.-

“5% -. 0010 -. 0035 -. 0038 -.lw34 -. 0023

3% -. 9012 --.Om7

-:iE .m‘l .0007

:E . 0012 .0012

-

-

_-

-

i=l iz3 i=5

0

4

i 5 6 i

: 10 11 12

:: 15 16 li

_-

i+j

0.0119 .0191

016a .0123

OOi9 .w41

cm1 -. 0013 -. 0031 -.0043 -.wJ50 -. 0053

7: :4”; -.0040

1: g;; -.ow)6

- -__- i=4 j=j

__- 0.0064 0.0041

.0129 .CQ89

.0129 ,009s

.0102 .0083

.0070 .0060 M)40 .0036

.0014 .0015 -.Oca7 -.OcQ3 -, W23 -. 0018 -. CO35 -.&I28 -_ 0042 -. 0035 --.c045 -. 0038 -.0044 -_ W38 -. 0041 -_ 0035 -.cw -.0030 -. 0026 --.@I22 -. 0016 -. 0014 --.wO6 -. 0005

-

---

j=2 1 i-3 i=4 j=5

_-.

0.0168 0. omo 0. 0052 .0234 0158 ,010s .0191 .0148 .0113 .0133 .0112 .0092

0082 OOi4 IOU65 .0041 .iM40 .0038

0008 .0012 .0014 -. IN16 -_ 0010 -_ 0405 --.0035 -.OQZi -.w20 -. 0048 --.0039 -_ 0031 -. 0055 -. 0046 - .0038 -_ 0058 -.oQ49 --.I%41 -_ 0056 -.0048 -_ 0041 -. 0051 --.0044 - ,003s -, 0043 -.003i -. W32 -. 0033 -_ 0028 -. 0024 -. 0020 -. 0018 -, 0015 -. 0007 -. 0006 -. 0005

-- i==l

0.0510 .0409 .0259 .0157 .0087 .@I36

2% -. 0051 -.cu-J64 -. 9072 -.0074 -. 0071 -.0064 -.oow -.@I41 -. 0625 -.oooo

-

_-

-

i=2

0.0233 ,0283 .0214 .0142 .0x35 .0040 .CW6

-.0020 -.cKJ40 -. 0053 -.0060 -. 0063 -.0061 -. 0055 --.ca7 -. 0035 -. 0022 -.MKli

i=2

0.0703 -.OOlO

1: EIJ: --.0064 -.0048 -. 0036 -.OOZi -. 0019 -. 0012 -.OQO6 -.OOOl

.cm3

:E .&I12 .0013

cm4 .0015

i=O i=l

0.14w 0.0814 .0543 .0472 .0289 ,055 .0162 .0161 .0082 .0086 .CQ26 .0032

-. 0015 --.ocoi --.oil45 --.0036 -. 0066 -.005i -.0080 -. OQil -.@I87 -.oOiS -. 0089 -.0080 -, MS5 -.OOii -, 0076 -.0069 -.0064 -_ 0058 -.&MS -.cc44 --.0030 -. 0027 -.lmlO -.ooOY

i=O

0.1601 - .0367 -_ 0217 -. 0126 -. 0078 -. 004i -. Cnl25

-:%i . cm2 .0016 .0016 . cm5 .ooll .OQO7 .m2

-.OOOl -.0004 -.cw5

0.0337 .0065

-.w43 -.0058

Z:jgi -.c033

::?g; -. 0013 -.iMOS

-GE

:E% 0011

:% .cm4’

0.0104 .wxii .0005

I::2 -.oozi -.0024 -.cmo -. 0015 --.ooll -.cnM7

-:E .m3 .0006 .0098

:E . 0010

0 0.3688 : .0586 OQ20

3 I .0657 , .0630 4

i

; 9

10 11 12

::

:i li 18

.0566

.6485

.0395

.0303

.I1213 ,012s .0050

-. WlQ -.0077 -. 0125 -.0162 -. 0189 -. 019i -. 0202

I -

-

-

0.0352 .0343

: II:% 008i om9

.0002 -.0025 -_ 0045 -.W58 - .0066

3% -. 0060 -.oml --.W38 -. 0024 -. 0008

__- -

O: 2; .0286

:% .@I28

-.cm -. 0043 -.ooffl -. 0078 -. 0085 --.0087 -.0083 -. 0074 -. 0062 -. 0047 -. 0029 --.oolO

- - -

Page 38: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE O.--LOAD DISTRIBUTIOS DTJE TO .4 USIT PERTURBXTION LOrlD

[B=300; C=ZX102; m=36]

(b) Distributed perturbation load on stringer j=O between rings i=O and i=l

-

(a) Concentrated Derturbation load oo stringer .j= 0 at, - ” ring i=O (c) Shear perturbation load about shear panel (0,O)

Stringer load, pii, at station- Stringer load, &/L, at station- -

i I- Stringer load, pij, at station-

- - j=j i=3

j i=6

- - -

_-

-

-

.-

-

- i=O i=l ( i=2 i=4 i=l i=2 i=3 i=6 i=l i=2 i=5 i=4

0.2038 0.1549 .0757 .0785 ,031s .0390 .0172 .0227 .Olll .0150

OOi9 .0108 ,605s .0080 .I)043 .0059 .0031 .0042

Oil20 .@I28 0010 . oOi5

.0002 .0003 -.OQO5 -. m7 -. 0012 -. 0016 -. 0017 -. 0023 -. CO22 -. 0029 - .0025 -.OQ33 -. 0027 -. 0036 -. 0027 -. 0037

i=5 -_

0.1234

: % .0271 .0185 .0134 .0160 .0074 .0054

:E .Oo95

-. 0008 -. 0019 -. 0028 -. 0036 -.0041 -. 0044 -. 0046

i=3 i=4

-0.1276 -0.0759 -. 0427 -. 0383 -, 0125 -. 0143 -. 0033 - ,0049

.0002 -. 0008

.0019 .0012 on29 .W23

.0034 .0030 ,003s .0034 .0039 .0035 ,003s .0035 .CKI36 ,cO34 .0033 .0031 .0029 .0027 .0023 .0022 .0017 .0016 .OOll 0010 .0004 .0003

-- 0.3354 0.2366

.0506

.0149 :h%f

.0074

.0046 :%i

:bE .@064 . cQ47

:bi .0035 .0025

,000s .0016

:Ei ,900s .9992

-.0002 --.cm4 -.!Mo5 -.OQlO

I:$$ r:;:; -.OQlO --.oQ20 -.ooll -. 0022 --.OOlZ -.0922

0

i 3

‘i

f 8 9

:‘:

:i 14 15

:; 18

-

j I

0.1756

: % .0201 .0132 .0094

:%i

::“2: .0013 .9Nl3

-. 0006 -. 0014 -. cfJ20 -. 0025 -.0029 -. 0031 -. OQ32 --

0.1370 .0781 .0417 .0250 ,016s .0121 .OOW .0067 . W48 .0032 .0017 .09Q4

-2%

I: ;3”; -.w37 -. 0040 -. 0041

0.1116

: Z; 0290

.0201

.0147 0110

.0082

.0059

.0039

.0021

.9QO6 -. 0008 -. 9021 -. 0031 -. Ml39 -.0045 -. 0048 -. 0050

0.0945 .0713 .0472 .0320 .0228 .0170 ,012s ,0096 .0070 ,0046 .0026 .OQO7

-. 0009 -. 0023 -. w35 -. 0045 -.OQ52 -, 0056 -. 0057

0. 4108 .0286

: 8% .0023 .0016 .OO12

0009 .0006 .cal4

0002 . 0000

-. 0001 -. 0003 -. 0004 -. 0905 - .0005 -. 0006 -. 0006

0.2820 .0628 .0213 .0109 .0069 ,004s

: %i .0018 .0012 .0006

0001 -. 0004 -. 0007 -. 0011 -_ 0014

X: g:; -. 0017

0.1026 .0733 .0464 .0305 .0215 ,015s .0119 .0089

:ZE .0024 .6006

-. 0009 -. 0022 -. 0033 -. 0042 - ,004s -. 0052 -. 0054

-0. 3817 -. 0195 -. 0016

.0017

.0031 ,003s .0043 .0046 .0046 .0045 .0043 .9040 .0035 .0029 .0024 .0018 .OOlL .0004

-0.2188 -. 3402 -. 0084 -. 0012

% : 0034 .0039 .0042 .0042 .0042

2%: .0031 .0025 .0019

0011 .0004

-0.0462

1: ;;;; -. 0058 -. 0016

.0006

2%~ .9030 .0032 .0932 .9631

: lE .0020

2%: .0003

-0.0288 -. 0256 -. 0138 -. 0063 -. 0022

.OOOO . w14 .cil22 .9027 .0029 .0030 .0029 .0026 .QQ23

2%

:Ei

Shear Row, pii, at station- 1 Shear flow, qiiL, at station- Shear flow, qijL, at station-

i=3

0.0489

Z%i -. 0054 -. 0039 -. 0029 -.0022 -. 0016 -. 0012 --.OOOS -.0004 -.WOl

.Oool

.0004 ON6 oM)7

2%: 0010

- - --

--

-

i i=O i=l

0.2639 0.12i7 .0272 -. 0351 .0663 -. 0144 .0694 -. W76 .0659 -. 0047 ,059s -. 0030 .0521 -.O’J18 .0434 -.oQo9

. . 0343 -. 0003 .0251 .0002 .oml .0004

OOi3 .OQO6 -. 0006 .0006 -. 0077 .0006 -. 0137 .0005 -. 0185 .0004 -. 022u .0003 -. 0241 .0002 -. 0248 .0002

j=:, ---

0.0209 .O635

-. OQ27 -. Ml35 -. 0030 --.0024 --.w19 -. 0015 --.Ollll -. 0007 -.cQO4 -.a062

.CHXU

.0003

. oDo5

.0006

.QOa7 ,009s .OiKIS

i=o

0.0892 .0320 .0168 .0094

: FE -. 0010 -. 0027 -. 0040 -.0048 -. 0052 -. 0052 -. 0050 -. 6045 -. 0037 -. 0023 -. 0017 -. OOUB

- -

_- i=O i=l i=4 i=l

-__

0.0644 .0302

: K2 .0049 .a017

Z%i -. 0036 --.0044 -. 0049 -. 0049 -. 0047

2%: -. 0026 -. 0616 -. OWF

i=4 i=5 ___-__

i=2

0.0782 -.0130 -. 0105 -. 0064 --.0043 -. 0031 - 0023 -. 0017 -. 0012 -. 0008 -. 0004 --.OQOl

0002 .0004 .OW6

: o”% 0010 0010

i=4

0.0315 cQl7

-. 0046 -. 0044 -. 0034 --.0027 --.Q920 -. 0015 -. 0011 -.QOOS -.cm4 -.OOOl

. 0001

.cmO3

2% .OQOS ,000s .ow9

i=2

0.0494 0.0305 .0284 .0239 .0162 .0151 .0094 .0092 .lxl50 .0051 .0018 .0021

-.c005 --.60+X -. 6022 -. 0018 -. 0934 --.0030 -. 0042 -. 9038 -. oQ46 -. 0042 -. OQ47 -.0043 -. w45 -. cHl41 -. 0041 -. 0637 -.0034 -. 0031 -.CQ26 --.cG?4 -_ 0016 -. 9015 -. Oca5 --.Om5

i=3

0.0193 .0194

: t% .0050 .0022 .0002

-. 0014 --.0026 -.0034

I: ;g

I: gg

I: ;;; --.0014 -.OOO5

i=5

“:f% .0105 .0075 .0047 .0024 .OQO6

3E -, 0026 -_ 0031 -. 0032 -. 0032 -. 0029 -.0024 -. 0018 -. 0011 -.OQO4

i=2

0.0391 .0262 .0157 .0093 .0050 .0020

-. 0003 -. 0020

I: g;;

I: $2; -. 0043

1: g; -. 0024 -. 0015 -.OQO5

i=3

0.0244

: :;:4” . Oil89 .0050 .0022 .OOOO

-. 0016 -. 0028 -. 0036 -. 0040 -. Oil41 -. 0040 -. 0036 -. 0030 -. 0023 -. 0014 -. Oil05

_- 0 i 4" 5 7" i

:: 12 13 14 15 16 17

0.0823 .0317 .0163 .0094 ,004s .0015

3%: --.0039 -. Ml47 -. 0051 -. 0052 -. Oil49

1: g3”: --.0628 -. 0017 -.0096

0.0127 .0156 .0120 .0081 .0049 .0024 .0004

-. 0011 -.0022

1: g;;

z: g;; -_ 6032 -. 0026 -. 0020 --.0012 -.ooo4

0

i 3 4

: 7

i 10 11 12 13 14

:i li

Page 39: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE lO.-LOAD DISTRIBUTIOS DUE TO A USIT PERTURBATION LOAD

[O = 1,000; C = 2 X 102; m = 361

(a) Concentrat*ed perturbation load on stringer j=O at ring (b) Distributed perturbation load on stringer j=O between i=o rings i=O and i=l (c) Shear perturbation load about shear panel (0,O)

I Stringer load, pii. at stntion- Stringer load, piilL, at station- Stringer load, pii, at station-

i i=O i=l i=2

I I i=3 j=4 j=j i=6

-- -1 0 0.5000 0.4001 0.3248 0.2676 0.2237 0.1900 c. 1637

; i .0323 .0084 .0530 .0162 .0232 .0657 .0731 .0290 .0338 .0769 .0783 .0378 : i .0041 .0026 .0081 .0051 .0075 Cl19 .0154 .0099 .0187 .0121 .0143 0216

i i .cil18

.0007 2%

.0026 .CQ36 .0053 .0070 .0051

i 0” . .0019 Cal4 4%: . co20 .CQ38 .0027

.0086 .0064 .0102 .0075

.0033 CO47 .0056 .0040 9

:: i .oM)4 .ocQ9 .0013 .OOlS .0022 .0026 .Mx)2 :Zf .cmi .oLmJP .0012 .0014

i .wOO .OOOl .OOO2 .cm2 .0003

:;

:i i

-.Om3 -.ooOl -.Mx13 -.ooO6 -.0004 -.ooOS -.0005 --.0910 --.0006 -.0013 -.OOOD -.0015

:,” i

-.0004 -.0035 -.OOlO -.lnlOE -.CHl15 --.cQ12 --.0015 --.0019 --.0019 -.9023 --.0022 -.002i

18 i -.0006 -.0+06 -.OfJll --.0012 --.0018 -.OOli -.0022 --.0024 -.0027 -.0029 --.0032 -.9034 -. 0906 --.0013 -.0018 --.0024 -.0030 -.0035

Sheitr flow, g;iL. at stntion- j - --

i=O i=l i=2 i=3 i=4 i=5 .-______~-~

0 0.0499 0.0377 0.0286 0.0219 0.0169 0.0132

:: .0177 .@I92 .0092 OliO .0159 .0090 .0145 .0087 .0131 .0083 ,011s .oQ79

i .0026 .0051 .0052 .0027 .0052 .0027 .0051 ,602s .0050 .0028 .0049 .0028 5 .ooo8 .cQo9 . 0010 .ooll .OOll .0012 7” --.0005 -. cm15 -.0004 -. 0014 -.ow3 -.0012 -. -.ooll 0002 -. --.llOlO 0001 -.ooo9 0000

9” -.oon -.0026 1: g;g -.0023 -.cQ19 -. - .0022 0018 -. -.cQ21 0016 -. -. 0015 0019 :: -.0029 -.0029 -.CQ27 --.W28 -. -. 0026 0026 -.CQ24 -.OQ25 -.oQ23 -. 0024 -. --.0022 0022

;I --.0028 -.0025 -.0020 -. --.0020 -.0024 0026 -. -. -. 0025 0022 0019 -.W24 -. - .0022 0018 -. -. - .0017 0023 0020 --.0022 -. - .0020 0016 :“G --.0015 --.OOlO -. --.lNQ9 0015 --.om9 -. 0014 -. -. cm14 0008 -. -. 0913 0008 -. -.ooos 0012

17 --.wo3 -.Mm3 -.0003 -.0003 -.OOa3 -.cml3

’ / -,- 0 1 2 /

:

:

i 9

10 11 12 13 14

:i li 18

j -

-- i=l

--- I-

0.44ii .0173 .0042 .0021 .0013

MI09 OOOi

.noo5

.0003 wo2

.OOOl

.0400 -. 0001 -.OOOl -.wo2 -. 0003 --.0003 --.0003 -. 0003

i-2 i=l i=2 i=5 i=5 1 i=li 1 j=3 j=.j -__

0.2949 I 0.2447

:E / .0698 .0262 0100

.OO63 : ~lEl3 -

.0044 Oil61 w32 .0045

.0024 .0033 : OOK .0015 0024

:Kc ~ .0008 .0002 -.om , -.0004

I: @; --.0009 -. 0014 -. 0012 -.OOli -.cQ14 -. 0019 -_ 0015 -. 0021 -. 0016 -. 0021

i=3

-0.2346 - ,038s -. 0077 -. ooil9

.0015

.0028

.@I35

. cm40

:E .0042 .0040 tOO36 .c031 .0025 .0019 .OOll .O+lO4

i=4 i=6

-0.0981

1: E --.0042 --.c004

5%

:E% .Kl37

:ED .0032 .0028 .cum .0017

0010 .0004

O. 360i .0434 .0124

0061 .0038 .0027 .0020 .0014 .OOlO .OM)i .cQO3

0000 -. 0002 -. 0004 -_ 0006 -. 0008 --.MlOY -.ooOY -.oolO

-0.4300 -0.3169 -. 0117 -. 0297

OofJO -.Oil43 .0021 .0005 .0031 .0023 ,003s .0033

Oil43 .0039 W46 .0643

.0047 .0045

.0047 w45

.0045 w44

.0042 .cQ41

.@I38 .0037 O+.l33 .0032

.0026 .0026

.0019 .0019

.0012 .Kl12 Ml04 .Om4

-0.li45

1: %

-SE .w23 .C032

:Ei .Kl41 .0040

4%

:iE .0018 .OOll .Om4

-0.1305 -. 0425 -. 0124 -. 0033

.0002

.0019

.0029

:% .0039 .lw38 .cQ36 .0033 .@I28 .0024 .0017 .OOll .cm94

0.2061 O.li63 I .0752 031.5 :;;g; ! .Olil .0202 / .OllO .0078 :Ei I

Oil58 OOTO W42 .0051

.0030 003 1 .0024 .0020

0010 .0002

- .0005 -_ 0012

1: g;; -.M)24 -_ WI26 -. 002i

-.0006 I

i=5

0.0149 .0124 .0081

Gil50 .0028

CO12 .oooo

--.oQ39 -. 0016 --.omo -. 0022 -.0023 --.w22 --.0020 --.0017 -. 0013 -. 0008 --.oOQ3

-

Shear flow, pi;, at station- -

-

i=3

0.0502 -.0099 -. w64 -.0037 -. 0024 -. 0017 -. 0013 -.OOlO -.Om7 -.cunM -.ccm2 -.CKUll

.CKMl

.0002

2% .w5

:ZE

-

--

-

j ---- / i=O

.- /

i=l i=2 i=4 i=O i=3 / i=4

i=5 i=l

---

0.0435 Oli4

.0092

.0052

.0026

.ooos - OOOij -. 0014 -.OOZl --.M)26 -. 0028 -.0028

I: ;;;: --.0020 -. 0015 -.Mlo9 -.I?303

j=2

0.0329 0.0251 .0164 .0152 .0091 IN88 .0052 .0051 .0027 .002i .0009 . 0010

-. 0004 -.0002 -. 0013 -. 0012 --.Oil20 -. MI18 --.OQ24 --.I?023 -. 0026 -. 0025 --.CQ2i -. 0026 -. 0026 --.OQ24 -. 0023 --.@I22 -. 0019 -. 0018 -. 0014 -.0014 -.ocil9 -.ooo8 - .0003 -.0003

-- 0.0523

5% .0051 .0026

OW8 -.cml6 --.0015 -. 0022 -.CQ2i --.0029 -.oQ29 -.0028 -. 0025 -. 0021 -. 0016 -. 0010 -.0003

0 1 2 3 4 5 G 7

i

:;

:i 14 15 16 17 18

0.0867 -. 0264 -.0084 --.@I42 -. 0026 -.oOli -. 0011 -.caO7 -.0004 -.MMl

:E .cca3 .OflO3 .00+4

:E .0004 .wo4

0.0658 -. 0165 -.0074 -.oll39 -.OQ25 -. 0018 -. Oil13 -.oKl9 -.OQO7

::gj;

;g

.0004

.cQO5

:E .ooO6

0.0386 -. 0055 -.0054

5: g;; -.0017 -. co12

2% -.cm4 --.0002 -.OLWl

.oM)l

:% .wO4 .ooo5 .0005 .OIMB

0.0299 I: 2;: -. 0031 -.Oil22 --.OiI16 -. 0012 -.ooos -.ooO6 -.lml4 -.0002 --.WOl

.M)ol

.wO2

.OOfJ3

:E .fw5 .0305

0.1885 .0485 .Oi20 .0721 .0678 .0615 .0539 .0453 .0362 .0267 .0174 .0083

-.OOOl -. 0077 -. 0143 -. 0195 -. 0234 -. 0258 -. 0266

0.0193 .0138 .0085 .cKl51 ,002s .OOll

-. 0001 -. 0010

1: KI --.0024 -. 0024 -.0023 -. w21 -. Oil18 -. 0013 -.lws -.cm3

Page 40: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE ll.-LOAD DISTRIBUTION DUE TO .4 UNIT PERTURBATION I,OAD

[B = 8; C = 2 X 103; m = 361

(a) Conccnt,rated perturbation load on stringer j=O at (b) Di~trib~~tecl perturbation load ou stringer j=O ring i=O betmeeu rings i=O and i= 1 (c) Shear perturbation load about shear panel (0,O)

j 1

- Strmger load, pii, at ststion-

i=2 i=3 _-

i=4 j=j i=G _-

0.0620 0.0488 .0542 .0485

: 11:4; .0452

0410 .0337 0357 ,0253 1029i .0181 ,012l : 11;:; .no72 .0124 .0033 .0004 : I;;;;

-. 0017 0001 -. 0031 -. 0025 -. 0039 -. 004G -. 0044 -_ 0060 -. 0046 -.OOiO

1: ;;:A -. U07F -. 0080

-. 0048 -. 0081

0.0448 (1441

: I,‘:;: 0356

: 0311 U2R2

: 0210 015Y

.U109 0003

-: ‘EZ -. 0044 -_ 0068 -. 0087 -_ 0100 -_ 0107 -. 0110

0.0426 0421

: 0407 0384

: 0353 .WlF .02i3

: K;; .0129 : g;

-. 0004 -_ 0042

1: ;;TJ: -. 0114 -. 012G -. 0128

0.0421 .0410 .04u3

0381 : 03.52

0318 102X .0231 ! .0184 .Ol35

00x7 :0041

--.0002 -.0040 --.um -.oino

r:",;g I -.U136 1

I j ,--

Stringer load, pii, at station- Stringer load, pJL, at station-

.i- i=l i=2 i=3 i=4 i=5 i=6

-- --

1 -O.llRS 0.0067 -0.0023 -0.0002 -. 0002 -0.0001 2 -. 0301 -. 0116 -. 0018 -. 0011 -. 0005 -. OOU3 3 - .002G -. 0094 -. 0032 -. 3014 -. 0008 -. ow4

i 0063 0083 :ooi2

-. -. 0048 0013 -. -. 0031 0022 -. -. CM16 0015 -. -. 0009 0009 -. -. ow5 0006 6 .OOll -. 0011 -. 0011 -. 0008 -. oOa5 7 ,005o 0023

9” J$;; I -: no05

: ,002s 0027

-_ 0001 -. 0007 -. 0006 -. 0004

.OOll .0006 -. .0003 0002 -. 0003 0000 -. -. CUM3 a001 10

::: -_ --.noi2 0011 .0004 :

Kf :K

: .0009

EE 0002 0001

0010 .0005 .oQ0G .0003 .OQO4

:: -. 0010

1: -. “0;;: 0002

-. -. 0001 0005 0005 01108 .0009 0008 0008 0008 .ccQ5 .UUO5

:i -. -. 0006 ooon .0002 .0007 .0005 .0007 .0005 .0005 .lYJO4

:;I -. 0001 0000 -. -. 0004 0001 : :~~~ 0000 oOQ3 0001 .0003 0001 .OQO3 .OOOl

Shear flow, gij, at station-

j -- i=O i=l i=2 i=3 i=4 i=5

---. --

y 1 -":3x;; -":;m; "Am& 0:;;;; o:Ao:; o:m;~

f 105li 04G4 -. -. 02’33 0225 -. .0014 0049 -. .0016 oool .OQO4 . 0010 .ONl7 .0004 34 0390

