solidworks cad basics and stress analysis - … · an approved continuing education provider...

An Approved Continuing Education Provider

PDHonline Course M418 (6 PDH)

SolidWorks CAD Basics

and Stress Analysis

John Andrew, P.E.

2014

PDH Online | PDH Center

5272 Meadow Estates Drive

Fairfax, VA 22030-6658 Phone & Fax: 703-988-0088

www.PDHonline.org

www.PDHcenter.com

http://www.pdhonline.org/

http://www.pdhcenter.com/

www.PDHcenter.com PDHonline Course M418 www.PDHonline.org

©2012 John R. Andrew of 89

SolidWorks Parts, Assemblies, and Drawings This course can be completed without SolidWorks CAD software.

SolidWorks Car Assembly, solidsmack.com Subassembly, f1technical.net

A SolidWorks CAD model consists of 3D solid geometry in a part or assembly document.

SolidWorks Factory Assembly, designworldonline.com



http://help.solidworks.com/2011/English/SolidWorks/sldworks/LegacyHelp/Sldworks/Parts/Parts_Overview.htm

http://help.solidworks.com/2011/English/SolidWorks/sldworks/LegacyHelp/Sldworks/Assem_1/Assemblies.htm



SolidWorks includes Finite Element Analysis (FEA) Inch pound and ISO example shown above.

SolidWorks Sheet Metal formed shape. gabijack.com

Sheet Metal unfold.





SolidWorks Assembly Drawing with Bill of Materials

valleytoolworks.com

Insert a part or assembly into a standard ANSI or ISO drawing sheet and create isometric and

orthographic two dimensional views, sections, and details fully dimensioned automatically.

A SolidWorks assembly drawing is shown above. Drawings or assemblies can be created at any

time in the design process.

The bill of materials in the top right corner is created automatically from the 3 dimensional

assembly model. An “Exploded View” is shown on the left. The balloon part numbers are added

by SolidWorks.

Drawings are created from part and assembly models in drafting views in a drawing document as

shown above. Part numbers in balloons are created automatically.

Any dimension can be revised in any part on the drawing and the part model will “Rebuild” to

match. Click on the Rebuild icon to activate the dimension changes.

Associativity between parts, assemblies, and drawings assures that changes made to one

document or view are automatically made to all other documents and views.



http://help.solidworks.com/2011/English/SolidWorks/sldworks/LegacyHelp/Sldworks/drawings/Drawings_Overview.htm



DISCLAIMER: The materials contained in the online course are not intended as a representation or

warranty on the part of PDH Center or any other person/organization named herein. The materials

are for general information only. They are not a substitute for competent professional advice.

Application of this information to a specific project should be reviewed by a registered architect

and/or professional engineer/surveyor. Anyone making use of the information set forth herein

does so at their risk and assumes any and all resulting liability arising therefrom.

CONTENTS

1- START A NEW PART METHOD

2 - FIRST PRACTICE PART – RECTANGULAR PROFILE

3 - SECOND PRACTICE PART - ROUND REVOLVED SHAPE

4 - CREATE A CIRCULAR PATTERN OF HOLES

5 - THIRD PARACTICE PART - SWEEP

6 - CONCENTRIC PIPE REDUCER – LOFT

7 - BOTTOM UP ASSEMBLIES

8 - TOP DOWN ASSEMBLIES

9 - EXTRUDE DIRECTIONS 1 & 2

10 - REFERANCE PLANE

11 - FIRST ASSEMBLY - PIPE ELBOW

12 - SECOND ASSEMBLY - PIPE ROUTING

13 - CREATE AN ASSEMBLY DRAWING

14 - BILL OF MATERIALS

15 - REVISE DIMENSIONS WITH REBUILD

16 - 3D SKETCH AND SWEEP

17 - SHEET METAL BASICS

18 - FINITE ELEMENT ANALYSIS (FEA)

19 - SOLIDWORKS MENUS

1- START A NEW PART METHOD Open SolidWorks and start a new: Part, Assembly, or Drawing.

1 Click on the drop down menu, “Insert” > News:

Or Click on the “New” icon above left > and the “New SolidWorks Document” below will open.





“New SolidWorks Document” dialog box with choices: Part, Assembly, or Drawing.

3

The above window will open next.

A two dimensional sketch needs to be created on the selected plane: Front, Right, or Top.





