ship drawing lines plan of different ship types. ship types & hull forms ships can be classified...
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Ship DrawingShip Drawing
Lines Plan of Different Ship Lines Plan of Different Ship TypesTypes
Ship Types & Hull FormsShip Types & Hull Forms
Ships can be Classified by their Ships can be Classified by their usage into:usage into:1.Merchant Ships
2.Ferries
3.Service Ships (Tugs)
4.War Ships
5.Luxury and fun Boats
Ship Types & Hull FormsShip Types & Hull Forms
Marine Vessels can be Classified by Marine Vessels can be Classified by their support into:their support into:
1.Aerostatic Support (Hover Crafts)
2.Hydrodynamic Support ( Hydrofoils – Planning Hulls)
3.Hydrostatic Support ( SWATH – Catamaran – Ships – Submarines)
Ship AxisShip Axis The The x-axisx-axis is t is the length of the ship, from
which stations are measured. The The y-axisy-axis is is the width of the ship, from
which buttocks are measured. The The z-axisz-axis is t is the height of the ship, from
which water planes are measured.
y
z
x
The origin is the intersection of Keel – C.L. – A.P.
Ship Hull Form and Geometry
• Since the ship is a 3-dimensional shape, data in x, y and z directions is necessary to represent the ship hull. Table of OffsetsTable of Offsets
• Lines - body plan (front View) - shear plan (side view) - half breadth plan (top view)
Half – Breadth PlanHalf – Breadth Plan
IIntersection of planes (waterlines) parallel to the baseline (keel).
Shear Plan
Intersection of planes (buttock lines) parallel to the centerline plan
Body Plan
Intersection of planes to define section line.
Basic Dimensions and Hull Form Characteristics
• LOALOA(length over all )(length over all ) : overall length of the vessel• DWLDWL(design waterline)(design waterline) : water line where the ship is designed to float• FPFP(forward perpendicular)(forward perpendicular) : imaginary vertical line where the bow intersects the DWL• APAP(aft perpendicular)(aft perpendicular) : imaginary vertical line located at either the rudder stock or intersection of the stern with DWL
LBP
DWL
Shear
LOA
FPAP
Basic Dimensions and Hull Form Characteristics
• LBP LBP (length between perpendicular) : horizontal distance
from FP and AP • AmidshipsAmidships : the point midway between FP and AP• ShearShear : longitudinal curvature given to deck
LBP
DWL
Shear
LOA
FPAP
Beam: B Camber
Depth: D
Draft: T
FreeboardWL
KCL
View of Mid-Ship section
• Depth(D):Depth(D): vertical distance measured from keel to deck taken at amidships and deck edge in case the ship is cambered on the deck.
• Draft(T)Draft(T) : vertical distance from keel to the water surface• Beam(B)Beam(B) : transverse distance across the each section
Breadth(B)Breadth(B) : transverse distance measured amidships
Beam: B Camber
Depth: D
Draft: T
FreeboardWL
KCL
View of Mid-Ship sectionView of Mid-Ship section
• FreeboardFreeboard : distance from depth to draft (reserve buoyancy)• Keel(K)Keel(K) : locate the bottom of the ship • CambeCamberr : transverse curvature given to deck
FlareFlare TumblehomTumblehomee
• FlareFlare : outward curvature of ship’s hull surface above the waterline
• Tumble HomeTumble Home : opposite of flare
Drawing Ship LinesDrawing Ship LinesDrawing Lines Plan
Non – Dimensional Offset Non – Dimensional Offset TableTable
WL 0 WL 0.5 WL 1 WL 2 WL 3 WL 4 WL 5 WL 6 WL 7 WL 8 WL 9A.P. 0 0 0 0 0 0 0.143777 0.328895 0.461358 0.55718 0.620801ST 1 0.024473 0.065013 0.072933 0.072933 0.086684 0.170409 0.367972 0.545692 0.667276 0.735683 0.763795ST 2 0.047224 0.134639 0.16275 0.191558 0.242907 0.369017 0.548477 0.700261 0.798085 0.853612 0.881984ST 3 0.111401 0.217755 0.27537 0.342994 0.429417 0.556049 0.694691 0.807137 0.884769 0.928111 0.950653ST 4 0.191471 0.312359 0.403046 0.519321 0.609748 0.712359 0.807746 0.88503 0.944299 0.975022 0.989991ST 5 0.255004 0.436815 0.549608 0.681114 0.762663 0.836466 0.895387 0.941253 0.975457 0.993037 1ST 6 0.374238 0.56745 0.696084 0.814534 0.875631 0.916884 0.948564 0.974326 0.988773 1 1ST 7 0.501305 0.708181 0.82376 0.920017 0.952654 0.971192 0.990513 1 1 1 1ST 8 0.62074 0.820366 0.915057 0.97624 0.987728 1 1 1 1 1 1ST 9 0.693464 0.876545 0.949521 1 1 1 1 1 1 1 1AMIDSHIP 0.672472 0.852742 0.939164 0.991558 1 1 1 1 1 1 1ST 11 0.591819 0.785292 0.897737 0.97537 0.990513 0.990513 0.992602 0.992602 0.992602 1 1ST 12 0.437772 0.683464 0.827763 0.919234 0.947433 0.949695 0.958747 0.963795 0.975283 0.989121 1ST 13 0.308964 0.553351 0.720453 0.83342 0.871105 0.889817 0.898782 0.907137 0.927154 0.956397 1ST 14 0.195822 0.433159 0.601218 0.720104 0.76832 0.788686 0.804439 0.827937 0.859182 0.905657 0.973281ST 15 0.104439 0.316536 0.46423 0.596345 0.640383 0.664926 0.687119 0.708007 0.759617 0.827676 0.925587ST 16 0.055614 0.204352 0.325587 0.450653 0.498433 0.526458 0.549608 0.582855 0.633507 0.714186 0.840209ST 17 0.038033 0.129591 0.206876 0.311488 0.35074 0.379634 0.405831 0.440905 0.502872 0.589382 0.707659ST 18 0.010009 0.066144 0.112533 0.180592 0.214708 0.237337 0.25866 0.296258 0.35074 0.436466 0.561793ST 19 0 0 0.037598 0.075022 0.095997 0.110966 0.130722 0.156658 0.203481 0.267624 0.364839F.P. 0 0 0 0 0 0 0 0.030983 0.060226 0.104961 0.164839
WL 0 WL 0.5 WL 1 WL 2 WL 3 WL 4 WL 5 WL 6 WL 7 WL 8 WL 9Stern 0.015936 0.01753 0.019124 0.021514 0.019124 0.010359 -0.0247 -0.03904 -0.04303 -0.04701 -0.04861Bow 0.900398 0.938247 0.959363 0.98008 0.988048 0.994024 1 1.005976 1.011315 1.018327 1.026295