: 0224 --.0113 -. OOG7 -. 0017 -.0003 . ooilo

5 -. 001s -. 0057 -. 0024 -. 0008 -. 0003

; -: FJE .00x3 .0070 -. -. 0036 0012 -. -. 0024 II019 -. -. 0012 0012 --.OOQ6 -. 0008

i 1: “0;;” .0054 ooio ouo9 -. -. 0002 0010 -. -. 0011 0008 --.OOOS -.OUOS

:: -. 00;; 1: ii;;

: ::“,A .0026 : II:;; .OQO5 .0009 -. -. Om4 oool 7%; 12 -. 0007 .0020 0010 .0002 -. 0002

13 -. 0013 -. 0016 .OOll .ooos .0003 14 0000 -_ 0018 Oil01 .0005 .0004 :E 15 0008 -. 0010 -. 0007 .OMll .0094 16 .0012 -. 0012 -. 0014 -. 0003 .0004 :hz;

:; .0014 .0014 -. -. 0008 OOOi -. -. 0018 0020 -_ -. 0006 0008 .0004 .0093 .0006 .0006

i=l

0.0558 .0969 .0563 .0352 .0225 .0140 .OOSl .0040

0014 -: 0002 -. 0012 -. 0017 -. 0019 -. 0020 -. 0020 -. 0021 -. 0021 -. w21 -. 0021

i=2 i=5 i=G ~ i=l --__-

Y1 0.1983 UiSU ; U375

(1207 4 Ul19 5 / :unFG G I1033 7 I1012 8 j UOUl 9 I -: uuu5

10 -, 11008

::: -, -, uuu9 nun9

; I :.lE!i --‘01110

’ 17 I

-’ UUlU -:UOlO

18 -.UUlU

i=3

0.0540

: E

: IZ 02i9

:0212 .0152

uo99 :0055 .uo19

-. oooll -.002w --.0043 -. 0053 -.005Y -.0062 -.UO64 -.0064

i=4

0.0467 0460

: E

: E5' .u251 .0196 .u143 .0094 .uo50 .0012

-. 0020 -.0045 --.OOG5 -. 0079 --.OU89 -.ou94 -. 0096

O.OG35 OR93

: 04UG 0548

liE

: 0135 UU82 01142

-: 0013 uno7 -. 0019 -. 002i -. 0031 -. 0033 -. 0033 -. 0033 -. no33 -. 0033

0.0435 .0431 .0414 .0389 : ;;g

0268 0220

: 0169

: I%4 0031

-: 0010 -. 0042 -. 0071 -. 0092 -.OlOS -. OllG -. 0121

0.0423 ,041s .u404 .0382

: IYE

: 0";;: .0182 .u134

: Ei --.uoo2 --.0040 --.0073 -. 0099 -.0118 -.0130 -.0134

1 r .I i=l

-0.0031 .0396 .0443 .0367 .0255 .0141 .ou40

-.uu40 -. 0097 --.0132 --.0148 -.0147 --.013G -. Ulli -. 0093 --.0067 -.0040 -.uo13

.__ i=O i=2

O.OOGB .0122 .0186 .u205 .0184

: Kiti .0029

--.UO24 -.W68 -. 0100 -. 0118 --.Ul23

I: ;:A; --.0077 -. 0049 -. OOli

.__

i=3 i=4

0.0016

: Ki .omi

UU83 .0075 .0057

0073 : oobi

-.oo20 --.0042 -. OOBl --.0071 -_ 0074 --.01167 -.0054 --.uo35 -.0012

i=3 i=O i=l i=2 i=4 -__

U.UOll .uU31

0048 :OOSS .OU61 .UO5G .uo44 .OU28 .0008

--.0012 -. 0031 -.0045 --.0055 -.ou5i -. 0053 -. 0043 -.0028 -_ 0009

j=:,

0.0003 0007

:uu11 0014

:ou15 .0015

0013 : 0009 .oou5

-.oou2 1: gl;

-.UUl6 -. 0018 -. 0017 -_ 0014 -. 0009 -_ 0004

i=5 _-

0.0020 .0064 .0093 .0109

:KG OoiO

.003&l

.0004 -. 0029 -. 005i --.UOii -. 0088 -. 0089 -. 0081 -. 0064 -. 0041 -. 0014

0.3Uli : UiUG 145i

.u293

-: (1055 ouii -. 01-13 -. UlG8 -. 0189 -. II158 -_ 0142

O.OGi4 OiGl

: II.% U2lG

-1 g; -. 0095 -. U13G -. 0155 -. 0158 -, U14G -. 0128 -. 11106 -. (1082 - .UO58 -. 0035 -. 0012

0.0047 .0225

02% 102i9

: FlIti

: %I: --.005i -. 0099 -. 0125 --.ni35 -, 0133 -, 0121 -. 0100 -. OOi5 -.UO4G -_ 0016

0.2221

: E .033i .0112

-. 0028 -. OlU9 -. 0149 -, 0163 -. OlGl -. 0149 -. 0132 -. 0113 -_ 0093 -.ou73 -.UO52 -_ 0031 -_ 0011

0.0037 .onoi .0134 .0152

r : I;';; .00x0

0036 --.UOOi -.004G --.ou77 -.uo97 -_ OlOi -_ 0105 -. oow -. OOi3 -. 0046 -. 0016

0.0006 : E : Ei : L% .0020

-: IIE -_ 0018 -, 0028 -. 0030 -. 0038 -. 0037 -. 0030 -. 0020 -.UOOG

-

Page 41: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 12.-LOAD DISTRIBUTION DUE TO A USIT PERTURBATIOS LOAD

[R=30; c=2x103; v&=36]

(b) Distributed perturbation load on stringer j=O between rings i=O and Z=l

(aj Concentrated Derturbation load on stringer i= 0 at ring i=O (c) Shear perturbation load about shear panel (0,O)

I- I I-

-

Stringer load, pii, at station-

i=3 i=4

-

_-

,

- i=j

/ Stringer load, pii, at stntion- Stringer load, pii/L, nt station-

i=2 i=4

__- j I i=l : i=2 : i=3

-- - -

_-

-

--

-

_-

-

-

--

-

i=G i=j 1 i=G i=l i=3 --

-0.0081 -. 0142 -. 0108

3% -. 0004

.oolO ,001s .0022 .0023

CQ23 .0020 .0017 .0014

:k%:

:ETlf

i=.!

0.0592 .0559 .0480 .0393 .0315 .0249 .0194 .0146 .0105 .0069 .0037 .0009

-. 0015 -. 0034 -. Oil51 -. 0063 - .0072

1: g:;

i=5

-0. CO13 -. 0033 -. 0039 -. 0033 -.oQ23 -.w13 -.0004

.oOQ3

:fE .0013 .0013 .0013 . GO11 . GO10 .wo8

:zi

i=6 _-

O.OG48 .0599

: % : g;: : p7G7 .0091 .0058 . cm29 .0005

-. OOlG -. 0032 -. 0046 -. 0056 -.0083 -.oQ68 -. 0069

0.0547 .0525 .0467 .0397

: %E .0211 .0162 .0119 . 0080

CO45 MN4

-. 0013 --.0036 -. 0055 -. 0070 -. 0080 -.W86 -. 0088

0.0494 0.0463 .0481 .0454 .0445 .0429 .0396 .0392 .0342 .0348 .0287 .0300 .0235 .0251 .018G .0203 .0140 .0156

M)97 .Olll .005i .0068 .0022 .0029

-. 0010 -. 0007 -. 0038 -. 0039 -. 0061 -. 0068 - .0080 -.0087 -. 0093 -. 0103 -_ 0101 -.0112 -. 0104 -.OllG

; 3 4

i

i

1:

:1 13 14 15 16 li 18

-0.2224 -0.0328 - ,032G -.0321 -. 0011 -. 0135

.0066 -. 0042

.0085 0002

.0081 .0024

.0067 .0034

.0049 .0036

.0030 .0034

.0014 .0029

.0002 .0022 -. 0006 .0015 -.OOll .0009 -. 0012 .0004 -. 0012 .OOOl -.oM)9 -. 0001 -. 0006 -. 0001 -.oM)2 -. 0001

-0.Oil30

I: g;; -.M)50 -. 0030 -. cm14 -. 0002

.0007

. cm3

.OQ17

.0019

.0019

.0018

.0916 cm3

. 0010

:Ei

0.2863 .OG16 .0222 .0115

UUTO uu45 0029

: 001X 0010

.0004 0000

- .0004 -. 0006 -. ciloi -. 0009 - .0009 -.OOIO -. 0010 -. 0010

r Shear flow, p;i, at station-

Shear flow, qiiL, nt stotion- T Shear flow, q&. at station- - 7

_-

-

-

.-

-

-

_-

-

i=O i=l i=3 i=4 i=O

0.1731 .0846 .0459 .0243 .0106 .0015

-. 0046 -. 0085 -. 0108 -. 0119 -. 0120 -. 0115 -. 0104 -. 0089 -. 0072 -.Ml53

1: %Y

- - i=2

0.0349 . 0101

-. M)73 -. 0106 -. 0088

1: g;; -.GlUl6

.0013

. Gil24

.0030

:ZZ .0015 .0004

--.ooO6 -. 0014 -.cmo -. 0022

j=5 i=2 i=4 i=o / i=l 1 i=2 i=4 / i=5 i=l i=3 i=5

--

0.0334 0.0111 0.0050 0.0027 0.0015 .0493 .0239 ,012s .0070 OQ42 .0380 .0247 .0151 .0092 .0059 .0257 .0200 .0139 .0093 .0062 .0155 .0141 .OllO .0079 .0057

CO74 .oos4 .0073 ,005s .0044 .ooll .0034 .0037 .0033 ,002s

-.0037 -.C+lO8 .0004 .ooQ9 .OOll -. 0071 --.0042 -. W23 -. 0012 -. 0005 -.Oil94 - .0067 --.OQ45 -. oo.so --.cQ19 -. 0106 -.0083 -.0060 - .0042 --.0030 -. 0109 -. 0090 -. 0069 - .0050 -. 0037 - .0104 -. 0091 -. 0071 -. 0053 -. 0040 -.w94 -. 0084 -. 0067 -. 0051 - .0040 -. 0078 -. 0071 -. 0058 -. 0045 - .0035 -. 0958 - .0054 -. 0045 --.0035 -. 0028 -. 0036 -. 0034 -. CO28 -.0022 -. OOli -. 0012 -. 0011 -. 0009 - .0008 --.0006

-

O: E .0669 .0691 .0560 .0390 .0227 .0093 -. 0005

-. 0066 -. 0094 -. 0098 -. 0085 -. Oil63 -.0038 - .0015

.0004

.0016

.0020

0.1562 -. 0333 -. 0338

1: ;;g -. 0023

52: . 0080 .0077 .0062 .M)43 .0021 .Om2

-. 0015 -. CO27 -. 0035 -.0040 -. 0041

“: El .OQl9

-.0008 -.0024 -. 0030

I: gg -.ooz( -. 0018 -. 0011 -.OQO4

.0003

.GoO7

. 0011

.0013

.OQ14

.0016

.0016

-- - 0.0038

.0094

.OllY

.OllB

.0093 0067

.0035

.0008 -_ OOli --.0038 --.w51 --.ooM) -. 0062 - .0059 -. 0052 -. 0040 -. 0029 - .0009

0.0020 ,005; 2%:

OOi3 .0054 ,003s .0012

- .0007 -. W24 - .0038 - .0047 -. 0050 -. 0050 -. 0044 -. 0035 -. 0022 -. 0007

0.0131 .0080

-2% -. 0047 -. 0043 -. 0033 -. 0022 --.OOll -.0002

.0005

:E

:E .cnO4 .Om2

, :Ei

0.0860 1 0.0200 :",iy; / .0349

.0310

0.0076 .0175 .0195 .0169 ,012G .0080 .0037

-. 0001 -. 0031 -. 0055 -. OOil - .0079 --.WEl

1: ;;yj; -. 0050 -. 0031 -. 0010

Page 42: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 13.-LOAD DISTRIBUTION DUE TO -4 UNIT PERTURBATION LOAD

[R=lOO; C=2X103; m=36]

(a) Concenkated perturbation load on stringer j = 0 at ring i=O

(b) Distribnted perturbation load on stringer j=O between rings i=O and i= 1 (c) Shear perturbation load about shear panel (0,O)

I

j ;i,- Stringer load, pii/& at station-

j 1 I- -l -

Stringer load, pi,, at statiotl- Stringer load, pii, at stntion-

i=,j

O.ORll 05%

.04i5

: E I .0243 .0191 .0147

ON19 OOi5

.0044

.0015 -. 0010 - .00x2 -_ 005G -_ 0065 -_ ouio -. 008:3 -. 0085

j 1 ---- i=l i=O

7 - - i=2 i=3 i=4 i=5

-0.1196 -0. 0485 -0.0214 -0.0103 --.0428 -.0335 -.0227 -.0148 -.0119 -.0146 -.0133 --.0107 -.0026 --.0056 -.oOG5 -.0062

0011 -.0013 -.Oil26 -.0+x4 ,002s .0008 --.0003 -.OOQ8 .OU36 .0020 .OOll .0006 .0039 .0027 .0020 .0015 .0039 .0031 .0025 .0020 .0037 .0033 ,002s .0023 .0033 .0032 .0029 .0024 .W29 .0031 .W28 .0024 .0023 ,002s .002G .0022 .0019 .0024 .0023 .0019 .0014 .0019 .0019 .0016 .0009 .0014 .0014 .0012 .0006 .0009 .0009 .0007 .0002 .0003 .0003 .0002

- -

i=5 i=G

0. 0753 O.OG48 .0645 .0589 .0435 .0450 .0357 .0377 .0267 .0295 .0204 .0731 .0157 .0181 .0119 .U138 .008i .0102

0059 .0070

: "OKi :KY -. 0010 -. 0010 - OOZi -.0030 -. 0042 -.0048 -. 0054 --.0062 -. 0083 -.0072 -. 0068 --.0078 -. OOiO --.0080

- i=l i=2 i=3 / i=4 j i=5 i=2

_----

0 1971; 07i3

,032i ,0179 .0115 ,008l ,005s ,0042 ,0029 ,001x

0008 ooou

--.OOUi --.a012 -, 0017 -. 0021 -, 0023 -, 0025 -. 0025

is3 ’ I i=4

0.1532 .0803 .0394 .0227 .0149 .I1106

0077 : 005G .0039 .0025 .0012 .OOOl

-. 0003 --.0018 -. 0022 -. 002i --.0031 --.0033 --.0034

- 0

:. 3

i Ii 7

i 10 11 12 13

:; 16 Ii 18

0.2551 .0702 .0243 .012G .0079 .0054 .0039

0027 0018

.OOll

.0005 -, 0001 -_ 0005 -_ 0009 -. 0012 -. 0014 -_ OUlR -_ 0017 -_ 0!)17

0 0. :3oo:i 04x1

k .0129 3 I nnri4

-0.0055 -.OG97 -.0083 -.OQ54 -.0029 -. 0011

.OOa2

.OOlO .0016 .0019 .cmo .oim .0019

w17 Ml14 0010

.OQG6

.OQo2

I

2 -0.3158 -. 0259 3 --.OOOl

Ii ! .0052 .0069 0 .OOi2 i .0066 8 1 .0056 9 I .0043

10 .0030

1: I .0019 .0009 IX 0001 14 - .0003 15 --.0006 ID -. OOOG Ii --.0004 In --.0002

0.1271 0. 093.3 Oi81 Oil5

.0433 ,047G

.(I265 .0322

:E ' .0230 illi(l .0095 ,012s .0070 DO95 .0049 .0068

0031 .0045

4 0040

i : K i OU13

t; -. 0003 I -_ wJ4

1: -. -. OOOG OOOi 16 --.0008 li -, 0008 13 -_ 00118

1 ,

.0016

.0003 -. 0009 -. 0019 -.0027 --.0033 -.0038 --.co41 -.0042

.0024 OOOG

-_ 0010 --.0024 -.I1035 -.0044 --.0051 -.0055 -, OU56

-

Shear flow, qii, at station- 1 il I Shear Row, cji:L, at station- Shear flow, q;fL, at station- /

j -__--___ iso ; , i=l I .-

__-

i=2 i=3

-1 j ‘-._- il I i=O

i=5 I i=3

- j --_ i=O

i=l i=2 i=4

0.0169 0235

: 2: .0034 .0043 .OOlO

-. 0016 -. 0035 -. 0048 -. 005G -. 0059 -. 0058 -. 0053 -. 0045 -. 0034 -. 0021 -. 0007

1=4

0.0090 Il. 0052 .a159 .0108 .0149 .0113 .011:1 .0092 .ooi5 .0065 .0042 .0038 (0014 .0014

-7 0009 -. 0005 -. 0027 -. 0020 -. 0040 -. 0031 -. 0048 -. 0038 -. 0052 -. 0041 -. 0051 -_ 0041 -. 0047 -. 0038 -. 0039 -. 0032 -. 0029 -. 0024 -. 0018 -. 0015 -_ OOOG -. 0005

i=2 ( i=3 / i=4 / i=j i=5

0.0104 .0056 .ocQ5

3% -.0027 -. 0024 -. 0020 -.0015 -. Doll -.OOG7 --.Om3

.ooMl

.OOG3 .OWB

:zE .OOlO .OOlO

i=l

0.0510 .11410 .0259 .0158

00% .003G

1: “,% -. 00’51 -. 0065 -. 0072 -. OOi4 -. 0071 - .0064 -. 0053 -. 0040 -. 0025 -. 0008

0.0352 .0344 .0238 ,0152 ,0088

0039 .0002

-. 0025 -_ 0046 -. 0059 -. 0067 -, 0070 -, 0067 -. 0061 -. 0051 -, 0039 -, 0024 -, 0008

0.151i -. 0444 -. 0275 -.015i -. 0079 -. 0020

.0024

.0054 ,007l .0075

CO?8 .0054 .0034 .01112

-_ 0010 -_ 0029 -. 0045 -. 0054 -. 0058

O.OGi9 0.0331 0.0178 -. 0032 .0060 .0067 -_ 0126 -.aG48 -. 0011 -. 0099 -. 0061 -. 0036 -. 0068 -. 0052 -. 0038 -. 0044 -. 0040 -. 0034 -. 0024 -. 0030 -. 0029 -. 0008 -. 0021 -. 0023

.0004 -. 0013 -. 0017

.0012 -. 0007 -. Oil12 OOt6 -. 0002 -. OQG7

.0017 .0002 -. 0001

.0015 .0005 . 0002

.OOll OOOG .0005 oil06 .0007 .oQos 0000 .0007 .OOlO

-. 0004 .0008 .OOll -. 0007 .0008 .0012 -. 0008 .0008 .0013

--i-- 0 0.3911

8 .Olli 9 003)

Ill -. 0031

16 -. 0059 li -. 0051 18 , -.0048

--~__

0.0234 .02u4 ,0216 .0144 .003i .0042 .0007

-. 0021) -. 0040

I: ii;; -_ On;4 -. OOG2 -. 0057

1: ;g ~ -. ooz2 -. 0008

Il. 0119 ,ot92

:Z 0080

0.0041 .OOW ,009s .0083 .0060 .OU:lG .ou15

-. 0003 -. 0018 -. 0628 -_ 0035 -_ 0038 -. 0038 -, 0035 -. 0030 -_ 0022 -_ 0014 -. 0005

0 0.1224

; .0522 .0279 :3 0153 4 OOi4

i -, .0020 0019 7 -. 0046 n -_ 0065 9

t’: 1: -. pig 0081 12 -. 0075 13 -. OOGG 14 -. 0055 15 -. 0041 16 -. 0025 17 -. 0008

0 0.139i 0.0813 1 ,02io O.%G / I ,0272 04x

3 .0150 ; .015i 1 Ol)70 1 .0082

.()I04 OOil 0040

,0014 -_ 0007 -. 0024 -. 0036 -. 0044 -. 004i - ,004i -, 0044 -, 003i -. 0028 -, 0017 -_ 0005

5 ' onlo 6 -_ 0023 i -. 0050

ii -. -. OOG8 OUi8 IO -. 0082

:1 -, -. 0081 007G 13 -_ OU66 14 -. 0055

:i -_ -. 0041 0025 li -_ 0009

0043 .0012

-. 0012 -. 0031 -_ 0044 -. 0051 -, 0054 -. 0054 -_ 0049 -_ 0042 -, 0032 - .0020 -. 0007

0029 -_ 0010 -_ 0039 -. 0058 -. OU7L -, 007i -. 0078 -_ 0074 -_ OOGG -. 0055 -. 0041 -_ 002G -. 0009

- -

Page 43: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 14.-LOAD DISTRIBUTION DUE TO A USIT PERTURBATION LOAD

[R=3M); C=2XlO~;m=36]

(b) Distributed perturbation load on stringer j=O between rings i=O and i= 1

(a) Concentrated perturbation load on stringer j=O at (c) Shear perturbation load about shear panel (0,O) ring i=O

j

- I_

I-

Stringer load. pij, at st&ion- Stringer load, pii, at station- Stringer load, pi!/& at station- -

--

- i=l i=2 i=3 i=4

--- i=5

0.3354 0.2366 0.1756 0.1370 0. 1116 .0506 .0716 .0782 .0781 .0752 .0149 .0271 .0359 ,041; .0453 .w74 .0142 .0201 .a250 .ozw .0046 .0091 .0132 .0168 .0201 .CMJ32 .oil64 .0094 0121 .W24 .0047 .0069 : 0090

.014i

.OllO .0018 .0035 .0051 .0067 .0032 .0012 .0025 .0036 .0048 .005Y .0008 .OQ16 .OQ24 .0032 . 0039 . 0004 .OC08 .0013 .0017 .M)Zl .ooOl .0002 .om3 .ow4 .0006

-.oIxlz -.ow4 -.CGfI6 -.ow7 - -.M)03 -.wo5 -. 0010 -.0014 -.0017 -, 0021 -.oQ37 -.0014 -.0020 -.0026 -. 0011 -. 0000 -. lnll8 -. 0025 -.0032 -.0039 -. 0010 -.0020 -.ooZQ -.w37 -.0045 -. 0011 -.0022 -.0031 --.0040 -.0045 -. 0012 -.0022 -.0032 -.0041 -_ OOSO

i=4 i=5

-0.0462 -.031Q -.0145 -.oass -.0016

.cme

.&I18

.W26

.0030

.w32

.0032

.OOTTl

.0029

.@I25

.ooM

.0015

.om9

.0003

i=O

-

- - -

_-

-

i=6 i=l -__

0.4103 .0286

OiX6 .0037 .0023 .0016 .0012

0001) 0006

:I1004 .ooiIz

0000 -: 0601 -.Lm3 -. 0004 --.ow5 -_ no05 -_ WOE -. 0006

i=5 i=G i=6

-0.0288 -.0256 --.0138 -.WR3 --.w22

. 0000

.0014

.0022 092i

.LQ29

.0030

.0029

.0026

.0023

.@I19

.0014

.oon9

.0003

i=4

-2 :g; -.0143 -.0049 -. 0009

.0+x2

.0023

.on30

.0034

.0035

.0035

.0934

.0031

.0327

.0022

.0016

. M)lO

.0003

i=2 i=3 -__-__

0.2520 0.2035 OA25 :I)213 .0318 075

:IIE”, 1 11172 (0111

.Ml49 Kli9 003ti

:0026 :Ml58 ,004 .Wl8 0031

Ix)12 :0020 .0006

WOl -.6uo4 -. OOOi -, IN11 -.0014 -. 001.5 -.0017 -. o(lli

II010 .Mloz

- 000.5 --.0012 -, OOli -.0022 --.0025 --.OQ27 --.0027

i=l

-0.3812 --.0183

.0003 cm9

.0052

.005i

:i%

: II::;: .c932 .0024 .0018 .w12

0003 .0005 .0002 .OOOl

i=2

-0.2185 --.0401 -.0082 -.OooQ

.0017

.0030

.oQ37

.0041

.0042

.0042

.0040

:tE .LOZS .M)22 .0016

cm0 .oQo3

i=3

-0.1276 -.0427 --.0125 -.0033

.omJz

.0019 ccl29

.0035 ,003s

: El% .003fi .0033 .ooZY .0023 .0017 .oOll .oQo4

-- t 0.0945

.0713

.04i2

.0320

.0228

.0170

.0128

.0096 ME0

.W46

.oilzfi OoOi

-. 0009 --.0023 --.0035 -.0045 -.oosz -.0056 -. 005i

0.1549 .0785 .0390 .022i .oi5n .0103 ma0

.0059

.M)42

.0028 0015

.0003 -.OOOi -_ 0016 -.(H)23 -. 0029 -.0033 -, 0030 -. 003i

0. 1234 0.1026 0763 .07x3

.0436 .0464

.02il Ot~OS 0185 .0215

.0134 ,015s 0100 OllY

.on74 .0059 0054 OOM oot35 .om3

.no19 .0024

.0005 ,0006 - .0008 -.0009 -. OOlY --.w22 -.nn23 --.w33 -.0036 --.0042 -. W4l --.0043 -.on44 -.0052 -. 0046 -.0054