A two dimensional sketch must be created on a selected plane or surface before the desired solid

model can be created.

Pick the “Right” Plane > Sketch a base feature and centerline shown above left.

Click the “Smart Dimension” icon and add dimensions > Exit Sketch.

Form a 3 dimensional “Revolved solid model” shown above right.

Left, click the “Sketch” tab shown above to obtain the sketch tools.

Other solid models include the extruded boss with holes added above.

Lofted eccentric pipe reducer solid model. A 3D dimensioned sketch is the basis of this part.

Lofted parts have multiple cross sections and a path.



http://help.solidworks.com/2011/English/SolidWorks/sldworks/LegacyHelp/Sldworks/SW_Sketch/Sketch.htm

http://help.solidworks.com/2011/English/SolidWorks/sldworks/LegacyHelp/Sldworks/Features/Features_Overview.htm



Swept solid models Click the “Features” tab shown above to obtain other tools.

Click the “Display Mode” icon to obtain the part or assembly modes above.

Left geometric “Relations” between lines in a sketch may be inserted manually. Right geometric “Relations” between parts in an assembly may be inserted manually.





WEB LINKS SolidWorks web site: www.solidworks.com 3D ContentCentral online at: (http://www.3dcontentcentral.com/default.aspx) is a free source of

SolidWorks part and assembly models.

SoldWorks in Ten Minutes video: http://www.youtube.com/watch?v=pFy8iijJSHM&feature=related

Getting Started with SoldWorks video:

http://www.youtube.com/watch?v=cmC2MLRetko&feature=related

Large Assembly layout and motion http://www.youtube.com/watch?v=uMnd69-

aueM&feature=related

SolidWorks - Assembly Layout and Motion

File > New > Assembly > Create Assembly > Sketch > Blocks

http://www.youtube.com/watch?v=BFzuDaMfGrE&feature=related

3D ContentCentral® is a

free service for locating,

configuring, downloading,

and requesting 2D and 3D

parts and assemblies, 2D

blocks, library features,

and macros.

Join an active community

of 903,735 CAD users who

share and download user

contributed and supplier-

certified 2D and 3D parts

& assemblies, 2D blocks,

library features and

macros.



http://www.solidworks.com/

http://www.3dcontentcentral.com/default.aspx

http://www.youtube.com/watch?v=pFy8iijJSHM&feature=related


http://www.youtube.com/watch?v=uMnd69-aueM&feature=related


http://www.youtube.com/watch?v=BFzuDaMfGrE&feature=related




2 - FIRST PRACTICE PART – RECTANGULAR PROFILE

Follow the steps below to create the, “FLANGE BRACKET” solid model shown above.






Start the 3 Dimensional Model by clicking on the “New” icon or pick drop down menu: Insert >

New.

Click left mouse button: New > Part > OK. The “Feature Tree” below will now open.

A two dimensional sketch must be created on a selected plane or surface before the desired solid

model can be created.

Click the, “Features” tab to obtain the “Feature Tree” > Click “Front Plane”

Make a profile sketch on the selected Front Plane as shown below.





Open the “Document Properties” box shown above to change units of measurement.

Pick drop down menu: Tools > Option > Document Properties > Units > IPS (inch, pound,

second). MMGS (millimeter, gram, second) is also available.

The Origin, x, and y directions are shown in the chosen front plane.





Pick: “Sketch” tab > Pick the “Rectangle” tool >

Right click the “Origin” > Drag mouse pointer to a temporary top right corner > Click.

Click the green check mark (OK) to complete the rectangle command.

Horizontal, Vertical and other geometric relations between lines are added automatically by

SolidWorks.

Or manually using drop down menu: Insert > Relations.

Pick “Smart Dimension” tool > Pick the left side of the rectangle >

Drag dimension away from the rectangle and pick to place the dimension as above.

Modify the dimension > type 5 > Click check mark to complete the command.





Dimension a side normal to the first dimension.

Modify the dimension > type 5 > Click check mark to complete (OK). Click “Exit Sketch”.

Pick the “Isometric View” icon in the “Views” toolbar above.

TYPE f to fit the object in the display

Pick “Extruded Boss/Base” > Blind > D1 thickness > Type D1 dimension > 0.50in >





Click the above green check mark (OK) to complete the extrude boss command.