1 3 4 5 Ii i

i 10

:1 13

:; 16 li 18

j

-

1 -

r - Shear flow, pi,., at station- 1 Shear flow, g;&, at ststion- Shear Aow, g& at station-

i=O i=l i=4 i=5 - -i- T- i=O

i=2

0.0775 --.0137 --.Olll -.w68

2% -. 0019 -.0011 -.0095

:E .cao5 .QQQ6 .0006 .o@Q5 .oMl4 .om3 .ooo3 .ow3

-.

i=3

0.0498 -, 0024 --.w73 --.0055 -.0039 --.cQ2ll -.0021 --.0015 --.OOll --.ooo7

-2% .om .ooo4 .OCHl6 .ocQ7 .otns .0008 .ooO8

i=l i=2 i=3 i=4 i=l / i=2 i=3 1 i=4 i=5

0

f

i4 5 6 i

9” 10 11 12 13

:i 16

:i

O: i% .0755 .0749 .0671 .0567 .0453 .0339 ,083 .0139 .ooixl

--.cilo4 --.oQ53 -.0088 -. 0113 -. 0129 -.0135 -.0143 -. 0144

0.1222 -.0402 -.0184 -. 0166 -. 0051 -. Ml16

.0012

.0032

.m44

. Ml49

.oil47

.oo39

.W26 Oil11

-.ooo5

-:%i -. cQ39 -.0042

0.0315 .6017

--.M)46 -.0044 -.cQ34 -.0027 -.coM -.ciIl5 -. 0011 -.OOOS -.cm4 -.oml

.olwl

.ooo3

.&lo5

.wo7

.lMo8

.wO8

.oMJs

i- .- 0.0209

.oQ35 --.0027 -.0035 -.0030 -.0024 -. co10 --.0015 -. 0011 --.09Oi -.0004 -.oooz

.cml

.0003

.QQo5

.oM)6

.lwl7

.OW8

.oals

0.0494 0.0305 0. 0193 O.Ol?i O.OlT36 .0284 .0239 .O?Y4 .01.56 .0125 .0162 .0151 .0136 .0120 .0105 .cQQ4 .0092 .OO87 OOSl .0075 .0050 .0051 .oQ50 .0049 .0047 .0018 .cQ21 .w22 .W24 .0024

--.0005 -. 0091 .0002 .ooil4 .oceF -.0022 --.OOlS --.co14 --.Wll -. 0009 --.0034 --.oQ30 --.0026 -.0022 -_ 0019 --.Oll42 --.OQ?8 -.cQ34 --.0030 -.oozfi --.M)46 --.0042 -.c039 --.0034 -.0031 -.co47 -.cQ43 -.0039 --.0036 -.0032 --.0045 --.0041 -.0038 --.0035 -.0032 -.0041 -.lM37 -.0034 -.0032 - .0029 -.c034 -.rM31 -.0029 -.0026 --.0024 -.0026 -.0024 -.Ml22 --.oozo --.0018 -.0016 -.0015 -.0014 --.oolZ --.OOll -.ooo5 -.ooo5 -.ooo5 -.ooo4 -.ooo4

o:floM; I 0.03Yl .0262

.0166 om4

: 0049 ::I%; ,050 -1 g; -:0003 Ml20

-.@I24 -_ 0020 -.0036 -.0032 --.0044 --.0040 -. 0049 --.0044 -.004Q --.0045 -.o+l47 --.0043 --.OQ42 --.0031 -.0035 -.0033

--.0024 --.0015 --.005

-.0026 -.0016 --.0006

0.0244 0. 015i ,0216 Oli5 .0144 .0129 .003Q .0054 .floso / 0050 .0022 0023 .oooo 1 : 0003

I -.0016 -.0029 --.0036 --.0040 -.0041 -.w40 -.003f! -.cKN -.ooZR --.0014 --.OWj

--.0013 --.0024 --.on32 - nnx --.OOSi --.co36

1: $J$ --.0021 -.0013 - .0004

0.0823 .0317 .0168 .0094 .W48 .@I15

-:Ei --.003Y -.w47 -.wJ51 --.CQ52 -. 0049 -.0044 -.0037 --.lNzs -.0017 -.OIN6

0 0.0892 1 .0320 2’ OlFS 3 .0094 4 .0047

i -_ .0014 0010

0.0104 ,014o .0113 .OOi8 .0048

:E -_ 0010 -. 0021 --.nozs -.omz -.rm4 - W3P -.onx --.0025 -. 0019 -.on12 -.ooo4

7 8 9

:7

:,” 14

E li

--.CQ27 --.0040 --.iM45 --.0052 --.0052 --.rm)50 -.0045 -.0037 --.oQzq --.OOli --.CKlO6 i - I -

Page 44: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 15.-LOAD DISTRIBUTION DUE TO A UXIT PERTURBATION LOAD

[B=l,OOO; C=ZX103; m=36]

Distributed perturbation load on stringer j= 0 between rings i=O and i= 1

(a) Concentrated perturbation load on stringer .j=O at. ring i=O (c) Shear pert,urbation load about shear panel (0,O)

j

f 3 4

i

i 9

10

:i 13 14 15 16 li 18

j

- 0 1 3 4

i 7

i 1c 11 1: 1: 1” 1: If

:i

r

j

0 1

; 4

i 7

9" 10 11 12 13

:i 16 17

Stringer load, pii, at station- Stringer load, m/L, at station- Stringer load, pii, at stotion-

i=l

- i=2 i=3 i=4 1 i=j 1 i=G i=5 i=O

_--

0.1X3 .0777 .0359 .0202 .0132 .0094 .0070 .0051 .0037 .0024 .0013

i=O i=l i=2 i=3 i=5 i=l i=2 i=3 i=4 -__ _- _-

0.3GO7 0.2949 0.2447 0.2061 .0434 .0599 .0698 .0752 .0124 .0198 .0262 .0315 .0061 .OlOO .0137 Olil .0038 .0063 .0087 .OllO .0027 .0044 .0061 0078

0020 .0032 .0045 .0058 .0014 .0024 .0033 .0042 .OOlO .0017 .0024 .0030 .0007 .OOll .0015 .0020 .0003 .0006 .0008 ,OOlO

0000 0001 .0002 .0002 -. 0002 -.0003 -.0004 --.0005 -.0004 -.0007 -. 0009 -.0012 -.0006 -. 0010 -.0014 -.0017 -_ 0008 -. 0012 -. OOli -.0021 -_ 0009 -. 0014 -. 0019 -.0024 -. 0009 -. 0015 -, 0021 --.002G -. 0010 -. 0016 -. 0021 --.0027

i=4 i=6

-0.1745 -0.1305 -0.0981 -.0424 -. 0425 -.0406 -.0104 -. 0124 -.0136 -. 0022 -. 0033 --.0042

.0008 .0002 -.wO4

.0023 .0019 .0015

.0032 .0029 .M)26

.0037 cm35 .0032

.0040 .0038 .0036

.0041 .0039 .0037

.0040 ,003s .0037

.0038 .0036 .0035

.0035 .0033 .0032

.0030 .0029 .0028

.0024 .0024 .om3 ,001s .0017 .0017 .OOll .OOll . 0010 .0004 oOil4 .0004

0.2237 .0731 .0290 .0154 .0099

: E: ,003s ,002i .0018 .0009

no02

- _- - 0.4001

.0323

.0084

.0041

.0026

.0018

.0013

.OOlO

.0007

.0004

.0002 woo

-. 0001 -.ow3 -.0004 --.0005 -.OilO6 -.0006 -.0006

0.4477 .0173 .0042 .0021 .0013 .0009 .0007 .0005

0003 .0002 .OOOl

0000 -_ 0001 -_ 0001 -. 0002 1: “0;;;

-.0003 --.0003

-0.4298 -, 0112

OOOi .0030 .0040 .0046 .0049 .0049 .0048 .0045 .0041 .0036 .0031 .0025 .0020

:Ki .0003

-0.3169 -. 0297 -. 0042

OLO5 .0023 .0033 .0039 .0043 .0045 .0045 .0044 .0041 .003i .0032 .0026 .0019 .0012 .0004

-0.2346 -. 0388

1: g;: .0015 .0028 .0035 .0040 .0042 .0043 .0042 .0040 .0036 .0031 .0025 .0019 .OOll .0003

_: yu;

--.0014 --.0020 --.0025

J

--.0020 1: lm;

i

Shear flow, qci, at station- Shear flow, g;jL, at station- /

-1 -, Shear flow, cl;;& at station-

j -

_-

-

i=O / i=l i=2 i=3 i=4 i=j

0.0499 0.0377 0.0286 0.0219 0.0169 0.0132 .0177 .0170 .0159 II145 .0131 .0118 .0092 .0092 .0090 008i .0083 OOi9 .0051 .0052 .0052 .0051 0050 .0049 .0026 .0027 .0027 .0028 .0028 .0028

0008 .0009 0010 .OOll .OOll .0012 -. 0005 -. 0004 -. 0003 -. 0002 -. 0001 -. 0000 -_ 0015 -. 0014 -. Oil12 -. 0011 -. 0010 -_ 0009 -. 0022 -. 0020 -. 0019 -. 0018 -. 0016 -. 0015 -. 0026 -. 0025 -. 0023 -, 0022 -_ 0021 -. 0019 --.0029 -. 0027 -. 0026 -. 0024 -. 0023 -. 0022 -. 0029 -. 0028 -. 0026 -. 0025 -_ 0024 -. 0022 -. 0028 -. 0026 -. 025 -. 0024 -. 0023 -. 0022 -. 0025 -. 0024 -. 0022 -. 0022 -, 0020 -. 0020 -. 0020 -. oil20 -. 0019 -. 0018 -. 0017 -. 0016 -. 0015 -. 0015 -. 014 -. 0014 -_ 0013 -. 0012 -. 0010 -. 0009 -. 0009 -_ 0008 -. 0008 -. 0008 -. 0003 -. 0003 -. 0003 -_ 0003 -. 0003 -. 0003

- i=O i=l i=2

i=O

0. 1936 .0532

Oiji .0744 .0684 .0004

0512 .0415 .(I317 .0221 .0132 .0050

-. 0022 -. 0083 -. 0133 -_ Oli2 -. 0200 -. O21i -. 0222

i=l

0.0842 -. 028i -. 0102 -. 0053 -. 0028 -_ 0012

0001 .OOll .0017 .0020

0020 .0017 .0012

-1 ;;;y -_ OOOi -_ 0012 -. OOlB -. 0017

i=2 i=4

0.065i 0.0502 0.0386 -. 0166 -. 0099 -. 0055 -. 0075 -. 0064 -. 0054 -. 0040 -. 0037 -. 0034 -. 0025 -. 0024 -. 0023 -. OOli -. 0017 -. Oil17 -. 0012 -. 0013 -. 0012 -. 0008 -. 0009 -. 0009 -. OOOB -. 0007 -. 0007 -. oNl3 -. 0004 -. cm4 -. 0001 -. 0002 -. 0002

0000 0000 -. 0001 .0002 .OOOl .OOOl .0003 .0002 .0002 .0004 .0004 .cal3 .0004 .0005 .0004 .0004 .0005 .0005 .0005 .0006 .0005 .0005 .0006 .0006

i=5 i=3 i=4

0.0523 0.0435 0.0329 0.0251 0.0193 .0177 .0174 .0164 .0152 .0138 .0092 .0092 .0091 .0088 .0085 .0051 .0052 .0052 .0051 .0051 .0026 .0026 .0027 .002i .0028

0008 .0008 .0009 0010 .OOll -. 0006 -. 0005 -. 0004 -. 0002 -. 0001 -_ 0015 -. 0014 -. 0013 -. 0012 -. 0010 -_ 0022 -. 0021 -. 0020 -. 0018 -. 0017 -. OOZ -_ 0026 -. 0024 -. 0023 -. 0021 -. 0029 -_ 3028 -. 0026 -. 0025 -. 0024 -. 0029 -_ 3028 -. 0027 -. 0026 -. 0024 -. 0028 -. 0027 -. 0026 -. 0024 -. 0023 -. 0025 -. 0024 -. 0023 -. 0022 -. 0021 -_ 0021 -_ 0020 -. 0019 -. 0018 -. 0018 --.0016 -. 0015 -. 0014 -. 0014 -. 0013 -_ 0010 -. 0009 -. 0009 -. 0008 -. 0008 -_ 0003 -. 0003 -. 0003 -. 0003 -_ 0003

i=5 .-

0 1

; 4 5 G 7

: 10

::: 13 14

:i 17

0.0149 0124

.0081 on50

.0028

.0012 onno

-. 0009 -. 0016 -_ 0020 -. 01122 -_ on23 -. 0022 -. 0020 -. OOli -. 0613 -_ 0008 -. 0003

0.0299 -. 0025 -. 0044 -. 0031

1: Ei -. 0012 -. ooo9 -. Oil06 --.GQO4 -. 0002 -.ooQl

.O+Ol

.0002

.OOQ3

. oGo4 cilo5

2% - -

Page 45: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE K-LOAD DISTRIBUTIOS DUE TO A USIT PERTURBATION LOAD

(a) Concentrated perturbation load on stringer j=O at ring i=O

(b) Distributed perturbation load on stringer j=O between rings i= 0 and i= 1 (c) Shear perturbation load about shear panel (0,O)

1 -

f Stringer load, pii, at station-

i

_ i=l ) i=2 / i=3 i=4 1 i=5 1 i=6 ~

0 0.2073 0.0740 0.0621

i .0850 .0399 .0606 .0785 .0590 .0539

---Fl-G/ 0.0530

.0520 .048i : .0074 OlRi .0419 02F3 .0453 .0351 .0436 .0369 .;ll; :0369 / ’ %; !

5 .0018 .0145 ,024s 6 -. 0005 .0063 .0156

.0294 :g:; 1 4~~ j

.0215 i -. 0009 .0015 .0082 .0142 .0205 ’

-_ OOOi -_ 0009 ,002s OOiS :E i ,014i 1: -. -. 0994 0002 -. -. 0018 0019 -_ -. ooO6 0024 -. ,002s Oil08 .0018 .ooF3 / .0043 .0092 ,

11 -. 0002 -. 0017 -. 0031 :i -. -. 0003 0004 -. -. 0015 0014 -. -. 0033 0032

-. 0030 gj:; -:g: / -_ -. 0043 0047 I: --.Ml54 : --.0054 I

:i -. -. 0006 0005 -_ -. 0015 0016 -_ -. 0030 0029 -_ -_ 0048 0047 -.0061 -. 0064 --.0069 -. OOi8 j

:: -. -. 0006 Mnx -. -. OOli 0018 -. -. 0029 0029 -. - .0045 0043 -. --.0063 0064 -. -.0085 0083

18 -. 0006 -. 0918 -. 0029 --.0043 --.0063 -.0086 ~ :

Shear flow, g;iL, at station-

j i=O i=l i=2 i=3 i=4 i=5 /

____

0 0.2927 0.0666 0.0060

i :I2 .oi30 .0523 .0323 .0256

0.0046 0.0023 i-, 0.0014 ~

.0116 .0168 .OlOO ,006i .0042 0064

i -. .0056 0092 .0290 .OlOl .0289 .0201

j

i ~

-_ -.0117 0127 -. -. 0094 W26 .0005 MI97

.0167 0186 g i %;

.0122 .0062 1 0061 7 -.0098 -. 0119 -. 0061 .0002

9” -. -. 0085 OOii -. -. 0102 0117 -. -.Olll 0098 - -. .0080 0047 -: -_ it% 0045 -. : 0021 Ei ; :: -. -. Mli2 0068 -. -_ 0071 0086 -. -. 0091 0106 -_ -_ 009i 0096 1: gg -.0064 -. 0046

12 -. 0061 -_ 0059 -. 0074 -. 0087 -. 0086 13 -_ 0052 -. 0049 -. 0056 -. 0072 -. 00;s 1:;;;: ; :,” -. --.cO30 0042 -. --.oa9 0040 -. -. 0028 0041 -. -. 003i 0054

:; -. -. 0018 OOOG -. -. 0018 0006 -. -. 0005 0016 -. - OOOi 0021

Stringer load, pii/L, at station-

i=2

-

.-

- i=3 i=4 i=5 i=F

_- 0.0710 0.0559 0.0503 0.0467 0.0443

.0626 .0552 .0494 .0460 .0438

.0580 .O.W8 .0468 .0441 .0423 ,045s .0446 .0426 .0410 .039i .0326 .0366 .03il ,036i 0362 .0207 ,027s .0305 .0315 ,031s .0113 .0191 .0234 .0257 ,026s .Q346 .0115 .0164 .0195 .0214 .ooo4 .0054 .OlOO .0134 ,015s

-. 0017 .0039 .0046 OOi9 .0104 -. 0025 -. CO19 .0004 .0031 .0054 -. Oil26 -. 0034 -. Ml25 -. 0008 .OOll -. 0024 -. CO40 -. 0043 -. 0036 -. 0025 -. CO22 -. co41 -. 0052 -. 0055 -. 0052 -. Ml22 -. 0039 -, 0056 -. 0086 -.UOil -. 0022 -. 0038 -. 0056 -. 0072 -. 0084 -. 0023 -.@I36 -_ 0054 -. OOi4 -. 0092 -. 0023 -. Ccl35 -. 0053 -. 0074 -. 0096 -. 0623 -.cQ35 -. W52 -. OOi4 -. 0097

i=G --

-0.0001 -.cm3 -. 0005 -.oooG -.OCO6

-:Ei -. Oml

.OOOl

.OcQ3

. ow4

.oOil4

.0004

.Om3

.c002

.OCOl

.OCOl

.OOOO

-

--

-

T i=O i=l -

0.0682 .1070 .oGo9 .0340 .0171 .M)70 .0016

-.cMl7 -. 0013 -. 0012 -. 0010 -.OC08 -.0008 -. 0009 -. 0010 -. 0011 -. 0012 -. 0012 -. 0012

i=l i=2 i=4 i=3 i=5.

: 3 4 5 F 7

;

::

:z 14 15 16

:i

-0.1123 O.OQ64 -0.0021 -. 0203 -. 0118 -. 0319

.0074 -. 0084 -. 9032

.0123 -. 0025 -. 0028

.cm.3 OOli -. 0013

.0038 .0035 .0002 moo .0033 .0013

-. 0017 .0021 .0+x7 -. 0018 .OOQ7 .0015 -. 0012 -. 0903 0010 -. 0004 -. 0007 .Oal4

0001 -. 0908 -_ 0001 .0002 -. ocQ5 -. 0004

0002 -. 0002 -. 0005 .CCfJl 0000 -. 0004 .O+lOO 0001 -_ ml3

0000 0001 -. owl oow .cwd 0000

-0.9cil3

1: ;:; -. WI5 -. 0012

-:E .0006 .cKnls .0009 .0007

:E: -. ooo2

1: g$

I:%;

2EE -XI68 -.oml -. 0008 --.CHXHi --.0xl3

.ooOl

.cHIO4

.cKloG

2g

.oOcn

.OONl -. IN01 -. Ocill

.m

-

1 l- Shear flow, qi]L, at station- Shear flow, qii, at station-

i i=l i=2 i=3 i=4

-0.0014 0.0076 0. cm8 0.0018 .0430 .0149 .0087 .0052 .0459 .0222 .0126 OOi9 .0341 .0234 .0146 .0095 .0186 .0194 .0141 .0099

CO48 .0123 .0114 Oil89 -. 9948 .0045 .0971 .006i -. 0101 -. 0025 .0022 .0036 -. 0118 -. 0074 -. 0025 Oil02 -. 0113 -. 0101 -. 0062 -. 0031 -. 0098 -. 0107 -. 0085 -. 005i -. 0080 -_ 0499 -. Ml94 -. OOi4 -. cQ64 -. 0383 -. 0090 -. 0082 -_ 0050 -. 0965 -. 0078 -. 0079 -. 0038 -. 0047 -. 0062 -. 0369 -. 0027 -.OQ32 -_ 0044 -_ 0052 -. 0016 -. 0018 -_ 0026 -. WI33 -.oOQ5 -. CC06 -. 0009 -. 0011

i=O i=2 i=3 i=4 i=5 i=l

0. i903 0.0974 O.wO6 .0150 -. 0214 w91 .0557 -, 0299 -.WO9 .0409 -. 0141 -. 0061 .0164 .OCQB -. 0058

-_ 0013 OOi7 -. 0028 -.uoaa 0080 .im5 -. 0089 MI48 .0926 -. 0056 0010 .OQ30 -. 0020 -_ 0014 .0022

.Oal4 -. 0023 .ouo9

.0012 -. cm9 -. Mx)2

.OOll -. 0011 --.OGilS

.0006 -. 0003 -. 0009

.0002 0001 -. rnIO7 -.rGQl .0003 -. 0004 -. 0001 .MM2 ouoo -_ cm 0001 .0902 -. 0001 0001 .0003

i=j

0. CO12 .0034

%; I

.0066

.0055 ,003F .0012

-. 0013 -. 093G -. 0055 -. Oll6G -. OOfi9 -. 0064 -. 0051 -. 0033 -. 0012

i=O

0.2159

: Ez .0140

-. w31 -. 0101 -. 0117 -. 0110 -. 0096 -. 0084 -. 0075 -. 0067 -. 0059 -. 0050 -. 0041 -. 0030 -. Oil18 --.ooOG

0

a

i

i

s' 9

10

:6

:: 15 16

:i

0.0033 .0015 .Mx)8

-.wo9 -. 0021 -.0023 -. 0015

-SE .0013 .0013

:E -. cm1 -. cMxl4

1: “4: -. 0003 -. wo3

0. 0397 .0006 .0004 .%I01

-. 0003 -.Oixl5 -.CHlO6 -.CCiIB -. cclcl4 -. I9001

.lxJo2

.0004

.OOO5

.9004

.ooo3

-:E -.c004 -. 0004

“:?I::: . lHN5

-. 0901 -. ooO8 -. 0011 -. 0011

I:$$ .cPN3 .cm7 .OKI8 .0007 .ooo5 .Om2

-. oool -.MM

-:EE

Page 46: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 17.-LOAD DISTRIBUTION DUE TO A USIT PERTURBATION LOAD

[B = 30; C = 2 X 10’; m = 361

(a) Concentrated perturbation load on stringer j=O at, ring i=O

(h) Distributed perturbation load on stringer j=O between rings i= 0 and i= 1 (c) Shear perturbation load about shear panel (0,O)

i

-

0 1 2 :5 4

: 7

: 10

t; 13 14

ii 17

-

Stringer load, pii, at station- Stringer load, pii/L, at ststion- Stringer load, pi:, at station- / -

i=2 i=3

- i=4 i=5

j

-

0

:

:

i

;

1:

ta

:“4 15 16 17 18

O: %i .0533

: E .0153 .0093 .0051 .0022 .0003

-. 0009 -. oolfi -. 0020 -. 0021 -. 0023 -_ 0024 - .0024 - PO24 -. 0024

0.0692 .0640 .0525 .a404 .0301 .0217 .0149

: %G .002’1

-. 0002 -.0017 -. 0027 -. 0033 -. 0036 -. 0038 -. 0038 -. 0039 -. 0039

, , , !

L I I - -

i=l .-

0.1585 .0925 .0411 .0219 .0124 .0068

: % .Ow2

-. 0004 -. 0007 -. 0008 -. 0009 -. 0010 -. 0010 -.OOll -. 0012 -. 0012 -. 0012

i=2 -__

0.1192 .0850 .0490 .0296 .0184 .Olll .0063 .0031

0010

1: ~~~: -. 001; -. 0015 -. 0016 -. 0016 -. OOli -. 0018 -. 0018 --.0018

-

_-

- 7-

--

- -

_- i=4 i=5 i=6 i=l i=2

-~-

0.0632 0.0550 0.0502 .0596 .0531 .0490 .0510 .0481 .0456 .0411 .0413 .0407 .0319 .0342 .0351 .0239 .0272 .0291 .0171 .0207 .0232 .0115 .0149 .0176 .0069 .0099 0124 .0032 .0056 .0077 .0005 .0021 0037

--.0015 -. 0007 : 0004 -. 0028 -. 0027 -. 0023 -. 0037 -. 0042 -. 0043 -. 0042 - .0052 -. 0059 -. 0045 -. 0058 -. 0070 -. 0046 -. 0062 -. 0077 -. 0047 -. 0064 -_ 0081 -. 004i -. 0065 -.0083

a 3 4 5 6

i

1: 11 12 13

--~ -__

-0.2188 -. 0236

.0093

.0146

.0124

: kE .0003

-. 0014 -. 0018 -. 0016

I --.OOlO - .0004

14 0000

:i .0002 0002 17 .0002 18 .OOOl

-0.0323 -. 0305 -. 0106 -. 0005

.0040

.0054

.0051

.0038

.0022

.0008 -. 0002 -. 0008 -. 0010 -. 0009 -. 0007 -. 0004 -. 0002 -. 0001

i=4

-0. oil29 -. 0064 -. 0062 -. 0043 -. 0021 -. 0002

.OOlO

.0017

.0020 OC18

: % .0004

0000

I: L% -. 0002 -. 0001

i=5 i=6

-0.0007 -. 0019

1: :;; -. 0019 -. 0012 -.0005

.OQOl

2% .OOll .Cilll

0010 .0008

2% .0002

0001

i=l

0.2893 .0640

0235 .0115 .0060 .0030 .0013 .0004

-. 0001 -. 0002 -. 0003 -. 0003 -. 0004 -. 0004 -. 0005 -. 0005

1: ;g; -. 0006

i=3

0.0790 .0701 .0532 .0384 .0272 .0187 .0122 .0073 .0037 .OOll

-. 0006 -. 0017 -. 0024 -. 0028 -. 0030

1: ii;: -. 0031 -. 0031

i=3

-0.0079 -.013i -. 0097

I: g;; .0017 .0028 .0030 .0027 .0019 .OOll .a003

-. 0003 -. 0006 -. 0007

1: g$ -. 0002

O.OS84 .0559 .0495 .0415

0333 .0258

: E3 .(I084 .0044 .OOl2

--.OOll -_ 0028 -. 0040 -. 0048 -_ 00.52 -_ 0054 -_ 0055 -. 0056

-0.0014

1: $)g -. 0033 -. 0022 -. 0010

0000 .0008 .0012 .0014 .0013 .oOll

: k% .Cm3 .OiMl

:~~~

.0164 1 .01X7 1

-. 0070

-. 0073 -. 0074

I -. 0084

-. 0089 -_ 0091

I -

I- Shear flow, *ii, at station- Shear flow, t&L, at station- Shear flow, qc]L, at station- j

-

0

a 3 4 5 6 7

i 10 11 12

1: 16 16 17 18

I- i=4

0.0051 .0036 .0005

-. 0018 -.0028 -. 0027 -. 0020 -. 0009

0001 .0008 .OiI13 .0014 .0012 .OQO8 .0003

-.0002 -.0007

3%

-

_-

-

O: EF3 .0008

-:Ei! 1: z:; -. M)ll

-:EF .0005 .0008 .0008 .0006

:%Z

I:$$$ -. 0005

j

- - 0 1

i 4 5 6 i

! 10 11 12 13

:z 16 17

i=l N-

--

- i=2

.- 0.0113

.0245

.0253

.0202

.0137

.0073

.0017 -. 0027

1: g;; -. 0083 -. 0082 -. 0075 -. 0064 -_ 0051 -. 0036 -_ 0022 -. 0007

-

i=l

-

_- i=O i-3

i=O

0.5997 .0372 .0845 .066C .0367 .0120

-. 0037 -. 0105 --.Olll -. 0084 - .0047 -. 0017

.0004

.a012

.0013

.0009

.0004 0000

-. 0002

i=2

0.0307 .0063

-. 0105 --.0114 -. M)75

-: KG .0032 .0039 .a034 .cm3

0010 -. 0001 -. 0009 --.OOll -. 0011 -. 0099 --.OaO7 -. 0006

i=O

0.1708 .0783 .0372 .0153 .0029

-. 0039 - .0073 -. 0086 -. 0088 -. 0084 -. 0078 -. 0070 -. 0061 -. 0051 -_ 0041 -. 0030 -. 0018 -. 0006

i=3

0.0054 .0135 .0165 .0155 .0122 .0081 .0038

0000 -. 0032 -. 0055 -. 0069 -. 0075

I: ii;: - 0056 -. 0041 -. 0025 -. 0009

i=4

0.0031

: 2:; .0113 .0099 .0074 .0044 .0013

1: g:: -. 0054 -. 0064

1: ;;g -. Oil55 -. 0042 -. 0027 -. 0009

i=5

0.0019 .0053 .0074 .0082 .0076 .0062 .0041 .0018

1: g4” -. 0041 -. 0052 -. 0057 -. 0058 -. 0050

1: ;;;g -. 0008

i=l i=2

0.0851 0.0201 .0641 .0350 .0387 .0308 .0205 .0220 .0082 .0132

0000 .0057 - .0050 -. 0002 -. 0078 -. 0045 -. 0089 -. 0071 -. 0089 -. 0084 -. 0083 -. 0087 - .0074 -. 0082 -. 0063 - .0072 -. 0052 -. 0060 -. 0041 -. 0047 -. 0029 - .0033 -. 0017 -.OO20 -. 0005 -. 0007

i=4 i=5

0.0041 0.0024 .0105 .0066 .0135 .0090 .0133 .0096 .Olll .0087 .0078 .0068 .0042 .0043 .0008 .0016

-. 0022 -. 0009 -. 0046 -. 0031 -. 0061 -. 0047 -. 0070 -. 0058 -. 0071 -. 0062 -. 0066 -. MI60 -. 0056 - .0053 -. 0042 -. 0041 -. 0026 -. 0026 -. 0009 -. oil09

0.1438 -_ 0426 -. 0358 -.a159 -. InI07

.0075

.0098

.0082

.0047

.0012 -. 0014 -. 0027 - .0029 -. 0024 -. 0015 -. 0036

0000 Or04

.0006

0.0108 .0058

1: g;; -. 0051 -. 0036 -. 0017

0001 .0014 .0021 .0022 .0018 .0012 .0005

-. 0001

1: EFJ -. 0012 -. 0012

0.0334 .0487 .0364 .0230 .0118 .0034

-. 0026

E: g: -. 0090

I: g$; -. 0068 -. 0056

1: g: -. 0018 -. 0006

-

_- _- 0.2107

.0826

.0355 0126

.0007 -. 0053 -. 0078 -. 0086 -. 0085 -. 0081 -. 0074 -. 0067 -. 0059

1: 0”;;: -. 0030 -. 0018 -. 0006

0.0079 .0184 .0206 .0179 .0131 .0079 .0029

-. 0012 -. 0044 -. 0065 -. 0076 -. 0079 -. 0075

1: ii;; -. 0039 -. 0024 -. 0008

- -

Page 47: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 18.--LOAD DIS’l’RIBUTIOX DUE TO A USIT PI’RTURBATION LOAD

[B = lU0; C = 2 X 10’; m = 361

(a) Concentrated perturbation load on stringer j=O at (b) Distributed perturbation load on stringer j=O ring i=O between rings i= 0 and i= 1 (c) Shear perturbation load about shear panel (0,O)

I- Stringer load, pii. nt station-

i=2 i=3

- i=4

-

--

-

Stringer load, pii,at station- Stringer load, ML, at station-

i=l

0.2564 .0714 .0251 .0128 .0077

:%i .0019

0010 .ooo4

I;%$

-.oooB

3z -. 0011

I: g:;

i=O i-6 j

0 1 2

4”

i

s’ Y

10 11 12 13

:“5 16

:i

i

4 3

; 6

i 9

:‘: 12

i: 15 16 17 18

j

0 1 2 4” 5 6

i 9

::

:3” 14 I5 1F 17

- -

_-

-

--

-

_ ._

-

- -

_-

- i=5

(‘: Kz .OR58

: Ei .0202 .oml .OlO9 .OQ74 .OU46 .w22 .ooOl

-_ OOlF --.UO29 --.@I40 -.0048 -.OO53 -.0057 -.0058

0: g;; .u494 .U349 .0252 .0185 .U136 .0097 .0065 .OO39 .cQ17

-:i% -.0027 -.Oil36 -.0043 -.0048 -.wJo -.0051

-

- -

--

-

i=5 i=I

0 3611 .a437 .Ol33 .0+X6

:%i .OU15 .om9 .OOa5 .OOO2 .cml

-.oM)2 -.0403 -.Om4 --.wJ5 -.OOO5

I:$$; -.ocd

i=2 i=3 i=4 -__ ---

0. 1991 0.128i 0. 0948 .0787 .0796 .0729 .0336 .a444 .0486 .Ol83 02il .a329 .a114 .0180 .0231 .0075 .Ul24 .016i .0050 .0086 .0120 .0032 .0058 .M)84 .0018 .OU3F .0055 .0008 .0019 .uO32 .COOl .moF .0013

--.0005 --.ouo5 -.0003 -_ uoo9 --.0013 --.UO15 -.UQ12 --.lM19 -.0025 --.0014 -. 0024 -.0032 -. OOlF --.0027 -.W38 --.oOli --.0029 -.0042 -. 0018 --.UMl --.w44 -. 0018 -. 0031 --.w44

i=5 i=6 i=D

0.0659 .0599 .0599 .0382 .0297 .U229 .0175 .u130 .0092

uos9 ooau

.OOO6 -.0015 -.Ou32 --.0046 -.uu57 --.0064 --.UUR8 -_ uuio

i=2 --

-0.1190 -. 0409 --.0089

.OOll

.0049 0061 uo59

.0051

.UO38

.w24

.cm2

.0002 --.0005 -.oKls -. 0010 -.ow9 -.OCil6 -.OQO2

i=3

-0: g;; --.0132 -.0037

.OOU8

.0029

.OQ38

.0039

2% .0021 .0014

2% -. Oml --.ooo3

Z:gg

i=4

-0: g;; -. 0127 -. 0056 -.cm5

:Ef .0027 .0029 .OU27 .w24 .0019 .0014 . 0010 .UOO6

:Ei .Ocill

___

-0.0103 -. 0147 -. 0106 -.OQ59 --.@I26 -.6#04

.OOlO

.0018

.0022

:%i .0021 .0018

co14 .OOll .OOQ8 .ow4 .OOOl

i=l

-0.3133 -.019fi

.0080

.U128

.0123

.0097

.0065

.UQ34 .OOll

--.OOO5 -.w13 --.uo15 -.0013

-:k% --.noo3 -.OOOl

.UUQO

-

18 I-

0.1547 .0317 .0404 .0232 .Ol49 .OlOl .Km .w45 .0027 .0013 .#303

-.0005 -.OOll -. 0016 -. 0019 -. w21 -.W23 -.M)24 -.W24

0.1079 .0766 .0473 .0304 ,020s .0147 .0104 .0071 .0046 .0025 .Mlo9

zz -.0022 -.@I28 --.w33 -.@I35 -.0037 -.0037

0.0704 0.0620 .0626 .0575 .0493 .0432 .0375 .0388 .0285 .0307 .0217 .0241 .0163 .0187 .0120 .0140 .ciI84 .OlOO .0052 .W65 .lW26 .0035 .OOa3 .WO8

-.0015 -.0015 -.0031 --.w33 -.0043 -. 0049 -.@I52 -.W61 -. 0359 -.OOFS -.0063 -.w74 -.0064 -.OU76

-0.0055

I: ;;!j -. uo55 -.0030 -. 0011

.0002 OQll

.0017

.oom

.0021

.ou20

.0019 CmG

.0013

. 0010

.UiM6

.Oca2

1 Shecar flow, ‘lij, at stntion-

j Shear flow, q,yL, at station-

i=2

0.0633 --.0074 -.0157 -.0114 -.UQ66 -.0025

.0007

.0029

.0040 i 1.g;

.0027 OOIG

5g -.0021 -.0025 -.W26

-

--

-

-__ i=l

i=3

--

0.0302 .0032

-.0070 --.co75 -.Ml56 -.w34 -.0014

.ooo3

.0015

.0022

.0024

.0022

.Wl7 Mu0

.lKMJ2 -.0006 -. UOll -. w15 -. 0018

.~ i=U

-

_-

-

-

--

-

.-

-

-

-

i=4

0.0160 .oQKl

-.0025 --.0046 -.0042 -.0031 -.lM19 -.UOO7

:% .cNll3 .w13 .UOl2 .0008 .0004

-.cKMl

z:$g -.0006

i=5

Cl.0094 .0046

--.0004 --.0026 -.0030 -.OiI2F -.0019 --.0012 --.m5

.C001

.Ow4

.WOB

.Uw7

.UCQ6

.UQO4

.cQO2

-:% -.0002

i=U i=l

u.4304 0.1425 .u570 -.0518 .0962 -.0305 .u803 -.0136 .a547 -.0020 .0301 .co54 .0106 .0091

--.0023 .009G --.0092 .0080 -.u113 .OQ52 --.UlU3 .0023” -.0078 -. 0001 -.0049 -.caI7 -.W23 --.Oil25 --.0004 -.OO26

.CCQ8 -.0022

.w14 -.0016

.0017 -.Oil12

.OO18 -. 0010

I

i=U i=l i=2 i=4 ix2 i=3

.O.U352 0. UliO O.ooYl .0343 .0237 .OlF2 .(I235 .0194 .01.53 .Ul47 .0137 .0119 .UO82 .0085 .0081 .@a33 .w43 .0046

--.a003 .ouu9 .UO16 --.0030 -.OQl7 --.0008 --.0048 -.cQ37 --.002i -.0059 - .00511 --.OU42 -_ 0063 --.uo57 --.uo49 --.(X163 -. w59 -.IW55 --.W5Y -.a057 -.ou53 --.IH)52 -.uu52 -, 0049 --.OO42 --.w43 --.LX!41 --.031 -.W32 --.0031 --.UUl9 -.OQ2u --.002u -.CQO6 -.rmO7 -.OOu7

i=5 __-

0. UUM .I)112 .(I119 UIUU

.uo73

.Uu45

.0019

-:iE -.uO33 -.W42 -_ no47 --.Ui147 -.w44 --.W38 -. uo29 -. 0018 --.OUi16

i=3 i=4 -__

0.0120 O.OU68 .a194 .0134 .0173. .0135 .0128 .OllO .w84 .0077

:E .@I46 .W18

-.co12

1:g z%i -.0037

-. 0053 -.ca45 --.w57 -.005u

-.0056 -.0051 3% -.0043 --.OO40 -.0032 -.0030 -.0020 --.OOlS --.0007 -.ooo7

i=5 __-

O.OU42 .OQ94 .OlU4 .Oil91 .0068 .uo43 .0020

-:zE --.003u -.Cil38 -.w43 --.0044 -.0042 -.OU36 -.0027 --.cQ17 --.ooO6

-

0.0234 .0285 .0216 .0144 .0085 .0039 .OKl4

--.CQ23 -.0042

I: g;;’ -.0062 -. 0059 -. 0053

I:%; -.0020 --.OKl7

0 1 3 4

i

; 9

:: 12 I3 14

:E 17

0.0810 .046l .025Y .0140 .ooM .OfJl2

-.uo22 -.0045 -.0059 --.0066- --.0067 -.uuw -.005x -. uo50 -.0040

zLE!I -.OOQ6

0.1389 .0515 .0249 .OlM .Oil41

-.Om7 -.W36 --.oQ54 -.0083 -.0066 -.OU66 --.OO62 -.M156 -.0+4x. -.omY -.a028 --.0017 --.OUUO

0.1218 .0504 .u253 .0125 .0048 .Mw)2

--.OQ33 --.0052 -.0062 -.0066 -.OOFG -.OOG2 -.005G -.0048 -.0039 -.0028 -.0017 -.ooO6

0.0508 .0405 .0251 .0147 .0075 .ooz4

-.ool3 -.0039 -.0055

3% -. 0065

2% -.0042 -.0031 -.0019 -.0007

Page 48: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE IX-LOAD DISTRIBUTIOS DUE TO -4 UXIT PI~RTURBATIOS LO.4L

[B=300; c=2x104; m&=36]

(b) Dictributcd perturbation load on stringer j= 0 bct.wcen rings i= 0 and i= 1

(a) Concentrated perturbation load 011 stringer j=O at ring i=O

_~ -- --~____ -~-- Stringer load, pii, at sletion-

(c) Shear pcrturbat,ion load about shear panel (0,O) ,-

Stringer load, pii, at station- Stringer load, piilL, at station- -

--

-

_-

-

i=O i=l _-

0.3358 .054X .0151 .0075 .cQ46 .0031 .0022 .cQ15

0010

:E -. WI01 -. Ow3

I:%‘: -.lnm -.ooo9 -. 0339 -. 0010

i=2 .-

0.2370 .0720 .0274 .0144 .0091 .0063 ,0045 .0032 .0021 .0013

2%

-:E --.om3 -. 0016 --.0918 -. WI9 -. 0019

-

i=3 i=4 i=5 -__ _-

0.1110

: II::: 0291

: 0201 0146

.0108 on80

.0056

.0036

.0019

.0004 -. 0010 -. 0021 -.0030 -.0038 -.w43 -. 046 -.0047 --

i=6

0.6947 .0715 .0474 .0321 .I)229 .0169 .0127 .0094

0067 :0044

:iE: -. Do10 -. 0024 -. 0035 -.0044 -.W50 -. 0054 -. 0055

-

--

-

I- --

-

T-

--

-

i=5 i=2 i=5 i=G i=l i=fi

0.1237 0.1023 .0771 ,0735 .0439 ,0466 .0272 ,030; .0185 .0215 IO134 .0158 .om9 ,011s .0072 .0087 .OQ51 .0#62 .OO32 .QO40 .0017 .0021 .0003 .0005

-. 0099 -. 0010 -. 0019 -. 0022 -.rma -.0033 -. 0034 -. 0041 --.0039 --.0647 -. 0042 -. 0050 - .0043 --.0051

i=2

0.2824 .oml .0210

:E .0047

w33 ,0023

:%i .ow4

-. Otwl -_ Olxl5 -.OOQ8 -. 0010 -. 0012 --.cQYd -. 0014 -. 0014

i=3

0.2042 .0761 .0321 .0174 .0112 .0078 .0056 .OO40 .0027 .ool? .cNJ8

-:E -. 0012 -. 0016 -. 0x20 -.0022 -. 0024 --.@I24

i=4 i=l -__

-0.3796 -_ 0141

.ooGo

: FE .0094

W76 .0054 .0033 .Ool6 .Ow2

--.OQO7 -. 0011 -. 0013 -. 0012 -. 0010 -.cwG -.Oc+2

i=3 i=4

-I _-

-

--

/

,

/ -

- .-

-

- 0. i76n

.078ti

.0362

.0203

.0132 0093

.0067

.0048

.0033

.0021

.oolO

-:% -. WI4 -, 0019 -.0024 -.Ml27 --.002E -.om --

0. 1373 0785

: 0420 .0252 .0169 .0121 .0088 .Oix4 .0045 .0028 .0014 .coo2

-.ooo9 -. 0018 -.0025 -. 0031 -.0035 -. 0038 -.0038

--

0. 4110 .0288 .0077 .0038

0023 : N16 .Wll .mO7 .MKl5 .wo3 .CGQl .oow

-. 0002 -.0003 -.ooo3 --.0004 --.ooo4 --.Om5 --.OMJ5

0.1552 .0789

M93 .0228 .0151 .0107

: %“, .w39 .0025 .0+x2 .MlOl

-. OWE -. 0016 -. 0022 -. 0027 -_ 0031 -_ 0033 -, Oil34

-0.2183 -_ 0387 -.WGO

.OOlB

.0043

.0054

.0056

.OQ52 w45 00%

.OQ26

.OQl7

:E .woil

-. Oil02 -.lm2 -. cm1

-0.0759 -. 0381 -. 0140 -, 0045 -. 0034

.0016

:?I;; CO35

2.E .0030 .omG .0022

cm7

2%; .0032

-0.0288 -. 0257 -. ol38 -. 0063 -. 0023

;tJ

.0027

:iE .0029 .&I27 .co23

:3::

:E

-0.1274 -. 0421 -.Ollli -. 0022

.0014 N31

.OQ38

.0041

.0040 ,037 .0032 .0027 .0021 .0016 .ooll .ooos .ocQ4

0001

-0.0462 -. 0319 -. 0145 -. 0057 -. 0015

.OOc7 0010

.0027

. Co31

.0032

2%

2% .OOlQ .0014

:%

-

i

- Shear flow, pii, at station-

Shear flow, qi:L, st stntion- Shear flow, qi&, at station- -7 --

i=l i=2

0.1135 0.0732 -. 0479 -. 0177 -. 0233 -. 0142 -. 0112 -. 0087 --.oozl -.W49

.w31 -. 0019

.0071 .oom

.ooQfJ .0022

.OO91 .0034 0080 0039

.oo60 .OQ38 II036 .w31

.0012 ,021

I$$ -:E -. 0036 -_ Ml15 -. 0044 -.0024 -. 0048 -. 0030 -.cO50 -. 0033

-

-

_-

-

i=3 i=5

-

-

-

_-

-

-

-

_-

-

- i=l i=l i=3 i=5

i=O

":ii% .0970 .0849 .0651 .0442

0254 : 0103

--.Om5 -. W72 -, 0103 -. 0107 -. 0094 -. 0071 -. w45 -. 0021 --.0002

0010 .9014

i=3

0.0466 -. 0049 -. OQW -. 0065

2% -. 0610

.wol

.ooOQ

.w15

.0017 ,016 . ooli . elm, .cKl!x

I:gg -. 0011 -. w12

i=4

0.0304 ,000s

-. 0654 -. 0049 --.00X -. CQ25 -. 0015 -. wo8 -.OCOZ

.ooo3

.cKlQG

.Mx)7

2% .0004 .m2

-:E -. 0662

i=O i=2

0.0305 0.0194 .0239 .0195 .0151 .0137 .cm2 .008R .cQ51 .0051 .0021 .0025

--.0002 .0002 -. 0018 -. 0014 -.w30 - .OO26 -. 0038 -. Ml34 -. 0042 --.0038 -. 0043 -. 0040 -.0041 -. 0039 -. 0037 -. 0035 -. 0031 -. oil29 -.W23 -. 0022 -. 0014 -_ 0014 -. 0005 -. 0005

i=4

0.0127 .0157 .0121 .0082 .0050

:‘fJ% -.ooll - .OO22 -. 0030 --.0035 -_ 0036 -. 0036 -.omz -. 0027 -. 0020 -_ 0013 -.cQo4

i=5

0.0086 .0126

: ii$! ,004s .0025 .oix+i

-. ow8 -. 0619 -. 0027 -.0032 -.w33 --.co33 -.0030 -. 002.5 -.cQlS -. 0012 -.Lm4

i=O

0.089n ,0314 .0160 .0084

0637 : wo6

-_ 0015 -. 0030 -. 0940 -_ OQ45 --.OQ47 -. 0046 -. OQ43 -. 0037 -. 0031 - 6023 -_ 0014 -_ NO5

i=2

0.0391 .0261 .0156

cm2 .0049

0618 -. 0004 -. 0021 -_ w32 -.0040 --.0044

-:E -. 0038 -. 0031 -. 0024 -_ 0015 -.0005

i=4 --

0.0244 0.0158 .0216 .0176 .0144 .m30 .0090 .0086

0051 : 0022

.oo51

.0024 .OOW .0003

-. IYJiG -, Ml12 -. 0028 -.0024 -. 0036 -. Ml32 --.0040 -.0036 -. 0042 -. 0038 -. 0040 -. 0037 -. 0036 -_ 0034 -. 0030 -. w28 -. 0023 -. 0021 -. 0014 -. 0013 --.0005 -.0004

0 1

;

i 6 7

i

:: 12

:: 15 16 17 18

0.0204 .OQ31

-. co31

1: 2;: --.0024

1: g:: -.ooOG

-:E .ooo2 .0003 .OcQ4 .Om4 .oQo4

:EE .cm3

-

0

; 3

z Ii

; 9

:: 12 13

:“5 16 17

0.0494 .0283

: i% .0@47

WI6 --:mQT -. 0023 -.oim -. 0042 --.0045 -. 0045 -. 0043 -.0038 -, 0032 --.0024 -. OQ14 -. OliO5

0

: 3 4 5 6 7

i 10

t; 13 14 15 16 17

0.0643 imil

.0162

.w?Nl

.0044 ,012

-. 0010 -. 0026 -. w37 -_ 0043 --.0046 -. 0046 -. 0043 -. 0038 -. w31 -. 0023 -. 0014 -.OGQ5

0.0105 .0140 .0114

tn70 .0049 .0025 .OKl5

-. 0010 -. 0021 -.cmQ -.w33 -.0035 -. 0034 -. 0031 -. 0027 -. 0029 -. 0013 --.Kn4

0.0821 .(I312 .OlGl

OO8fi .w39

-1 ‘fg! -.oiJ29 -_ om9 -_ 0044 -. 0047 -. 0046 -. 0043 -_ 0038 -. w31 -. 0023 -.0014 -. 0005

Page 49: T, NATIONAL ’ ” -. .> ,. ,. :

-

TABLE 20.-LOAD DIPTRIBUTIOS DUE TO A UNIT PERTURBATIOS LOAD

[B=1,wo; C=?XlO’; rn=36]

(a) Concentrat,ed perturbation load on stringer j=O at (b) Distributed perturbation load on stringer j=O ring i=O between rings i=O and i= 1 (c) Shear perturbation load about shear panel (0,O)

-

-

--

-

Stringer load, p&, at station- Stringer load, pii, at station- Stringer load, p<j, at station-

i=3 i=4 i=5 i=R ---

0.2670 GGYl7

.G232

.a119

2% .a039 .cm9 .oozo .0013 .oM)7 .OOGl

-.Om4 -.MIOS -. 0012 -. 0015 -. 0017 -. 0018 -. 0018

0. 2237 .a731 .0290 .a154

:kE .0051

W38 GO27

.@I18

:E -. cHxJ5 -. 0010 -. 0015 -. OGl9 -. 0022 -. 0024 -. cm4

0. 19ilo .0769 ,033s .0187

%!;

.0047

.0033 M)22

.a012

.ooFz -.WOG -. 0013 -. 0019 -.OQ23 --.0027 -. 0029 -.0030

0. 1037 .078’L

0378 : 02lG

: 0”::; .0075 .00&i .W40

0026 .0014 .a003

-.cwG -. 0015 -. GQ22 -.cm27 -. 0032 -. 0034 -. 0035

-

:: 3

: G

i 9

:: 12 13 14

:i 17 18

-

--

-

-

.-

- -

--

- i=2

---

0. 3f0i : y;':

: !E .0027

0020 .0014

0010 :gj;

woo --.oQoz -. Ow4 -. OOOG -.OilOS --.wo9 -.ocQ9 -. 0010

i=3 _---

0. 2919 0599

,019n

:Z M)44

: 0032 0024 0017 CO11

.owG

.Mw)l -_ am3 -_ 0007 -. 0010 -_ 0012 -. Oil14 -. 0015 -. 0016 ~.__

i=4 i=5 i=G

0. 2447 .0698 .0262

: it: .WJGl .a045

w33 0024

:K .OOG2

-. 0004 -.cnxl9 -. GO14 -. 0017 -. 0019 -. w21 -. 0021

0. !zOGl 0752

.a315

.a171

:Ks” ,005s .0042 .a030

: E wo2

-.ooo5 -. 0012 -. GO17 -. Kl21 -. 0024 -. 0026 -. 0027

0. 1763 07i7

: 0359 0202

: 0132 .0094

: l?E? .0037

: E

-:g -. Gal4 -. GO20 -.Nm -. 0029 -. 0032 -_ 0032

i=l

-0.4299 -_ 0083

.a042

.ow9 ,007s ,007s .@I70 .Ga59 .0046 .0032

0020 0010

.Qwz -. ooo3 -. rKm5 -.OO+I5 -. lml4 -. 0001

i=2 i=5 i=4

-0.1745 -. 0423 -. 0104 -. 0021

1%

:E .a041 .CO40 .OG38 .a)34 .a029

5%

2%

i=G i=3 i=l id __-

0.4001 0.3248 .0523 .a530 :E . 0162

.a081 .a026 .0051 ,001s .0036 .0013 GO26

0310 .OlM7 :%i .OGo4 .OW9 .lwO2 .IXW

-:E .OOOl

-.0003 -.0003 -.ooo6 -. cm4 -. cm3 -.ooo5 -. 0010 -.woG --.OOll --.m -.oolZ --.oooG -.c013

i=l ----

0.4477 Oli3

: 0042 0021

.0013

.a009 ow7

.a005

.cKlo3

.Gca2

.OOOl

-:% -. 0001 -. m2 -_ OQO3 -_ oooZ3 -_ wO3 -.0003

-0.3167 -. 0291 --.@I33

GO16 .0035 .cKl44 .GQ48 .GG48 .0046 .0043 ,903s .0032 .wzG

GO21 .rQl5 .ooll

:E

-0.2345 -. 0387 -. 0075

-:% .0031 .a038 .@I41 .w3 .0042 .0041

:%i .Mm .0022 .0016 . 0010 .cKlO3

-0.1305 -. 0425 -. 0124 -.a033

.0002

.0019

.w!z9

.lm35 ,038 .a039 ,003s

:k% .a029 .om4 .0017 .OOll .ooo4

-0.0981 -. 04OG -. Ol3G

I:gg . Ml15 .W%

GO32 .0036 .0037 .@a37 .0035 .0032 .wzs

:iE . 0010 .cm4

11

:i 14 15 16 17 18

j

Shear flOW, (Jii, at StatiOn- Shear Bow, giiZ, at stntion- Shcur Row, r/iiZ. at station- i-

i=o -

--

-

i=3 i=4 I- -

--

--

i=5 i=l

0.0761 -. 0361 -. 0158 -. 0082 -. cm9

.0015

.a049

.0071

.w82 0081

.0071

.lm3

.a030

-:Elt -. 0038 -. 0054 -.00+4 -.WS

i=2 i=O

--

0.0499 .a177 .@I92 .0051 .OQ26 .G@38

-. OcQ5 -. 0015 --.W!22 -.a026 -. 0029 -. 0029 -.WZ3 -. lm.5 -.KXXl -. 0015 -. 0010 -.wo:i

i=l i=2 i=4 i=2 i=3 ..__ _-

0.0329 0.0251 .0164 .a152 .w91 .w88

Ml52 .OQ51 W27 cm7

.wo?l .GQlO -_ Cm04 -. InnI -. 0013 -. ml2 -. 0020 -. 0013 -.w!24 --.@I23 --.w26 -.ww -_ 0027 -. 0026 -. CM326 -. 0024 -.oim -. 0022 -. WI9 -. WI8 -. 0014 -_ 0014 -.wo9 --.oiJox --.MJO3 -. ow3

i=4

0.0193 ,013s .w85 .0051 .a028

0011 -_ OfKll -. 0010 -. 0017 -. 0321 -. 0024 -. lH)24 -.wz3 -. 0021 --.WlS -_ WI3

I$$,

i=5

0.0149 .a124 .0081 ,005o .w28 .0012

-:% -.0016 -. 0020 -.oon -.w23 -. 0022 -. 0020 -. Mlli -, 0013 --.ooOS -_ Ml3

i=3

0. 0633 -. 0189 -.cma -. 0051 -. 0029

-:% . GO10 .0017 . 0021 . Cm1 . 0018 .0013 .cm

-. OOGl - .CQOE -. 0013 -. Cal7 -. 0018

0.0495 -. OIOG -.a069

::zg -. 0016 -.WiN -.wo4

:EEi

:E

.iiz

.wOl

0.0384

I:$$ -.0034 -. 0023 -. 0016 -. 0011

I:% --.Ocn2 -. 0001

.m2

.Gw3

:E

:E

:Et%

0. 0280 -. cm5 -.0044 -. 0032

Z:EZ -. w13 -. cull0 -. m7 -.ooo5 --.OW3 -. Gm2 -.cKlOl

:E .lMO2 .owz .0003 .ooo3

0 0.21M

4 :L% 3 .a835 i .0696

.a539

i .0384 .0244

i .a126 .0034

10 -. 0030 ::: -. 0070

-.cmo :: -.cm4

-.0@39 15 -_ 0078 I6 -.OOW 17 --.oi?iio 18 -. 0057

0.0219 .a145 .0087 . GO51 .w28 .Lmll

-5%

1: 2;:

1: 2;; -. 0024 -. 0022 -. 0018 -. a014

-:E

0

:: 3

5” 6

i 9

::

:; 14 15 I6 li

0.0169 .a131 .0083 .wYl .wzs .cml

-. Oml -. 0010 -. 0016 -. w21 -. w23 -. GO24 -. 0023 -.wzo -. 0017 -. 0013 -.CQOS -.mO3

Page 50: T, NATIONAL ’ ” -. .> ,. ,. :

‘I’ARI,E 21.-LOAD DIS1’RIRTJ’l’iON DUE TO A USIT PI~;R’I’I!RBA’I’IOi\’ I,O/\D

B=S; C=ZXlO’; m=3G]

(b) Distributed perturbation load on stringer j-= 0 bctwecn rings i=O and i= 1

-~~___--- .~~_. .~

(a) Concentrated pert,urbation load ou stringer j=O at ring i=O (c) Shear perturbat.ion load about shear panel (0,O)

1 i Stringer load, p;i/Z, at statioti-

i=Z i=3

0.0856 0. 0680 .a759 .0663 .0663 .0589 .a458 .0480 .0248 .0341 .0091 .0200 .0006 .lW85

-. 0023 .0012 -.a023 -.0022 --.0014 -.rm30 -.OoOS --.a025 --.wo7 -. 0019 --.oOOS -. 0015 -. 0010 -. 0015 -_ 0012 -.OOlG - .0013 -. 0018 --.0013 -. 0019 -. 0013 - wzo --.0013 --.0020

i=4 -- .~ l,. 0603

U58i .a544 : II;;; .0261 .0154

0066 :OOQ6

-.I,025 --.a035 -.0034 - om!l -.0025

I: ;g -.0025 --.0026 -.a027

1 I- --- - i=2 i=3 i=4

0. OSlli 0.0754 0.0639 .0928 .Oill OF22 .0663 .0622 .0566 .0378 .a474 .0476 .0160 .a302 .a359 .a034 .0150 .a234

--.0015 .OQ45 .a122 -. 0021 - .a009 .a039 -. 0013 -.0026 -. 0010 -. 0006 - 0023 -_ 0029 -.a004 -.a017 -. 0031 -.0005 --.OOlZ --.OQ27 - OOOi -, 0011 --.0022 --.OOQ8 --.0012 -. 0019 - .a009 -. 0014 -_ OO?O -. 0009 -. WI5 -_ 0021 -. 0010 -. OOlG --.w22 -. GO10 - ,a017 -.a023 -. 0010 --.w17 -.0024

j

1 2 3 4 5 G

i !)

10 11 12 13 14 15 16 17 18

__-

i=5 i=G ----

0.0552 .0522 .0494 .0446 .a331

I1301 : 0215

:“,:: Oil08

--.0026 --.a042 --.a046 --.a044 -.a041 -.0038 --.0036 --.0036 --.Oil35

i i=l

- -

.- i=5 i=l

-0. 1039 - .004u

0170 0106

.a013 -.ow7 -. 0023 --.OOnF

.a003

.a004

.0002 0000

-. 0001 0000 0000 0000 woo 0000

i=2 I --__ _- I 0.0052

-.0127 -.0058

.w21

.a047

.0030

.0005 -.wo9 -. 0010 -. 0005

0000 .a001

0001 0000 00042

: 0000 .WOO

0000

i=3 .__-

-0.0021 -.GO21 --.0032 -. WI18

.a005

.a019 ,001s ,000s

--.owl -. 000.5 -.a005 -. 0002

.OOOO 0001

.a001 0000

.OWO 0090

j-0

o.os15 .OM6 .0481 .a439

0380 : 0808 .0228

: ':E Owl

-.OOlS -.0040 - .a049 --.a050 -.m47 -.0043 -.0041 - .a039 -.w39

i=O i=l __c_

0. xlw o.fNO4 0 1221 0 :06li

H .a245 .a054

0 -. 0012 0 -. Ml19 0 - .a009 0 -.lxloz 0 -.wol 0 -, 0002 0 -.CaO4 0 -.w05 ,I -.LmO5 0 --.OW6 0 -.0006 0 --.0006 0 -.0007 0 --.a007

i=4

-0.0003 -.a013

1: ii:;

-:iE

:tK .ooO6 .a001

-.a003

1:g; -. 0001

:E .ww .MMO

i=6

-0. Oml -.OOiJ4 -.OOOG -.L?OOG -.OOQ5 -.coo3

0001 .0003 .0005 .0034

:z; -.OOQl -.om? -.woz -.GQOl -.OOGl

.OOW

- 0.0551

.OS40 0508

.I,454

.0380 .02!92 .a199 .0113 .a,43

- .0005 -.a032 --.0042 --.0042 --.0038 -.0034 --.a032 -.0032 -.0032 -.OO32

0.0575 .0562 .a525 .I,462 .03ii .I,278 .OliS .uo90 .a025

--.a016 -.a035 -. 0039

7: ;y;; -. 0029 -.0028 -_ 0028 --.a029 --.a030

0 a : R G 7

t 10 11

:i 14 15 16 17 18

-

0. 2241 ,I!,52 0380

: 0101 -. 0005 -. 0020 -.oooB

.0001 uooz

.OOOO --.0002 - .a003 -.WO3 --.a003 -.ouo3 -. 0003 --.a003 -.Cilo3 -. 0003

1 Shrer flow, qii, at stntion- Shcnr Row, qi;Z, at statiou- Shear flow, qiiL, at station-

j

0 1 2 3 4 5 6

; 9

10 11

ii

:“, lii Ii 18

i=O ---

0. 8324 .a402 .048!2 .a142

-_ OOil -, 0097 -.a043

0002 .a015

000!, Gil01

-.w02 -. 0002

uooo oow 0000 owe owo 0000

__- i=5

-

i=l

0. OFG3 .068G .a403 .0126

- 0031) -. 0092 -.0085 -. DOG3 -.004x 1: al;",:

- 003x -.,,a34 --.w2'J -.,I023 -. OOlli --.UOlO - .a003

i=4 j ,---

0 1 2

2

i

:

lB 11 12 L3

I :: 16

L 17

-

-

-

--

I I

- --

i=4 i=5

0. 0037. 0. eon .a092 .0062 .0132 .a092 .0146 .0108 .I,128 .a104 .0084 . 0081 .0027 .CQ45

--.oQ24 .oQo3 --.Cu59 -.OQ34 -. 0072 -. 0050 - lxnm - 00GG -. Cl,57 -. COG2 -. 0043 --.CO52 -. GG31 -.lMx -.I,022 --.0026 -.OiJ15 -. OOli --.a049 -.ow9 -.a003 -. 0003

i=O i=3 i=4 i=0

O.Zi.50 0855

: 0094 -. OlOi -. 0098 -.0058 -.0042 -.w44 -.004x -. 0048 -. 0044 -. 003!1 -. 0034 -.W28 -. 0023 --.0017 -. KILO --.a004

i=l i=2 i=3 i=2

0.0081 .a239

0340

:E! --.0015 --.a075 --.a087 -.0074 -.0056 --.0044 -. 0037 -. Oil32 - uozn --.0023 -.0017 - .a010 --.a004

i=l i=!2

0. 2048 0. 0024 0.008R 0.0038 .0828 .048G .0184 .a114

ozo .a440 .0257 .0160 --.0034 .0228 .a234 0170 --.W89 .Ml34 .a141 .a140 -.W76 - .0069 .0032 Will -.0057 -.cm94 -.0048 .a011 -.0048 -.0080 -.WBZ -.w43 --.a?46 -.ww --.W83 --.OOiZ -. 004r, -.Ci,46 --.0067 -.0076 -. w43 --.,x)40 --.0051 -_ oolifi -. 003'J -. of)37 -.0039 --.I1051 --.0034 --.0033 - .w32 - w3x - .002Y -.0029 --.0027 --.0028 --.Ci,23 --.lK23 - .a022 --.002l --.M,l6 --.Ml17 --.a017 --.oolr, --.OillO -. 0010 --.OOlO - .0010 -.a003 --.ocm -.0004 -.ooo3

- -*_ -

i=5

O.CiJlS 0052

:0078 .a093

IX)93 W7i

.a048

.a012 --.0022 -.CO47 -. Wlil 1: y:

-.00;2 -.0030 -. I1019 --.a010 -. 0003

j=3

-0. 0003 0070

--.a035 --.0061 -.I,022

0020 .a031 .OOlS

-:E --.ooi1x --.0004

ooolI 0002 ,xm1 0000

.OWO

.uooo oow

O.CO26 .OCiIS .OOOl

-. 0015 --.wzo - .a010

:EE .a011 .CQO4

-.Ono3 --.I~005 -.0004 -.Cwz

.lnm 0001

.oiKm

.oooQ 0000

0.0009 ,000s .OOOl

--.Om5 -.ocw -.oooD --.a003

.0003

.a007

.0007

.a003

.oim -.6002 --.ow3 -.OOOZ

:E

:E

0. MY26 .a073 .a109 .a125 .OllF

wxs

0.0057 .0146 .a203 .a201 .a144 .0061

-. OOlG

-:Z% -_ 0074 - .005Y --.0045 -. 0034 -.W27 --.0022 -.0016 - .a010 -.a003

-:“Gi -. 004.5 -_ OOOG -. WGY -. 0061 -.004x - ou35 -.a024 -_ 0016 --.WOY -.CQO3 -l I

Page 51: T, NATIONAL ’ ” -. .> ,. ,. :

TrZBLE 22.-LO,4D DISTRIRUTIOX DUE TO -4 EXIT PERTTTRB.4TIOS LOAD

p=an; c=zxio"; m=36]

(a) Concentrated perturbation load 011 stringer j=O at (b) Uistributecl perturbation load on stringer j=O ring i=O bctwrcn rings i=O and i= 1 (c) Shear perturbation load about shear panel (O,OJ

,- - Stringer load, pii, at statmn- Strirlger land, p+ at station- / I Stringer load, piilL, at station-

i=l I I j 1

i=G , j ~ i=l , i=2 / i=3 / i=4

-’ I j

i=5 1 i=li / i=O

- -

--

-

- -

_-

.

,

-

-

-

i=2

0. 1020 .oml .ns3 .0355 .0195

nil90 .nn23

-.Onnl -.oull -.lml3 -.OOll -.WlO -.onlO -. 0010 -. Wll -. 0012 -. on13 -. 0013 -. 6014

i=3

0.0784 ni23

,059 .0425 .0282 ,016,

oma .no2i

1:g

1: 2;; -. 0018 --.on17 -. 0013 --.OQE

::g -.002il

i=4 .-

0.06ti5 0084

.n5~3

.0444 1r3313

.0223

.OlU

.WG4 WI8

-.lMlO -.CdI23 -.@I28 -.CWS -.omi -.0026 -. no26 -.lnl2F -.lKI2F -.lXYz6

i=5 I- i=3 i=5 i=6 i=4

-0.002Y -.0063 -.ou58 -,0031 -.6Qo2

.W18

:3E .0015 .ooo5

-.cmo2 --.oon6 -.0006 -.m5 -.cao2 -. owl

:%

i=2 i=l

-0.2095 -.lJu4i

.0241

.01114

.w70 -_ oiloli --.W32 -.0025 -. WI0

.wJn

.oM)4

:E? .oooo

-. Ix01 0000

.OwO onno

.- 0. 1689

1002 :0431

IJl91 :0073

WlX -.oc02 -.onnli -.Mm5 -.6w3 -.m3 -.noo4 -.Km4 -.o!m -.0006 -.non6 -.cw7 -.0007 -.nooi

0.0600 .0.580 .0524 .0443 .0350 .025G .a170

W9Y

3% -.@I16 -.no28 -.0034 -.m35 -.Ml36 -.0035 -.0035 -.nn35 -.003i

0.0557 .0542 .0499

0435 :I357 .n275 ,019; .0127

0070 .Ml27

-.ncQ3 --.0023 -.cm5 --.OO41 --.0044 --.0045

1: ii% -.004li

0.2962 no9x

.I1242 noY1

.002li

.wo2 -.mn3 --.onoz -. 0001 -_ Mlnl -_ call1 -. oMl2 -.OcQ2 -.lJoo3 --.cQO3 -.oiwd -.m3 -.wo3 --.wo3

__.

IL 1296 n935

.0525

: 11% .w52

0010 -.OUO6 -_ oinJ9 --.OMlS -. no07 -.onb6 --.omi --.m5 -.M)o9 -.noo9 -, 0010 -. 0010 --.0010

0.08X7 .078i .058i .03!J6 .0242 .0130

w&5 .MJ12

-.nno9 -_ w15 --.oOlG -. 0014 -_ no14 --.0014 -.0014 --.0015 --.0016 -.OOli -. OcJli

0.0719 nRi6

.056¶

.043- ,030;

OlYi ,010s .0045 .ocoF

--.0014 --.w22 -.0024 --.0023 --.Oir22 --.@I22 --.0022 --.@I23 - (0023 -.OO23

0.0627 o(io3 osi

.0445

.0343

.0243 0155

.W83

.0031 -.ow3 --.0022 --.0030 --.W32 -.W32 --.0031 -.0030 -.0030 -.0030 -.0030

-0.0317 -.0276 --.WJl

,005; .M)SO ,005s .0023

-.oOQ3 -.0014 -.0013 -.noos -.cQO3

.oJml

.oool no01

:EE OOOIJ

-0.0078 -.01x1 -.lM30 -.oo16

.0926

.lW41

.0036

.0020

.ncQ5 -.cKw5

I:g$ -.nilo5 -.o0?2

.OQOO

.OQOl

.oool OOOQ

-.I%35 -.0028 --.0012

.wm 2% .0016 .oolO .mlO4

-.&IO1 -.0034

I:$$: -.onoa -.ixo2

.oQoo

-0. Mm --.oLm --.0025 --.@I22 --.0014 -.0003

.Om5

.cOll

.w13 cm1

.Oca7

.Ow3 -.oool --.wo3 -.0004 -.Ocnl4 --.ooo2 -.ooOl

0.5OlHl 0

II 0 0

II 0 0 0

i 0 0

i

0"

0 1 ; 4 .!I 0 s’

1: 11 12 13 14 1s lfi li Ii

I-

j

- -

0 1

; 4

i i

i 10 11 12 13

:: 16 Ii

1 Shear flow, qii, at station- Shear flow, q&, at station- Shcnr flow. gijf,, at stntion- - L:;. -

i=4 ! J __- /

i=s 1 .___-

n 0. Ml21) 1

-

i-.

- -

-

.-

-

- i=l i=2 i=5 j

-- 0 ; 3 4

i

i

1:

:;

:: 15 16 17

i=4 j+ i=.# ---

0. WG .nii9

:% 010s

:wli1 0014

--.M)23 --.oiMY -.005Y

-:E -.nn44 -. 0034 -. 002.5 --.0017 -. 0010 --.nw)3

- i=3

o.oos7 .0037

-.ml30 -. 0053

I$$ .0014

@I24 .M)21 .OOll .ooOl

-.cmm -.OOOS -.6Q96 -.ow4 --.OCQl

:% .ooo2

i=O

0.65% 0.1254 9762 - 0526 0356 -.0298

.0375 -.OOO6 OCHX .oi2n

--.0133 .Olll -. 0120 w47 -. 0057 -.c#Jn -.onnG -_ no31

on15 -. II929 N14 -. 0014 OOQG -.oul2

.M)nn .MK)3 -.cm2 .cnnl4 -, 0002 .ooo2 --.OOOl .CKlOl

ooco .OOOO .oool .OooO .ncm .nooo

i=l i=2 i-3

0. 0054 0196

.0214

.nii3 ,010;

on40 --.w13 -. Wli -.nn62 -.noti4 -_ no57 -.nQ48 - .0035 -_ 9030 -.no22 --.0016 -_ 0010 -.OW8

i=ll

0.2035 (0662

-1 ;g -.oQ55 -.ootin -. nn.53 -. 0045 -. 0046 -. 0045 --.0043 --.CQ3Y

7: ;;; -.oiY23 -.0017 --.no~n -.nnn4

i=l

9. 0533 0586

10300 010s

-j;hn;

-. nou -.nd -, no55 -.nQ4s -_ 0042 -.noa -.no34 -_ nn29 -.0023 -.0017 -.nnin -.w3

i=2

0.0204 I1353

In293 .imn

oni --.onn4 -. no48 -_ CmG -.oQBR -.005R --.0049 --.0041 -, on34 -. 0023 --.nQ22 -. (1016 -_ on10 -, mu3

i=O --

0.1636 .0653 .0222

no30 --.@I42 -. 0061 -. 0059

1: g:; -. 0045 -. 0042 -.003Y -. IN34 -.0029 -.0023 -. 0017 -.win --.lMo3

i=3

“:fK% --.0164 -.w95 -.no22

.0032 @I48

.0036 oo13

-.om6 -.oo14 -. oo13 -.oilo7 -.om2

.OOOl

.oouz

.ooOl

.COOl

.Lwno

0. @.I40 MI25

-.ooo4 -. 0024 -. 0027 -. no17 --.cm3

.culoo

.0014

.oo13

2% -.cKm3 -.cm5 --.cMM5

7%:

:E --

0.0022 .0016 .ow2

-. on11 -.Wl6 -. 0015 --.oona

.cnMo

.0@37

.llolO

:Ei .ooo2

-.cmnl --.owJ3 --.cHm3 -.oMl2 -.cm2 --.CWl

.- IJ. Ml59

,014s ,017s .0159 .Olll

w54 .lnm

-.0035 -.OO56 -.W63

3% -. w41 -_ cm2 -.I?023 -, 0016 -.cm9 --.lMo3

0.1~33 IKlEi

.OllB

.0118

.nn99 ,Do66

w29 --.OWJ -.OO32 -. oil49 -.W56 -. IX56 -. 0050 -. 0042 -.@I32 -.0022 -. on13 --.ow4

0. w21 w59 wx4

.CO91 no54

.M64

.0033 onn9

-. WlB -.Ml36 --.W48

:-:g5; -.&6 --.@I35 -.Mm -. not7 --.noo6

0.0334 O.OllR .0477 ,025‘~

u32fi .0254 OlG2 .0x34 no40 no38

--.0032 oo22 --.oo63 -.0031 --.om -. 0059 -, W62 -. W67 --.W52 -.0063 -.0044 -. o654 --.@I33 --.@I44 --.0033 -. 0035 -. 0025 -. 0028 -. W23 -.M)22 -. oo17 -. 0016 -. DO10 -. co10 --.04 -.lHm

.on79 OlOb

.0112

.nosli 0066

.0030 - nnn4 -. 0931 -. 0049 -.lKJsti -. NJ55 -. 004s -. w39 -_ 0029 -.nn2n -.OOll --.0,x)4

i 3

: 6 i

Fl

:: 12 13 14 15 ICI 17 18

-

Page 52: T, NATIONAL ’ ” -. .> ,. ,. :

TAHT,F: 23.-LOAD 1)ISTRIBTJTION INJF: TO A IJNIT PERTURBATION LOAD

[B=low c=zx1oj; m=3ti]

(b) Distributed perturbation load on stringer j=O between rings i= 0 and i= 1

(a) Concentrated pcrturhatioo load on stringer j=O at ring ,i= 0 (c) Shear perl.urbalion load about shear panel (0,O)

j

1

i Stringer load, pii, at station- Stringer load, pii, at station-

_- i=3

--- -- i=2

___

0. 2032 : g;; .01x5 .OlOl .0054 .0026

0010 :,I002

-. 0003 -. 0005 -. 0006 -. OOOi -.Mrn8 -_ 0009 -. 0009 -_ 0010 --.0010 -. 0010

- _- i=5

0. 1334 .0%7 .04il .0280 .Ol71

0102 .OO57 .0027 .0009

-. 0002 -.0008 --.OOll -.0013 --.w14 --.0015 --.OOlB --.OOlG -.OOlT -. 0017

--- i=4

-~

0.0995 .0771 .0517 .034x .022R .0148 .W91 .0050 .0022

0003 -. 0009 --.0015 -. 0019 -. MI21 -.0022 -_ 0023 -. 002.1 --.nO24 --.0024

0.0811 0.0700 ,ofm9 06X8 .0526 0519

03RO .0400 : ;g 0300

,021s .012\ .I1151 .0074 0098

,I038 005li .0012 .0023

--.lmOIi .OOOO --.0017 --.OlllG -.w24 --.0027 -.0028 -. 0033 -.0030 --.0037 -. 0031 -. 0039 -. 0031 -.0040 -.0032 --.0040 -.0032 --.0040

Stringer load, piilL, at station- ---

i=2 i=3 -__

-0.0476 -.0306 -, 0099

.wo4 ,048

0060 .Oo53 ,003s .002Q .oM)5

-.ono5 -. 0010 -. oo10 --.ow8 --.oM)5 --.0003 -, 001

.Ocal

i=4 -__

-0.0210 -. 0213 -. 0109 -. 0031

.0014

.0035

.0041

.0037

.cm27

.0015

.wJO5

I:$$ --.lxm --.oom -. cm06 -.0004 -. 0001

i=5

-

_-

- -

i=2 i=3 i=4

0.1593 0.1127 0.0386 .0856 .0809 .0734 .0429 .0503 .0526 .0238 .031B .0365 .0138 .0202 .0251 .0078 .Ol2li Olfi8 .0040 .Oo74 .a07 .oolB .0038 nxiz .0004 .0015 .0029

-_ 0003 0000 0007 -.0007 -_ 0009 -. 0008 -_ 0009 --.0014 -. 0017 -_ 0010 -_ OOlF -. cm2 --.cmlO -. 0018 - 0025 -. 0012 -. 0019 --.002fi -. 0012 -. 0019 --.0027 -_ 0013 -_ 0020 --.002i -_ 0014 -_ 0020 -.002x -. 0014 -. 0020 -.002x

_-~ i=l

-

_-

-

0. X32 .0454 .Ol40

0062 :0030 .0013 .Imo5 .0002 .lrnOO

--.I~001 -. 0001 --.0002 --.lmo2 -.0003 -.0003 -. oon3 -. 0003 -. 0003 -_ I1003

.-

__- i=l i=S

0. 0747 .0866 .0.524 .0393 .028i

0203 : 0138

OOSR 004i

: oo17 --.0003 -.0017 -.rm26 - w31 -.0034 -. II035 -. 0035 -_ 003fi -. 003,i

-

_- I

i=(j i=6 i=O i=l -~

i=F

0.06.59 .0612

: II:;“, .0312

0231 :OlR4 .0103

OOG4 : 0030 .0004

--.0015 -.0025 --.0036 --.0049 -.0043 -_ 0044 --.0045 -.0045

--

i=5 __~

.-

- -

II 1 2 3 4 5 Ii i

i 10

:4 13 I4 15 I6 Ii 18

j

0

; 3 4 B R 7

i 10 11 12 13 I4

:i 17 IX

j

0 1

i

z 6 i x ll

IO

t‘l 13 14 15 16 17

-0.3066 -.I1042

.,I229 0211

1 ,llZi .0047

-.Orm4 -.,m25 -.,m25 --.,rnlfi -. 0006

cm00 .0003 .orm3

Ocill .l1000 .OOoo

0000

-0.1174 --.0363 -. 0022

.0080

:iE 0051

-: I;,": --.0012 -.0015 -.0012 --.0007 --.ocu3

0000 .OOOl

0001 .lrnOO

-0.0102 -. 0142 -. cm96 --.0044 -. 0006

.0917 cm8

.OORl

.0027

.0020

.OOll

.0003 -. oooz -.cmo6 -.OiM7 -. ocm -.0004 -. 0002

-0.0054

:: gj;; --.0045 --.cQ17

:iE

:i% .cmo .0014

:%J; -.ocm2 --.MM4

I:$$ --.oooI

0.5000 0.2600 0 .0743 0 0265 0 : 01% 0 .OQti4 0 .0031 0 .c014 0 .ooo5

ii .OWO

-. oom i --.0004 -.0003

i --.OiM4 -.0005

0 -.oiloti i -. --.0007 OOOA

0 --.0007 0 -. 0007

- i=O i=3 i=4 i=5

i=3 i=4

0.0120 0. lIO(i9 .I)195 .0137

,n72 0139

:E : II::; .0032 on41

-. 0001 .0010 -. II025 --.,I014 -_ 0040 -. (HI3 I -_ IH)4Y -. IXM!! -_ 0043 -. W4Ii -.,m41i -. lKl41i -. OlI4ll -. I1042 -. ll,l:~4 -. oo:<,i -_ lm2Ii -. lK12Y -.Oi)lLl -. 0020 --.W11 -. Oo12 --.0004 -. 0004

--

_-

- i=l

0. 1291 --.OROl --.02RO -. 0028

.0102

.0130

.0094

.0039 --.I1007 --.lHl31 -.IrnW4 -.0025 -.0013 -. Olrn3

lmo2 0,104

: 0,103 0002

.OOOl

i=O i=o i=2 i=3 i=l i=2 i=4

0. 0092 .OM4

:%i

:ZE .0005

-. ocw -. lrn3li -. 0045 --.1104x -.lHl4Ii -.0041 -. (Kl3.5 -.0(127 -.0019 -.0012 --.0004

i=l

0. 0800 0432

: 0216 MI94

-: ;g -. 0039 --.,I048 --.,X)4Y -. 1m4i -_ 0044 -.I1039 -_ Of134 --.,I029 -.,KJ?e'j -.OOli -. 0010 -.0003

i=5 _-

-

0. 487R Ill09 1092

:or,33 .0212

-.,m43 -.0137 -.0128 --.0079 -_ 0030

111l02 III)13

: 0111:~ iKKl7 IKlO2

-1 imul -. 000I -. 0001 -. 0001

0.1200 .0457 .0192

nmfi .0003

-. W28 --.0042 --.lK)4R -.,X)47 -. lKl45 -.0042 -_ win -_ IX%, -.00!!9 -. 0023 --.OOli -.OOlO --.wo3

0.0504 .0390 .022F .0114 .0040

-.0007 -.0034 -.0047 -.,m51 -. ,m49 -. II045 -.lHl40 -. (rn3.5 -. 0029 -.0023 -. 0017 -. 0010 --.0003

--

0.0349 0.0169 .0334 .0235 .0218 .0190 .0123 .0127 .0054 .0070 .ni% .0025

-. 0026 -. 0009 --.0043 -.0031 -. 0050 --.0044 -. WXI --.M)49 --.,I047 -_ Oll49 -. 0042 --.,X)45 -, 003,i -. llU3!) -. no30 -. 0032 --.I)021 -.W25 -.0017 -. 0018 -. 0010 -_ 0010 --.0003 --.0004

0. 058n -, 0118 -. 0175 -_ 0098 -.0022

.oQ29

.0052 0050

.0033 0012

-: 0005 --.IHl14 -. Wlli -. Olll3 -. 0008 --.0003

ooo1 .0003 .0004

0.0272 OOOG

-. cm87 -.0078 -.0043 -.oOOS

.0016

.0023

.0029

.0022

.OOll

-: I&! -. Oil09 --.0009 -. OOCR --.0003 -. 0001

.OOOO

0.0140 .0032

-.0039 -.0052 -. 0039 -.WM -.ooOl

oo12 .0019 .0019

o915 .oooq .LwO2

-. 0002 -.0005 -. OOOB -. OWR --.0005 -.0005

0.02:33 .0281 .02l)F .0128

:I%; -.0017 -.0037 -.004x -, ,m51 -, 0041 --.IKl44 -.IKl3X -. uo31 --.IKl24 --.0017 -.oolO --.Mlo3

0. 1368 .0459 .OlFxl .0055

-.lxIo4 -.w31 --.0042 --.0045 -. 0045 --.w44 -. 1,042 -. ou3x -. OlIR4 -_ 0021) -_ 0023 -_ OOli --.oOlO -.0003

0. 0055

:% .0104 .0074 .0043 .0014

-. OOO!) -_ 0027 -. Oll3X -. Oll44 -. 0,145 -. 0042 -. Ill):17 -. lK)30 -.002l -. 0013 --.oM)4

-

Page 53: T, NATIONAL ’ ” -. .> ,. ,. :

T-4BLE 24.-LOAD DISTRIBUTIOS DUl? TO A USIT PERTURBATION L0.4D

[B=3W; c=2 x 105; m=36]

(a) Concentrat,ed perturbation load on stringer j=O at (h) Distribukd perturbation load on stringer j=O ring i=O between rings i=O and i= 1 (c) Shear perturbation load about shear panel (0,O)

-

-

--

-

I. Stringer load, &;, at stntion- Stringer load. ,I,{, nt station- Stringer load, pi;/& at stotion- -

i=4 i=j i=tj

0. 1390 0800

.a431 ,025s .0169 .a113 .a079

: E .nOlli .oou4

-.a006 -.a013 -. 0018 -.a022 -. 0024 -.0026 -.UO27 -.0028

0.1136 0.0983 .a770 .u729 .0467 .0486 .02?38 .0328 .a202 .n230 .a141 .0163 ,009?l .Ul18 .0067 .UO82

0042 .uu54 I~023 .un3u nwi .ou12

-. 111~05 -. ouo4 --.uo15 --.0016 -.a022 -.0025 -.0027 --.a032 --.a031 --.0037 -.0033 -.a040 -.0035 --.a042 -.0035 --.0043

i=5

0.1254 0. 1044 .0786 .a750 .a431 .047i .0279 .0313 .UlSfi .0216 .a129 .0154 .0089 .0109

0060 0075 .a037 .no43 .0019 on27 .a005 non9

-_ au05 -.ouu4 -.uo14 --.0015 --.uo2o -, 0023 --.OQ24 -.Ml29 -.a023 -, uo34 -_ 0030 -. 0037 -. 0031 -.0038 -.0031 -, 0039

j

- i=l i=2 i=3

0.3368 0.2384 0.1776 .05x? .0733 .0801 .0157 .a283 .0372 .cQ76 .0147 ,020s .oil44 .0089 .a131 .a027 .M)57 .008i .0016 .0036 .oo58 .oooo .ou22 .0037 .nou5 .a012 .ou21 .wo2 .a005 .OOlU .OOW 0000 .OMll

-.0002 --.a~4 -. 0006 -.ooQ3 --.oM)7 -.onio --.uoo4 -.orm9 -.a014 -.M)o5 -_ 0011 --.0016 -.0006 -. 0012 -. 0018 --.OMl6 -. 0013 -. 0019 --.0007 -. 0013 --.a020 -.0007 -.0013 -.0020

--- _------- --~- i

U

:: 3 4 5 6 i 8 9

10 11 12 13 14 15 16

:a

-

--

-

-

.-

-

-

.-

-

i=2

_----

0.2837 .0642 .02!23 .I1112 .0067

no42 :un26 .0015

on08 : uno3

-.ooni - ouo3 -. uoo3 -. OOOi -. OW8 --.a009 --.a009 -.uoin -.OOlO

i=fi i=4

-0.0754 -.0367 -.0118 -.ou17

.wx

.oo44

.0049

.UO46

.w38

.w28

.oo17 .oiM7

2% -.ooo7

I:gg -.cm2

i=5

-0.0459 -. 0310 -. 0130 -. 0038

.WU6 ,002s .9037 .0039 .oQ35 .w29 .0021 .uo13 .0006 .OOQl

-.cm2 -.lm3 -.cm3 -.oool

i=2

-0.2169 -.0348 -.wo4

.CU78

:Ei .no70 ,046 .OO23 .oGQ5

--.ooo7 -.oil12 -.a013 -. 0011

2%: -.oon2 --.Ol

i=3

-0.1267 -.04oo --.UO83

.UU18

.oo55

.0065

.OO62

.a051

.lw37

.uo22

.(x)(19 -.OOiN -.cm7 -. 0010 -. 0010 -. ow8 -.ow5 --.ciM2

i=l ---

0.4116 .a293 .0080

uu38 :ou21 .0013

UU08 :0004 .a002

:Eli -. ma1 -.MlO2 --.ouu2 --.uoo3 -.oMl3 -.ooTl3 -.ow3 -.0003

i=l

-0.3732 --.w33

.0x32

.0191

.a147

.0089

.0037

.wo2 -.0016 -.on20 --.0017 -. 0011 -.om5

owu .ooo2 .a002 .0002 .00X

i=3

0.2057 .a775 .a330 .0179

niio 10072 .ou47

no29 1 nniu .uUOi

-: ii;:' -_ oinl9 -.UOll --.a013 -.a015 -.OU16 -.0016 -. OOli

i=4

Il. 1569 .0804

: Ki .a150 .nini

0068 .a044

0026 0013

.a002 -_ OOUli -.a012 -.U016 --.a019 --.a021 -_ 0023 --.UO24 -. 0024

-0.0287 -. 0251 -. 0129 --.ou51 -.UUO8

.a015

.w27

.0032

.ou31

.wz3

.OQ23

.lw17

.OOll

5%: .woI

:C%

- - -

Shear flm, qij, at station- Shear Aow, qi&, nt stntion- -

--

-

i=l

0.0640 .a290

0148 :OOi4

: t% --.0019 -, on30 -. 0036 -. nnxx -, uu3x -. nu3i -, Ml32 -, 0027 -.uu22 --.UOl6 -.0010 -.a003

i=5

0.0187 .OO14

-:Ei -.w34 -. 0020 --.uuo7

.uoo3 WlO

.0014

.nul5

.uill4

.WlU

.ow5

-:E -.OOOS -. WI1 --.oo12

i --

_-

-

-

-

.-

-

-

-

i=l i=2 i=3 --

0. 1036 0.0688 0.0437 --.a547 -.0214 -.0076 -. 02.31 -.0162 -.0108 -.a043 -.0084 -.0073

.0069 -.0924 -.OO38

.a119 .a019 -.oim9

.a117 .w44 .0012

.0084 .OU52 .w25

.a040 .0046 .uo30

.OOOI .uo32 ,002s -.UU24 .0016 on -. 0034 .wLnl .w14 - no3k3 -. Will .ouu5 -.(I025 -. 0015 --.ouo2 -.ool4 -.oo15 -.UUU8 -.oiM5 --.oo12 -. 0011

.oao2 --.ooo9 --.@I12

.KKI6 -.ow6 -.0013

.oQu7 --.cKm4 -.Kll3

i=4

0.0282 -.ou13 -.cK!71 -. 0059 -.uu37 --.0017 -. oool

. cm11

.0018

.0021

.0020

.uulti

. uu10 .uw4

-.Mm2 -.ooo7 -. 0011 -. 0013 -. 0014

i=U

0.3601 .I106

: Kl"F .U423 .0129

--.0048 -. 0122 -.012fi --.ui195 --.cwJ4 --.ou2u

uuu2 : 001 I .cmll .oou7 .ooQ2

-.OOOl -.oQo3

i=l i=2 i=3 i=5

0.0086 .0126 .u107 .oo77 .0049 .0025 .NM6

--.om9 --.uo2o -. ollW -, uls3'~ -, uu3~ -. uw~ -.o& --.UU25 -. 0019 -_ 0012 --.lwI4

i=o i=4 i=O

0.0816 0.0492 .0298 .a277 .0141 .a151 .Mw5 .w80 .w22 .a033

-.uQo3 .a004 -.0021 -.@I16 -.c031 -.Oil28 --.oo35 -.no35 --.uu37 --.uu38 -.uu37 -. uis3x -.oo35 -. Ml36 --.uu31 -.ou32 --.w27 --.uu2x --.wn -.wn --.0016 -.0016 -. 0010 -.0010 -.ooo3 --.Mlo3

iz.5

U.UlO5 .ni4i .0115 .W80

no49 : no24 .a004

-. 0011 -. 0022 -. ,1,l3u -. uiI:+l -, IHS35 -. uu33

i=2 i=3 -__-

Il. 0244 0.0158 .0215 .Uli5 .a141 .a129 .0086 .0084 .0046 .a049 .0016 .a021

-.a005 0000 --.nn20 -.m5 -.uu3u -. 01)2U -, uuaci -. uu32 -_ 0119,~ -_ UO,li -, uu3i -. UU36 -, owl -. ou34 --.OOYJ -_ 00311 -.OU24 -. 0025 -.0017 -. UO18 -. UOII --.OOll --.oiJo4 -.ooo4

i=4

-

U 1

i 4 5 6 i

i 10 11 12 I.3

i", 16

0.0304 .0236 .0146 .W85

:E -.OOUS -.oo23 -.a032 -.0lll7 -. ouobx -.uu37 -.uil34 -.a029 -.W23 --.0017 -. 0010 -.cml4

0.0193 .a194 .a135 .0085

:%i -.om2 -.w17 -.N28 -. uo34 --.w37 -, uu3li -.uu34 -. uo30 --.ww --.CQ18 --.OOll -.uoQ4

0.0127 .a137 .0122 .0082 .0049 .om3 .cm3

-.oo13 --.OU24 -, uu31 -, 0035 -. w33 -. uu34 -.w3u --.0025 -.OO18 -_ On11 --.a004

0.0884 .0298 .0138 .0062

-: it% --.w22 -. ou31 -, uu35 -, UU3i -_ 11113i -_ IN)94 -, 0031 --.OU27 --.nu22 --.a016 --.0010 --.uun3

0. 039u

: 11T.z .on33 .a039

no-9 -:a012 -, UO26 --.IHlz34 -, 003x -. 0u3x -. MIX -, 0033 -. uuw -_ 0023 --.a017 -.noio --.uuo3

__~

-_ ,HlS” --.1x)25 -_ 001x -. 0011 -.0004

-

Page 54: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 25.-LOAD DTSTRIBTJTIO~ DUF: TO A USIT PF:RTTJRR.4TIOS LOAD

[B=l,Or!l& C=2XlO~; rn=36]

(a.) Concentraked perturbation load on stringer j=O at (b) Dist.ributcd pcrt,llrbation lortd on stringer j=O ring i=O bctwccu rings i=O aud i= 1 (c) Shear perturbation load about shear panel (0,O)

r- Stringer land, pii, at station- Stringer load, pii/L. at station- Strlngcr load, pii. at station-

j- i=O

_-

:, ~ 0.5;00 0 3

;;

iii

i

0

1: II 11 0 12 0 13 0 14 u 15 0 lfi 0

:i II -

- - -

-

-

_-

-

_-

--~ i=4

0.2451 OiUl

.0264

.Ol38

.0087 ootio

.0043

.0030

.0021

.0012

.0005 0000

-. 0005 -.0010 -. 0013 --.0015 -_ OOli --.I1018 --.OOlQ

- -

_- i=l i=2

0. 3251

:E .00;2 .0051 .0034 .0024 .0017 ,001l

0006 .0002

0000

1: ii;; -.0007 -, 0009 -. 0010 -. 0010 -. 9011

i=3

0. 2679 OMil

.0234

.OlZO

.0075

.0052

: % OOli’

.a010

.0004 -.OOOl -. 0005

I: %Y -. 0013 -.0015 -. 0016 -. 0016

i=4

0. 2241 0735

.I)293

.I)156

.I1099 ooli9

.0049

.0035

.0024

.OOl4

.0006 0000

- .0006 -. 0010 --.0015 -.0018 --.0020 --.0021 -. 0021

i=5

0. I903 UK2 0341 0188

:0122 0085

: 0061 .I1044

0030 0019 0009 uuoo

-. 0007 -. i~Ol3 -.0018 -.I)022 -.I)025 -. 0026 --.Ol~27

i=li i=5 i=F ---

0. 1TGti .Oi81 .0x1 .0203 ,0132 .a093

: E .0034 .0021 .OOlO

0001 --.0007 -.0014 -.0020 -.0024 --.0027 -. 0029 -.0029

i=G i=l

0. .44i9 Oli4

,I3043 0021

:0013 ,0008

OOOli 0004

: II::: 0001

: uooo -.lIOOl -, 0001 -. ouo2 -. 0002 -. 0002 -. 0003 - uooz3

i=2

0. 3610 .04%

012li 0062

: 0038 002fi

.001x

.a012 000x

:0005 0002

--.OOOl -, 0003 --.0004 - .I)006 --.I1007 -. OOOi - .0008 - .I~008

i=l

-0. 4263 --.002O

.0127

.0149 0135

.a104 DOG9

,003i .OOlZ

-.0004 -, 0013 --.0015 -, 0013 -, 0010 -, OOO(i -. 0003 -. 0001

0000

i=2

-0.3158 -. om

.0005 0061

: Elii .0073 .0059 .0043 ,002i .0013

0002 -.0005 -. 0009 --.a010 -. 0009 -. OOOG -.a002

i=4

-0.1742 --.0414 -.0090 -.0004

,002s .0042 .0047 .0047 .0043 ,003s .0030 .0023 .OOlG .OOll .0006 .0003 . 0001

0000

i=3

-0.2340 -.0372 -.0052

.002!2 ,004s .0058 .0059 .0054 .0046 .0036 .0025 .0015

OOOi .OOOl

-. 0002 -. 0003 --.0003 -. 0001

i=5

-0.1303 -.0419 -. 0118 -.0022

.0014

.0030

.0038

.0041

.0040

.0037

.0033

.0027

: E .0012

:E: 0001

_ .--

0 1 2 3 4 5 Ii

i

1: I1 12 13 14 15 Iti Ii 18

0.4004 .Ozz25 .0080 .0042 .0025 .0017 .0012

0008 .0005 .a003

WOl 0000

-.0002 -.OOoa -.0004 -.0004 -. 0005 --.0005 -.0005

0. lfi40 Oi8G OYRO

.0218 0143

: mot OOi4 0053

:0037 .0023 .OOll

0001 -.0008 -. 0015 -.I1021 -. 0028 -.a029 -.0031 -.OlYA2

0. 2953 otw

.0200

.OlOl ooF3

.a043

.0031

.0021

: L% .0003

-. 0001 --.0004 --.0007

1: ;"o:y -.0012 -. 0013 --.OOlY

0.20G5 .0756 .031x .0172 .OllO .0077

0055 .0040

non .0017

: II!: -. 000F -.0012 --.OOlG --.0020 --.0022 --.OO24 --.0024

SheAT fl0\\7, q<i, at station-

j j -

-

-

_- i=5

0.0132 .Oll8 IlOi'J 005fl

: 0028 0012

i=O i=4 -. I- i=l

0.03i6 .OlB8 .0090 .0049 .0024

0046 --.0006 -.0015 -.a021 -.0024 -.0026 --.0025 --.0024 -. 0021 --.0017 -.0013 -.Mx)8 -.oOil3

-- i=2 i=3 i=4

- --- 0. 0329 0. 0251 0.0193

.0164 .0152 ,013s

.0089 ,008s 0085

.0050 .0051 .0051

.0025 .0027 .0028 0008 .OOlO 001 I

--.0005 -. 0003 -. 0001 -.a014 --.OOl2 -.OOll -.0020 -. 0008 -.OOli --.0024 -.0022 - ,002l -.0025 --.0024 -. 0024 --.0025 -.0025 -.0024 --.0024 --.0024 -. 0023 --.0021 -.0021 -. 0020 --.0017 -.a017 -. 0017 --.0013 --.0013 -_ 0012 --.000X -. uuu8 -. 0uu8 -. flOO3 -. 0003 -. 0003

i=2 i=3

0.0590 0.0465 --.0228 -.0133 -.0121 -. 0091 -.OOG4 -. 0054 -.0024 ---.002&I

.0006 -. OOiM

.0029 .OQO7

.0044 .0019

.0048 .0026

.0046 .0029 003 .0027

.0025 .0022

.OOll .0014 -. 0001 ,0005 -. 0012 --.OOQ4 --.0020 -.0012 -.0026 -. 0019 --.00x4 --.0023 -. 0030 --.0024

i=5 i=0 i=5

1

0.0G80 -.0426 -. 0180 -.005x

.0030

: %i .0105 .0083 .0051 .0020

-.ooQG --.0023 --.0030 -. 0030 -.0026 -.0020 -. 0036 --.0014

i=2 j=3 i=O

0. 0521 0173

.I)087 0045

:0020 .0003

- .0009 -. OOli --.0022 -.0024 -_ W2B -. :I025 -. :I023 -. 0020 -. !Ulli -_ 0012 - .0008 -. 0002

-I- 0. 2580

1lOi

: E : g!

.Olls' --.0020 - .0093 -. 0117 - 0108 -.0082 --.0053 --.0028 - .000x

.0004 0010

: uu13 .0013

0.0285 -.0038 --.0054 -.0038 -.M)24 -.0014 -.QOQ5

2% . 0010 . 0011

0010

:Ei .oWl

-.oQo3 -.ooix

I:jg$

_- 0.0498

.0173

.0089

.0046 :jg

-. 0008 -. 0016 -.0022 -.0024 -.002G -.0025 -.0023 --.0020 -.0017 --.w12 --.uou8 -, 0002

0.0286 ,015s

%i :002c

0009 -.0004 -. 0013 -. 0019 -.0023 -.0025 --.0025

1: IIS -. 0018 --.0013 -.OUUS -.0003

0.0211) 014h

: 0080 .0051

: Eli - 0002 -. 0011 --.0018 --.0022 -. 0024 -.0024 -. 0023 --.0021 -. OOli -.0013 --.Ouo8 -. 0003

0. 0109 .0131 .0083 .0050 .0028

0011 -. 0001 -. 0010 -_ OOlli --.0021 -_ 0023 -. 0024 --.0023 -.0020 -_ 0017 --.0013 -, ouux --.0003

0 1

i 4 5 fi

i 9

10 II 12 13 14 15 I6 17

0. 0434

: 0172 0089

: ii2

-1 0005 OOOi --.OOlfi -.I1021 -.(I024 -_ 0020 -. 0025 -. 0024 -. 0021 -. Wli -_ 0013 - uo08 -. OOll3

0.0149 .0125 .lnJ81

00.50 :002s .0012

0000 -:0010 -. OOIG --.(1020 -. 0023 --.I)023 -.0022 -. 0020 -. 0017 --.0013 - uoU8 -.I~003

0.0363

I: g," -.0045

1: ZE --.00X

:iE

5% .0016 .OOll .oQoB

-.MMl

3%? -.C014 -. 0016

Page 55: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 26.-LOAD DISTRIBUTIOS DUE TO A UlUIT PERTURBATIOK LOAD

[B = 8: C = 2 X 10 0; m = 3G]

(b) Distributed perturbation load on stringer j=O betmeeu rings i- 0 and i= 1

3

8 (c) Shear perturbation load about shear panel (0,O) %

(a) Concentrated perturbation load on stringer j=O at. ring i=O

I Stringer load, pij. at station- f I I i=O i=l ----

i=2

-- i i=5 I i=3 i=4

~-

I I Stringer load, pi,, nt station- Stringer load, p&C, at station- ’ i i=A I I-

I ’ O. OG57 Mi38 1 I ::

(0584 3 .a488 : ’ 4 :;;g I 5

m;; Y

-.omQ / I -.0035

-.0927 -. 0018 -. 0015 -_ 0015 -. 9918 - 0019 -. 0020 --.0020 -. 0021

I 8

1: 11 12

:i 15

!tl 18

i=4 -~

a.0804 OiG9 OG58 04%

: 02Gi owe

--.omx -.a033 -. 0024 -.OOll

-:f% -.noeQ -.cQll -. 0012 - 9012 -. Oil13 -.0x3 -. 0013

-1 i=tj J 1 I -~~

i=l I i=2 I

r- -

--

--

- i=2 i=3 i=4 i=5 i=G i=l

-0.0883 ,015s .0156

-.oom -.rKm -.Km7

.cml7

.Om3 -.OQOl -.WQl

:E .m

:E

:E .oooo

i=5

0. Oili ,c693 .0618 .0491 ,032s .016F .0044

-. WI9 -. 9034 -. 0025 -. 0015 -. 0910 --.OOll -. 0013 -. 0015 - OolG --.oQlti -. OOli -. 0017

l- -- - -0. cm5

I: g:i:

3% . Olm .wO7

-.QlWl -.ooo-i --.llco2

.oooo

.OOQl

:Ei

:E

:E

-0. Im3

-:Fli -.ooc6

.QQOl

:E .QOQ3

-. oool -.m3 -.wO2

.ccin

.E

.oocm

:E .lnloo

0. 1066 .0944 .0723 .0348 .9971

--.0030 - 0028 - cccl8

-:E -.om4 -.ooo5 --.mIO5

I:$$ --.wo7 - Oca7 -.Ow7 - ooO8

0.0683 .OG63 .06x4 .a491 ,034s .a197

9071 -.ooo5 -. 0034 -. 0032 -. 0021 -. OQ14 -.0012 -. 0014 -. 0016 - 0018 - 0018 -. 0019 -. 0019

0.1180 0.9941l ,I114 .08X0

oti5ti oioo .0222 04lG .m5 .0152

-. 0034 .9003 -_ 0013 -.w34

.0901 -. 0021

.9QOl --.coo6 -.OOQ2 -.cKw2 -.cax --.cco4 -.wo3 --.oooG -.OcQ4 -. 0007 -.ooo4 -.ccQ8 -.OOQ5 -.ooos -.0005 -.a099 -.lm5 -.lwo9 -.ocoG -.ofKl9 -.omF --.owY

0.0632 .OGli

0568 .0484 .0370

0240 0120

o. w22 -, 012Q

.om ,005s .a020

-_ 9012 --.OOll -.ooOl

.ccm

.rKm

:Ez

:E

:E .owo .oooo

-0. co20 -.D925 -. 0027

:E .0013

--.0093 --.Ocm7 -.lm3

2%

:E

:E

:El .lMoo

0.2528

: E; -. 9025 -.OQ28

Cm2 .Ow5

;EJ

-_ cm1 -. 0001 -. 0001 --.cw2 -_ wcl2 -. QQo2 - Ow2 -. MKl2 -. 0002

0.0859 0.0755 .0820 ,067s ;?g;

.04Gl .0489

.a220 .0304

.0045 .ol32 - cm3 cm17 -. 0931 -. 0030 -. 0014 -. 0031 -.cwl5 --.0018 -.m --.ocoQ -.ooo6 -.rxm -.ocm -.0010 --.ooo9 --.0012 -. 9010 -. 0013 - 0010 - co14 - 0011 - 0015 -. 0011 -_ 0915 - 0911 -. 0915

CQ2cJ -. 0921 -. 9037 -. 0032 -.w24 -. 0018 -. 0017 -. 9018 - 0021 - 0022 -_ 0023 -. 0023

j

- -

Sheor flow, *ii, at station- I Shear flow, qiiL, at station- -

_-

-

i=5

0.002F Ml72

.a104

.a110

.a088

.MJ45 -.cnO3 -.cQ38 --.owl -. 0045 -. cm4 -_ 0924 -. 0018 -. 9015 --.OiJ12 -.OCNXJ -.ooo6 -.Ocil2

- i=4

0. cwl7 .cw5

::g -.0097

.oooo

:Ei .ooOl

--.cmO2 -.Orm2 -.CWl

.oocQ

:Ei

:E

:E

i=5 i=l

0.0570 -. 0335 -.@MJ

.a101

.cQ35 --.0023 -. 0018

:E .OOOl

-_ oool --.ooOl

.owo

:E

:E

:K

i=2

0.0094 .004B

-.a058 --.9025

cm7 .0023

--.ooo2 -. 0010 --.cm?-4

.QWl

.KQl

:Ei .oooo

:E .Mml

:E

i=3

0.9019 .llco4

-.oouG -. 0918

-:E .OQll .wOl

-.ooo5

-:E

:iE

:E

:E .oocQ .cMK.

i=4 i=3 I -i

i=2 i=4 i=5

O.OllG 0.0073 0. Ml43 0.0030 .0349 .0184 .a120 .0084 .a305 .0225 OlGu .Oll9 .a112 OlF3 .a147 .0122

-.0035 .0049 .0085 .MlQo -. 0073 -. 0038 .OOOQ .w37 -. 0052 -.m4 -.cu!43 -. 0015 -. 0031 -. 0051 --.0057 -_ 0046 -. 0025 -. 0034 --.0047 --.@I52 -. 9025 -_ 0025 --.CQ32 -.w42 -_ 0024 -. 0022 -.OQ24 -. 0030 -.lxm -. 0021 -. 0020 -. 0022 -_ 0019 -. 0919 -.001x -. 0018 -. Ml10 -. ciJ1ti -, oolli -. 0015 -_ OQ13 -. Mu3 -. cl013 -, 0013 -.ooos --.m -.olm9 -. 0010 -.m --.cmG --.OOOG -.ooo+ --.moz -.oooz -.ooo2 --.GNl2

i=l

0.0674 9610

.a201 --.OQ47 --.0080 -.w3 -.0024 -. W25 -.0028 -. 0026 -. 9024 -. 0022 -_ 0019 -. lmli

Z!Nili --.olx+ --.coO2

i=O i=O i=l i=2

0.18G7 0.0100 0.0103 .0481 .a542 .0228

-. 9016 .0316 .0272 -.9076 .W% .a160 -.QO41 -. 0079 .OiJll -.!m5 -.OQ65 --.ooG4 -. 0026 -. w35 -.rmG4 -.MnQ -. cm25 -. 0041 --.a028 -.002B -. 002i -. 902G -. l-ml -.0024 -.cml -. 0024 -. 0023 -. 0022 -.0022 -. 0022 -. 0019 -. 0019 -. 0019 -. CQlB -_ 001B -_ WlG -. 0013 -. 9013 -. 0013 -.ouoQ -.ooo9 -.ooOQ -.cm6 -.mO5 -.tm6 --.ooo2 -.0002 -.9cQ2

i=3

0.0952 .014G .0187 .a159 .9075

-. 0012 -.M)57 -.Kl58 -.I%41 --.0027 --.@I22

3%: -. 001B -. 0013 -.MKB -.m -.Ow2

I I-

- 0 1

: 4 5 G

i

1: 11 12 13

:t 16 17

0. 2472 .a373

-_ 0129 -. Ml71 -_ 0015 -. 0020 -. 0031 --.a031 -. 0027 -. 9025 -. 0024 -_ 0022 -. 0019 -. oolti -.OlJ13 -.ooOQ --.cKm5 -.OcQ2

O. 0036

:E .a134 .0091 .9026

-.oinQ -.QO54 -. 0051 -. 0038 -. 0926 -. 0020 -. 0018 -. cull6 -_ Oil13 --.lxm

ZE

G

?3

1: 11 12 13 14 15 1G

:; L. -

Page 56: T, NATIONAL ’ ” -. .> ,. ,. :

c.n Kl

TABLE 27.-LOAD DISTRIBI~TIOS DUE TO A IJXIT P15RTl~RBATIO~ LOAD [B=30; C=2XlOe; n=3(i]

(b) Distrihutcd perturbation load on stringer j=O hctwccu rings i=O and i= I

(a) Concentrated perturbaiiou load on stringer j=O at ring i=O

_ ~~__-- __--~~ Stringer load, pij, at statioll-

(c) Shear pcrturbatiou load about. shear panel (0,O)

1~

-

-

j

-

0

; a 4 5 D i 8 9

10

:1

:: 15 16 17 18

I Stringer load, pij/L, at station-

i=5

-- I I-

- I-

-

.-

-

_-

- -

_- i=O

0.5000 0 0

II 0 0 0 0 0

: II 0 0 0 0 0 0

i=l

0.1889 1113

:0396 .a093

-. 0003 -. 0012 -.0004

0000 0000

-. 0001 --.0002 -.a002 -.a003 -. 0003 -.a003 --.a004 -.0004 -.a004 -.a004

i=l i=2 i-3

-__-

0. 1485 II. 1053 1084

: 0537. .0923 .Ofi41

.a197 .a354

.003ti .a141 --.a012 .0025 -.a012 --.a015 --.0004 -.a017 -. 0001 -. 0009 -. 0001 -.a005 --.a003 -.0004 --.a003 --.0005 --.a004 --.a007 --.a004 -.0008 --.0005 -. 0008 --.0005 -. 0009 -. 0006 -. OOOY -. OOOG -. 0009 -. 0006 -. 0009

--

i=4 i=2 j i=3 i=5 i=6 i=5 i=G

0.0885 0.0757 Il. OF85 .0x03 .oi20 omo .OG42 06lti 0580 .0434 .0465 .a473 .a235 .0299 .a37 .0089 .0152 .0202 .a009 .0049 .0092

-. 0020 --.0006 .a019 -. 0020 --.0024 -. 0018 -.a013 --.a023 -. 0028 -. 0009 -.a017 --.002G -. 0008 --.a013 -. 0020 -. 0009 --.a012 --.0017 -. 0010 -.a013 -. 0016 -. 0011 -.a014 -. 0017 -. 0012 --.a016 -. 0019 -. 0013 -.a017 --.0020 -. 0013 -.a017 --.0021 -. 0013 -.a017 -. 0021

i=2 i=3 __-

0. 1197 0.0939 ,099s 085G

.0618 .a283 : ‘dE

.0085 .0193 -. 0001 .a055 -. 0018 --.a007 -. 0011 -. 0021 --.0004 --.0015 -.a002 -. 0008 -.a003 -. oooli -.a004 -. OOOG -.a005 -. 0008 -. OOOG -. 0009 --.a007 --.OOlO -.a007 --.a011 -.a007 -.0011 -. 0008 -. 0011 -. 0008 -. 0011

i=4

0.0802 .(I757 : f3;

.a272

.0122 002s

--.0015 -.0024 -, 0019 -.a012 -. 0010 -. 0010 --.OOll -. 0013 -. 0014 -_ 0015 --.0015 -. II015

i=lj

O.OG57 oG3ti

.a573

.a473

.03m

.0222

.a112

.a033 -_ 0011 --.0028 -, 0029 --.OO24 --.a020 -. 0018 -_ 0019 -.0020 -.a022 --.a023 --.a023

i=l -__

-0.1896 .0258 .a303 .a054

-. 0053 -.a037 -. 0003

.0008

.a004 -. 0001 -. 0001

0000 0000 0000 0000 0000 0000 0000

i=4

-0.0031 -0.0015 --0.0008 --.OOG4 -.a01 -.0023 --.0047 -.a035 -.0024 --.0005 -.OOlF -.0017

.0026 .a007 -.a002

.a031 .a020 .a010

.a017 0019 OOlB 0000 0009 .0012

-. 0008 -. 0001 .a005 -.a007 -. OOOG -.a002 -.0003 --.a005 -.0004

0000 --.0003 -.0004 .a001 . 0000 --.a002 .a001 0000 -. 0001

0000 . 0000 0000 0000 . 0000 .a001 0000 0000 . 0000 0000 0000 0000

_- 0.0717

OG8i : 0601

0471 : 0321 .a179 (0071 .0005

-.0022 --.0027 --.0021 -.0016 --.0014 --.0014 -. 0016 -. 0017

I: $j:; -. 0019

0.3099 oi53 0202

:0024 --.a011 -.a005

: ?I:: 0000

-. 0001 -. 0001 -. 0001 -. 0001 --.a002 --.0002 --.0002 -.I~002 -.a002 -. 0002

-0.0310 -0.0080 --.a224 -.0125

.0047 --.a047

.Olll .a033

.a052 .a054 -.001)7 .a030 -.a023 0000 -.a012 -.OD12 -. 0001 -. 0010

.0003 -.a003 0001 .OOOl 0000 too01 0000 .oooo 0000 0000 0000 0000 0000 0000 0000 0000 00110 0000

L -

Shrnr flow, q;iL, at station- Shear flow,qi~L, otstetion-

i i=O i=l

_- 0.155G 0.0346

.a443 .04Gl

.0047 .0239 --.0046 .a044 --.0044 -.a044 -. 0031 --.a055 -.0027 --.0041 -.0027 -.0030 -.0027 - 00% --.0026 --.0025 -.0024 -. 0024 - .0022 -.a022 -. 0019 -. 0019 -. 0016 -. 0016 -.0013 -. 0013 -. 0009 -. 0009 -. 0006 -. 0006 -. 0002 -.0002

_-

_-

-

i=5

0. 0030 0081

.a110

.OlO8

.007Y 0036

-.0005 -. 0033 --.0044 --.a042 -.a034 -.oom -.a020 --.a015 -. 0012 -. OOOY -_ OflO --.0002

i=o i=l -‘- __-

0. IQ01 0.0807 0.0216 0395 .I)496 .0357

-. 0008 .OlFG .0247 -.005G --.a007 .a090 -. 0034 -. 0053 --.a015 --.OG24 -. 0040 --.0052 -.0027 --.0032 -. 0049 -. 0029 -.0027 --.003G --.002X -. 002G --.oom -. oozti -.002ti --.a025 --.(I024 -.0024 -. 0023 -.0021 -.0022 - .a022 -. 0019 -. 0019 -. 0019 -. 0016 -. 0016 -. OOlB - .a013 - 0013 - .0013 -. 0009 -. 0009 -. 0009 -. 0005 -. oooti --.OOOli -. 0002 -. 0002 --.0002

__ .-

i=5 i=O i=l

0. 7274 0. 0994

:a548 lOG4 -. --.0585 0103 -.0058 .0153 - ,016fi .009(i -. oorio -. 0009

.0014 - .003

.a019 -. OOlQ

.a003 .OOOl -. 0004 .OOO5 -. 0003 .a002

0000 -_ 0001

: %i 0000 - OOQ’

0000 0000

.a000 0000 0000 0000 0000

i=4 i=5 i=3 / i=4 i=2

0.0129 .0271 .a239

: I%: -.0042 --.0053 --.a043 --.0032 --.0025 -. 0023 - 0021 -. 0019 -. 0016 -. 0013 -. 0009 -. 0006 -.0002

i=4

0.0043 .0113 .a142 .012li ,007G

OOlQ --.0024 -.a044 -.004G --.0038 --.002Y -.0022 -. 0018 -.a015 -.0012 -_ 0009 -. OOOG --.a002

0.0031 .a015

-.a013 -.0025 -.a015

.0004 .0015 .a013 .a004

-.Ooo4 -. OOOG -.a004 -. 0001 -. 0001

0000 0000 0000 0000 0000

_- IL 0068

.0167

.0187

.013i

.0058 -. OOOY --.I)044 --.0050 -.0041 -.a031 -.0024 -. 0021 -. 0018 -. 0016 -. 0013 -. 0009 -. OOOG --.OOO2

0. 0036 .009G .0125

: I%; .a029

--.I1014 -. 0039 -.(I045 -.0040 --.a031 --.a024 -. 0019 -. 0015 - .0012 -. 0009 -. 0006 --.0002

0.0211 0. oofR3 --.a025 .0018 --.a124 -.a042 -. OLBO -.0042

.a048 --.0003

.004G .a024 on09 .a023

-.0014 .a007 -.0013 -. 0006 --.0004 --.OOOS

.0002 --.0004

.0002 0000

.0001 .oQo2 0000 0001 0000 0000 0000 . 0000 0000 0000 0000 0000 0000 0000

0.0017 .a010

--.0003 --.0014 -.a013 --.a004

.0006

.a010

.a007

.a001 --.0002 --.oOil4 --.QQQ2 -. 0001

. 0000

. 0000 0000

. 0000 0000

0.0084 0.0054 .0214 .0138 .0213 .OlG4 .a133 .(I132 .a039 OOG9

-.002R OOOR -.0050 -. Ill)34 -.0048 --.0048 - 0037 --.0044 -.a023 --.a035 -. 002.3 --.0028 --.0021 - .0021 -. 0019 -. 0018 -. 0016 -. 0016 -.a013 -. 0013

r::g ) r:o”;;; -.OOO2 -. 0002

-

-

Page 57: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 28.-LO.4D DISTRIBUTIOS DUE TO -4 USIT PERTURBATION LOAD

[B = 100; C = 2 X 106; m = 361

(b) Distributed pcrtiirbation load 011 stringer j=O betweet) ritlgs i=O and i= 1

(a) Concentrated perturbation load on stringer j=O at (c) Shear perturbation load about shear panel (0,O) ring i=O

1 Stringer luad, p,j. at station-- Stringer load, pi,, nt station-

i=2 i=3 i=4 i=5

Stringer load, pii/& at station-

i=2

0.2125 .0889 .a371 ,015i .oil5B .0013

-_ Oml --.wQ3 --.wo3 -_ 0002 -_ 0003 -. 0003 -. 0004 -_ 0005 -, 0005 -_ oon5 -, ooo6 -.cmB -.ocQF

I

j j I j / ----

i=j

0.0905 .0783 .0580 .03v3 .a243

0131 :005i .a013

--.OOOB --.0015 -. OOlF -_ 0015 -. 0014 -. 0014 -_ 0015 -.0016 -_ 0016 ~:g;;

_--- i=4

0. 1093 .085(i .05fi5 .a344 .0189 .a088

oil29 .m

-. 0010 -. 0012 -_ 0010 -. 0009 -. nolo -. MI10 -. 0011 -_ 0012 -_ 0013 -. 0013 -. 0013

i=l i=6

-

_- i=l

0.2883 .0798 .0267 .0095 .W26 .ooo3

-. Owl -. 0001 -. cwl -. Oml --.om? --.wnz -.ooos --.wc3 --.cnnl3 --.cm4 -.ocKJ4 -.Mlo4 -.MKJ4

0.1691 .a933 .0456 .0216 .oo89 .0026 .lMOl

-.noil5 -.ooil5 -.noo4 -.oiM3 --.oiM4 -.00l5 -.noo6 -.lMo7 -.ooo7

I:$$ -.ooo8

i=G

0.122B 0.0982 0.0839 0. 0746 .0893 .0819 .a749 .a090 .0546 ,057s .0580 .05G9 .a310 .0373 .a410 .a431 .a153 .0218 .0265 .03w .OOG6 .OllO .a152 .0188 .oQ17 .0042 .OO72 .OlOl

-.wo4 .noQB .oo22 .w41 -.cm9 -. 0010 --.ooo5 .noo4 --.oQo9 -. 0014 -. 0016 --.0014 --.0008 -. 0013 --.0018 -_ on21 --.cQo7 -. Oll12 -.onl7 -_ 0022 - aim -. 0011 -. 0016 - 0022 -. on09 -. 0012 -. 0016 -_ no21 -.0010 -.oo13 -. OOlF -_ 0020 -. 0011 -.olll4 -.0017 -. OO21 --.a011 -.0015 -.Cil18 -_ 0022 -. 0011 -.oo15 -.oo19 -_ no22 -.OOll -.0015 -. 0019 -.0023

i=4

-0: ;g -.0075

.@I14

.0054

.0%55

.cm34 0011

-.ooQ6 -. 0011 -. 0010

I:%:

:E .OOOl

:!lE?l

i=2

-0.1141 -. 0266

.a099

.0156

:Ei -. 0017

-2% -.ow4

.Ol

.wiE

.MK)l

.OWO

.woo

:E .oinlo

i=3

-0.0466 --.a209 -.w35

.0070

.oo87

.0057

.0019 -.0007 -. cum -_ 0013 -. OOOG -. 0001

.a001

.OOill

.ocKm

:E .OOOO

i=G

0. 0789 .0718 .05i5 .n421 .0283 .OliO .OOSi

m31 -: 0001 --.0015 -_ 0020 -.a020 -.a019 --.W18 -. 0013 -.w19 -. 0020 -_ 0021 -.tw21

i=3

0.1433 .0918 ,050;

am .a124 .oo45

was -.(xX)5 -. Wili - OWA -.om5 -. I1005 -. noofi --.OOOi -.0008 -.ooo9 -.lXx)9 -. 0010 -. 0010

i=l -__

0.3683 .0485 .a137 .a041 .INO9

:11G Ooill OMXI

: noon 0000

-_ 0001 -. owl - 0001 -.wJz -.owz -.cwz --.lnm -. 0002

-0.0054 -. 0391 -. Mm -.0027

.wo8

.GQ27

.a931

2% .@I01

-.ooo5 -.cQo7 -.woG -.a004 -. OcKll

:E .MKml

1 3 4

;

f3 9

10 11 12 13 14 15 16 li 18

/ Y 2 3 4

i ~ 7

i 10 11 12 13 14 15

ip

-0.0100 --.0135 -.0078 -.0015

OmG .0041

:%f .ooo5

--.ooo5

I:$$$ -.0005 -. oooz

:E .OOOl .oow

-0.2893 .0265 .0381 .0161

I:$g -.0032 --.oiKM

.a005

.nno5

.OWl -. wo1 -. 0001

aim0

:Ez

:E

I -

- : Shear Row, qii, at station-

Shear lb\\-, ~ijl,, nt stntlon- i

I- / 0

4 3

- i=O i=2 j -

0

:: 3 4

i 7

i 10 11

:i 14

:i 17

j -__ i=5

0.004G .a105 .a115 .a095 .0061 .a024

-.ow5 -.0025 --.on34 --.0036 --.m32 --.oo27 --.0022 -.0017 -.0013 -.m9 --.cm5 --.oon2 --

-- i=O T i=5

0.006G .0019

2% -.0022 --.ooo3

.ooll

.0016

.0012

.OOO6 -. oool -.ooo5 -.oca5 --.ooo4 --.ooo2

:E .ooOl .lWOl

i=3

0.0235 -.0025 -. 0097 -. 00%

:E .0035

:E? -.ooo9 -. 0010

-2% .OOOl

:ET

:!EiZ .oooo

i=l

0.1086 -. omi -. 013G

.0147

.a151

.oQ48 -.oo27 -.oo43 -.oo25 --.Mm5

.ooo4

.cm4

.a001

:%Z .oooo

2% .oooo

- i=l i=ll i=4 j=3 i=5

0.0058 0122

:0127

: IIE.i .0019

-. 0011 -_ 0029 -.oo36

-:EF --.a026 --.a021 -. OOlti -. 0013 -. 0009 -_ on06 -, no02

i=l i=2

I). 0346

: “OK .0072 .oim4

-_ oil29 --.OO38 --.lKl36 --.0031 -. 002i -.oo24 -.a022 -. 0019 -. OOlF -. 0013 -.wo9 -.oalG --.nwz

i=4

0.0122 0.0072 .0196 .0142 . Olti4 .0139 .nloz .0102

W42 .a055 --.Om3 .0013 -. 0038 -_ 0016 -. nn38 -.OQ32 -. 0037 --.W3i -. 0032 -.oQ35 -. OQ27 -.oQ30 -. 0023 -.OQ25 -. cull9 -. 0020 -. GillfJ -. OOlG -. 0013 -. 0013 -. 0009 -.olM9

3% I:=;

i=2

0.0232 .a273 .a133

%X -. 0021 -.w37 -.oo38 -.oo34 -. 0028 --.a024 -. 0021 -. 0019 -. OOlG -. 0013 -.ooo9 -. 0006 -.om2

0.5660 1447

. :OYli .a155

-. 016B -, 0158 --.a057

:t% 0010

-:E -.OOOZ

.oQoo

.Mx)l

.OQOl

:E onoi)

---

0.0506 -. 0169 -. OlGG -.oQ32

.w54

.a066

.oo34

-2% --.0017

-:E .lwo2

:E

:z

5%

0. 131i .o34li .a073

-. 0010 -.0027 -.M)28 -_ 002i --.0027 --.OQ2i -. 0026 --.0024 -.w22 -.a019 -. 0016 --.0013 -. 0009 -_ IKKIB -.lHlOZ

O.Oii9 .o375

0141 :0025

-. w22 -.oo35 -. 0033 -. 0030 -_ 002i -. no26 -. 0024 -. Oil22 I:$;;

-. 0013 -_ 0009 -_ OOOG -_ cm2

n. OliO 0.0094 0233

: 0175 ,016i

0152 .009G :a103 .0031 .a049

-. 0012 owfi -. Oil33 -. w22 -_ 0038 -_ w35 -_ W36 -.W3i --.0030 -.0034 -_ 0026 -.0029 -_ 0022 -. 0024 -_ 0019 --.0019 -_ 0016 --.OOlG -. 0013 -. 0013 --.wQ9 -. 0009 -. oom -, owti -.oov2 -. MM2

0

i 3 4

I!

i 9

8 12 13

:“5 16 17

0.1158 .0361 .a093

--.OCiN -. cm7

I:$2 -. mm -. 0027 -. W26

2% -. 0019 -. 0018 -. 0013 -.ono9 -.nm -.orm2

0.0400 .03(il .a172 .0051

-. 0012 -. 0035 -. 0037 -. 0033 -. 0029 -. 002B --.0024 -. 0022 -. 0019 -.0016 -. 0013

::g; -. tlnnl

4

i

i 9

10 11 12 13 14

:i 17 18

- -

Page 58: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 20.-LOAD DISTRIBUTION DUE TO A EXIT PERTURBATION LOAD

[B = 300; C = 2 X 100; n‘ = 3G]

(a) Coucentratetl perturbation load on stringer j= 0 at (b) Distributed pcrturbat,ion load on stringer j=O ring i=O between rings i=O and i= 1 (c) Shear perturbation load about shear panel (0,O)

j .-- _-

a 3

5"

F

i 10

:4

::

:: 17 18

Stringer load, pii, nt station- Stringer loud, pi;, at station- Stringer load, piill,, at station-

j-3 i-3 / is.4 1 j=5 ( i=(j / i=O

0. lOY3 .0794 .0508 .0326 .0211 .Ol32 .078 .0040

wJ1.5 -.OWO -.ooo9 -. 0014 -. 0017 -. WI8 -. 0019 --.oo20 -.0021 -.on21

i=.$

_---

0. IfilF .a345 .0429 .a240 .0138 .oo77 .w39

WIG .wm

-.wo3 -.om7 -.lnm -. ooin -.Inl11 -. 0412 --.oolZ -.0013 -.oo13 -.tM13

i=2 -__

-0.2133 --.0251

.a114

.Ol70

.a133

.0070

.0016 -. 0014 -.Qw. -. 0017 --.woY -.OOOZ

.WXJl

.KlOl

.Mx)l

.oolxl

:E

-

.- i=o , ’ i=l i=2 i=! i=4

.___

-0.Oi44 -.a337 --.oLl71

.0937

.c074

.0074

.0055

.0030

.ooo9 -.lxQs -.w12 -.0012 -.oc09 -.Mx)5 -.0002

.wiul

:k%

i=5 i=6

-0.0453 -.0291 -.ooQS

.cm2

.0046

.@I59

.cKI53

.GQ37

.0019

.@tM4 -.OWG -. Co10 -. 0010 -. 0010 --.iKlo5 --.wQ2 -. 0001

.woo

-0.0283 --.023.3 -.0107 --.oo21

.0025

.0044

.GQ46

.0038

.0025

.ooll

-:E --.ooo9 --.M)o9 -.ooo7 -.ooo4 -.ooo2 -. 0001

/ I- j=l / i=2 j=j

0. 1303 .n830 .a479 .0288 .a177 .a105 .0058 .0027

wn8 -.lm3 -.nMlY -.LKll2

0. won 0 II 0

II

! 0 0 0 0

:! II 0 0

II

0.3397 .a540 .a163 .oo70 .C032 .ool4 .lwo6 .onoz

-:E -.OCQl -.wo2

-:El! -.M3 --.lxw)4 -.cm4 --.ooQ4 -.cm4

Il. 2424 Oi6ti

.0298

.a145

.oQ74

.0+X6 MI16

.lxM5

-:Z -.ouo3 -.tllN4 -. o(X):, --.nwR -.oKl7 -.wn7 -.cQo7 --.ooos --.wox

0.1822 .a840 .0395 .a211 .Oll8 .cQ63 .0031 .0012

nom -. ow3 - 0OOti -.WXli -.two8 -. MN!) -. ou1n -.ot~ll --.ooll --.0011 --.0012

0.1438 .a342 .0459

0266 .0158 .0091

on49 : 0022

OWCi --.wn3 -, on08 -. 0010 -_ MJl2 -_ WI3 -_ 0013 -.ool4 -, 0015 -.Gill5 -.GQl5

0. II84 n8i4

1049i .a309 .a194 .0119 .0068 .0033 .Wll

--.0002 -. 000!1 -. Gill3 -.tx115 --.Mllfi -. 0017 -. 0018 -. 0019 -. 0019 -. 0019

o.ztno .a?311 .0350 .0179 .OOOG .0050

cm23 .ono8 .wll

--.rnm -.nw5 - nixni

-0.1250 -.a349 -. OQlO

.0091 OlOG

.OQ83

.a047

.0014 -.clovl -.a015 -. 0015 -. WI0 -.culo5 -. Oil01

.a001

.wol

.OOOl

.ww

0.4132 0.2872 .0305 0670

WXR .0234

-0.3630 ..a214

: 2: .007G

--.0014 -.oQ39 -. 0029 -. 0011

0001 .ooil4 .@Jo3 .ooOl .WW

--.OOQl .owo

:Ez

.Ml34 : 0015

0006 .w3 .Gwl

0000 0000

-.OWl -.OOOl --.mt --.wm -.ooQ2 -. 0002 --.oom -.lloo2 - Oow

(0103 .a053 .0024 .I010 .ooo3

OONI -. 0001 --.wloo2 --.ww

-:iE 1 -:iE -.OOOR i --.0008 --.wnfi --.olw9

gii' 1 -:Ei

i I --.Oo10

- Shenr flow, qii, at. station-

i=l i=2 i=3 -__

0. ox'xl --.0607 -. 0142

0108 .0167 .OllO .0027

-.oo28 -.cQ43 -.0032 -.ool5 -.ooo2

.onn4

.wll4

.nnm

.oow

:Ei% .wiM

0. 0626 --.a257 -. 0159

-:%i .a070 .0057

OOZG -.ooo2 -. 0018 -.w20 --.0#14 -.lKKJ6

nlnJn .ooo2 .oolo2 .ooOl

:Ei

0.0400 -. 0105 -.a117 -.0056 -.ooo2

.cQ31

.cil40

.0032

.0x6

.OCHN -.Mlo9 -.0012 -. 0010 -_ owli --.tMl2

.lMOl

.ocQ2

.woz

.woz

j

0 1 2 3 4

i

L

1: I1 I2 13 14 15 I6

:;:

_- i=O

-__

0. 4336 1597 Ill%

:n440 -. 0019 -. 0171 -.a143 -.OO65 -.wo8

.0014

.tn113 ow5

-.nwl -. lHHl3 -.tnx12 -.wn1

:E .oooil

- --

j=3

0. 0192 .019il .012ti .Wil .lM31

wnz -.cQ15 -.W25 -.lM29 -.W29 --.W27 -. 0024 -. w2n -.Wlli

-:E -. cGafi --.ow2

i=5 1 l- i=o _~-

0 t 2 3 4 5 6

i

1: II I2 13 14 I5 .

0. 0x02 02m IMOY

.002x --.ow4 -. 0018 --.oo23 --.oK!5 --.nn2li -.tlO25 --.W24 -. IHIZ -.nnt9 --.llntf', --.IlOl3 --.OOlO

f’; ( I:!$$

i=5

0. 0105 0140

.Olll : ;;; .OOl3

--.lPxl7 -.wao --.w2fi -.lHl29 --.I028 -. no2R -.nt)2l --.tXlli -.tJul3 --.noo9 -. llno5 -.ocQ2

-- i=l

Il. 0486

:114E 0o.w

.occa --.ool4 --.OO24 --.0028 --.a027 --.W26 -.lXl24 --.nn21 -.nnt9 -.txlt6 -.0013 -.omY -. cw.l -.ooo2

i=2

0. 0301 .O!!27 .out .lKIB4 .a021

--.ciml6 -.0021 -.0028 -. on29 -.oo28 -.1X125 -. 111122 -.txllY --.Wl6 -.Wl3 -_ Ml10 -. cm6 -.nooz

- i=4

i=4

0.0257 -.no35 -.(x)81 -.w54 --.lxllU

.oiMQ

.W24

.0026

.0019

:E --.m -. won -.wo7 -.ow5 -.9902

:E .oooz

i=O / i=l i=5 1 1

: 0. nnxli 0

i=4

II. 0127 0155

:0117 Wi4 N3i

-: bG -.0021 --.oo28 --.cmY -. onxi -. lK125 --.0021 -. OOli -.Wl3 -.0010 -. 0lmi --.a002

i=2

0. 03X6 11244

: 0120 .Ot)S8 .on15

-. 0010 -.OO23 -.a028 -.tJo28 --.lHl27 -.cil25 -. IIn --.IWlI!~ --. wtli --.Wl3 --.0010 -. owfi -.lnm

i=3

0.0242 0208

.0129 : yl6;

--.0002 -.M)l8 -.Otl27 -.a029 -. w2x -.lXl26 -. 0023 -. 0020 -.901ti -.txll3 --.wIY -. WW -.lJwz

/ - 0. Ill63

-.cm2 -.tKls4 -.M146 -.0024 -.ocm

.0012

.0018

.0018

.GQ12

.ooo5 --.wol -.notJ5 -. Woe --.llotJ5 -.oouB -. wet

:E --

0.01s7 .Ol72

n121 Wi3

.cm4

.wo(i -. 0012 --.0023 -.OOZR :I wz&

-.IHl24 -. wt --.tlnli --.0013 -.0010 -.otm -.lKio2

II. 08lIx 02,5x

: w9“ .0024

--.Mx)5 -.a017 --.cQ22 --.a025 -.w2li - wz5 --.vmJ -. 0022 -. noI8 --. WI6 -.lJOl3 -. 0010 --.OoiJli -.oon!!

0. 0li30 lMi.5

:(I114 .tx)40

ow2 --.Wl7 --.0024 -. 0026 --.oo2li -. w25 -.w24 -. wu -_ 1101!) --.:Hllli --.:x113 -. WOY -. owi --.cw2

.OlZli I 0106 a

* :;;," :,

.oolli -.lMo4 -.a017 --.W25 --.0028 --.9mi -. 002li -. t1022 -. WIX --.lxJl4 -.no10 -. OWR -.oom

-I

i 5 G R

/ Ii! II 12 13 14 I5 lli Ii

I- -

Page 59: T, NATIONAL ’ ” -. .> ,. ,. :

TABLE 30.-LOAD DISTRIBUTIOS DUE TO .4 USIT PERTURBATIOX LOAD

[/?=l,rn; c=2 x lo? m=36]

(a) Concentrated perturbation load on stringer j=O at (b) Distributed pcrtrlrbatiou load on stringer j=O ring i=O b&wren rings i= 0 and i= 1 (c) Shear perturbation load about shear panel (0,O)

Stringer load, p,i, at station- Stringer load, p,:, at station- I Stringer loed, piilL, at statim-

i=G

0. 1656 o!m WY1

: if; oil96

.oim4

.0042

.0025

.0012

.cm2 -.0005 --.ooll --.cQ15 -. 0018 -.@I21 -.cO22 -.w22 -.w22

j i=5

j

--

:: 3 4 r ;I 7

9" 10 11 12 13 14

ii li 18

- - - T - i=2 i=3 i=4 i=5

0. IYI9 llil(li I)351

.lllY2

.I1121

.(x)79

.@I53

.0033

.rm19

.0009 0001

-.ccQs -. 0010 -. 0012 -. 0015 -. 0017 -. OfI -. 0018 -. 0019

i=l i=2 i=O i=l i=3 i=4 i=j i=G

-0.1295 --.04w -.0082

IO016 .0054 .0065 .Mm .0052 .0037 .cmn .OOlO

-. 0001 --.0007 -, 0010 --.cmlO -.OW8

2%

0. 4482 Olii

: IJll4A .ull2l .call .OlW .Owl4 .0002 .OCQl .OCUl

owo

-3% -. 0001 -.OOOl -.cilo2 -.lMa2 -.(xX)2 -.0002

i=3

II. 2964 I1612 02oi

:wi ooel

.I10311

.OO24

.lw4

.Mm8

.oim

-:Z --.ooo5 -.calfi -.MlO7 -.ooaa --.ooo9 -.0@39 --.OcQ9

i=4

0. 2464 0. 2080 Oil3

:02i3 Oil%

:0327 0141

1 IMXli lllii

:0109 0055

:0035 .0071 ,004;

.iM21 .0029

.0012 .a017

.cax .lm7

.lMxl .OCQl --.0004 --.ooo5 --.Om7 -.OlW8 --.ooo9 --.0012 -_ 0010 -.cQ13 --.0012 -. 0015 -.0012 -.0X6 -. 0013 --.CiIlF -. 0013 -.OfJl8

i=fi _-__- -‘_ --

- I -

0.4011 .I)331

oNJn9 .0042

IN23 .nO14 .o@l8 .ooo5 .0003 .OOOl

-:E --.0002 -.0002 -.rm3 -.0003 -.cGQ4

I$$;

0. 3262 .I1542

0170 0083

.llO48

.Oil30

.W18

.Oilll

.owJ6

.lxQ2

-:g

-.cKJo5

I:$$ -.Ow7 -.0007 -.0007

II. 2256 .0747

0302 OIli

: g!! .w41 .0025 .cfJ14 .CW6

z;g --.cQlO -.cQ12 -.0013 --.0014 -.0015 --.w15

-0.0975 -.03n7 -. 0106 -.0004

.0037

.W52

.@I55

.a049

. oil39

.0027

.0015

.0005 -.0003 -.wO7

z:g; -.lw5 -.m2

-0.4189 .0149

02w :023i .Ol39 .lHl51

--.OaO4 -.lXl26 --.0026 --.0016 -. 0006

.oooo

.lm3

.cm2

.WXll

:E .rmno

-0.3132 -. 0190

: IZ .0137 .I~101 .lM58 .0021

-.rm3 -. Oil15 -. 0017 --.0013 -.0008 -.0003

:E .OCOl .cmxlo

-0. 2326 -_ 0’131

ObO7 : OonG .0103 .ooY4 .0071 .M)44 .oom

-:%I

1: g:; -. 0010 -.C036 --.ooo3 -.CNMl

cm00

-0.1732 -. 0386 -.0047

.0046

.lM75

.co79

:%T .W32

:Z!i;

2% -.M)ll -. 0010 -.Om7

I:%;

.a059

.OQ38

.w22 0010 oca

-.09Q5 -_ 0010 -.0014 --.0016 --.a018 -.cQ20 -.0021 -.0021

- Shear flow, pii, at station-

Shrar Box, qi,L. at ststion- Shear flow, qijL, nt station- j

0 1

: 4 5

:

:

I

:; 14 15 16 17 18

-

--

-

i=O

0. 3209 1536

:12ss .0709 .0234

--.I3044 --.0145 --.0137 --.lm35 --.0034 -. oool

.Wll

.oOll

.W06

.00X -. cm1 -.lxm -.MWl -.OMll

- - -

_-

-

- i=O i=l i=2

0.0495 0.0374 0.0285 .0164 .0163 .0155 .0075 .0082 .WB .0034 .0040 .0044

oil10 .o!J15 .0019 -.w4 -.ooOl .cmz --.cQ12 -.rJOll --.lxw -.0017 -. 0017 -.W16 -. 0019 -.@I20 -.0020 -.0020 -.0021 -.0021 -.0020 -.0021 --.0621 -. 0019 -.0020 -.@I20 -. 0018 --.lW18 -. 0013 -. 0915 -.0015 -. 0015 --.0012 --.cQ12 -.M)12 -.oGQ9 --.cm9 -.n%Q9 -.0006 -.CW6 -.lWO6 --.Om2 -.Olxl2 -.wo2

0.0267 -.0053 -.lxmM -.a042 -.0021

-2% .0016 .w19 .0017 .Nl13 .Mm8 .0002

-.m2 -. ooo5 --.WO6

ZEi -.cm7

i=2 i=3 i=4

0.0342

-:E --.@I46 -.lm7

:E .@I24 .0024 .mn9 .oOll .lMO3

-.0002

Z:gj -.cm7 -.oolM

I:%;

i=l i=5

0.0131 .0117 .007x

:Ei .oMl9

-.coo2 -. 0011 -. 0016 -. 0019 -. w21 -.0020 -. Cal9 -. co17 -. 0014 -. 0010 -.OOQ6 -.OaOz

i=O i=l

0.0432

:E .003i

Oil13 -.0002

1: 2;; -.0020 -.0021 -.@I20 -. 0019 -. 0018 -. 0015 --.ixu2 -.lxQY -.OCO6 -.wo2

i=2 r=3

Il. 0327 0.0250 .0159 .Ol49 .a083 .0083 .W42 ,094s .0017 .0020 .nc4ll .0004

-. Do10 -.lxm -. 0016 -. WlS -.oom -_ 0019 --.0021 -. 0921 -.OQ21 -. 0021 -.lmm --.cQ20 -. 0013 -. 0018 -. 0015 -. 0016 -. 0012 -_ 0013 -.ccaY --.cw9 -.oooo -.OKl(i -.ocQ2 -.0002

i=4

0.0192 ,013li .MlX2 .004ti

lKt23 : cc4lli

I:gg -. 0018 -. cam --.lN22 -.oom -. 0019 --.0016 --.0013 -. 0010 -.w5 -.0002

i=5

0.0149 0124

: 0079 w4i

:Ml25 .OOO8

-.olM3 -.cOl2 --.0017 -. 0020 --.0021 --.lKl21 -_ 0019 -_ 0016 -. 0013 -_ oil10 --.OCCJB --.0002

i=3

0.0572 --.0485 -.0140

.M)53

.0144

.0145

.lmY5

.0032 -.0015 -.0038 -. 0039 -.0028 --.@I15

-:E .cm3 .cwl3 .0002 .Wl

0.0544 -.0263 --.0128 --.oa39

.W23

.0057

:E

2% --.m2 -. 0919 --.oom -. 0015

3% .OOOl .ooo3 .ooO4

0.0436 -.0157 -.0102 -.6048 -.CHN8

.lmm

.0035

.0037

.0030

.0018

.cm5

3%': -. cm -. 0011 -.0007 --.ooo3

.ooOl

.ooMl

0.0168 .0130 .I%80 .w47 .CQ24 .Oi?G8

-.MlO4 --.0012 -. 0018 -.0020 -.0021 --.cm21 -. 0019 --.9016 -.co13 -. 0010 -.0006 -.0002

0.0518 .0163

OOi4 .0032 .cmo

-.ccw --.0012 -.CQlF -.lm9 -. cam --.0020 -.wJl9 -. 0018 -. 0015 -. Wl2 -.Oca9 -.lxo5 -.M!o2

0.0218 .0143 .0083 .0046 .0022 .lm5

-.cm7 -.0014 -. 0919 -. 0021 -.0021 -.0020 -.CQl8 -.CQ16

-:%i -.ocmB -.0002

- -