Note: The “Boss/Extrude” dialog box allows extrusion in both directions perpendicular to the

profile sketch plane. See “Direction 1” and “Direction 2” above and in section 10 - First Assembly

- Pipe Elbow below.

Model the two holes above.

Pick the front surface of the part above > Select the “Features” tab > Pick “Extruded Cut”.

Pick” Sketch tab > Circle tool > Sketch the 2 holes shown above > Smart Dimension tool > add

0.500 inch diameter and the above hole location dimensions > Click: Exit Sketch.





REFERENCE PLANES

Insert > Reference Geometry > Plane > Pick the right side surface >

Rotate the part by holding the mouse wheel down and drag horizontally across the part > Pick the

left side surface > the above “Mid-Plane” is created by SolidWorks.

Insert > Pattern/Mirror > Pick the two left holes to mirror > the two holes on the right side are

created below.

Cut-Extrude > Sketch the large center hole on the front surface of the part > Click Smart

Dimension > Dimension the center hole 3.00 inch diameter and add the hole location dimensions >

Exit Sketch.

Insert > Cut > Extrude > Thru all > Click check mark.

Insert > Features > Chamfer > Pick each of the 4 corners > OK

Or click the “Fillet” icon drop down menu > Chamfer > Pick each of the 4 corners > OK





The “Features Tree” above lists all operations performed on the part (or assembly) model.

Double-click on an icon to modify that feature in the part.

Pick the front surface > Sketch > Circle tool > Smart Dimension > 3.00 diameter >

Tools > Sketch Tools > Convert entities > Click on edge of the 2.75 inch diameter circle > Click the

green check > Exit Sketch.

Insert Boss/Base > Extrude > Pick the ring > Click the green check.

Click ring base > “Fillet” icon or Insert > Features > Fillet/Round





Click “Isometric View” in the “Orientation” dialog box above.

Save As > BASE PLATE > “.SLDPRT” is added by SolidWorks.





PARAMETRIC CAD The rectangular plate solid model with five holes has been fully dimensioned and saved.

It is possible to re-open this part in SolidWorks, double click on its surface, and change one or all

of its dimensions.

SolidWorks software utilizes a design feature called parametric computer aided design, a method

of linking dimensions and variables to geometry in such a way that when the values change, the

part changes as well.

A parameter is a variable to which other variables are related, and these other variables can be

obtained by means of parametric equations.

In this manner, design modifications and creation of a family of parts can be performed in

remarkably quick time compared with the redrawing required by traditional CAD.

In the past five years, PTC's success has prompted major CAD players to offer similar functions.

Parametric modification can be accomplished with a spreadsheet, script, or by manually changing

dimension text in the digital model.

3 - SECOND PRACTICE PART - ROUND REVOLVED SHAPE





Follow the steps below to create the above “FLANGE” revolved shape solid model.

Start the 3 Dimensional Model by clicking on the “New” icon > OK

Right click > “Right Plane” under the “Features” tab shown above.

Origin and x and y directions are shown in the Right Plane.

“Sketch” tab > Pick the “Line” tool shown above.

Sketch the shape shown above with the line tool by following the steps below.





Right click on the “Origin” point > Drag mouse pointer to right bottom corner 1 > Release mouse

button > Click on 1 and drag to 2 > 3 > 4 > 5 > 6 > 7 > Origin to complete the “Profile”.

Click the “Line” tool drop down menu > Pick the “Center Line” icon > Sketch the center line AB

above > Pick the “Exit Sketch” icon > OK.

When creating a “Revolved Boss/Base” from a sketched profile there must be an axis to revolve

the profile around.

Pick “Smart Dimension” tool > add the dimensions shown below.

Click to complete dimensioning.

TYPE f to fit the above sketch, part, or assembly in the display area

Add the dimensions shown above with the “Smart Dimension” tool.

Pick the “Isometric View” icon shown highlighted above.





The isometric view above > Pick “(-)Sketch1) above > Pick “Axis of Revolution” above > 360 deg >

Pick” Green arrow (OK).

Pick Sketch1 > Insert > Boss/Base > Revolve > OK

REVOLVED PROFILE

Revolved profile is shown above.

4 – CREATE A CIRCULAR PATTERN OF HOLES A first hole must be created in a part before a circular pattern of identical holes can be made.





To obtain a part sectioned view pick an existing plane in the Features Tree > “Right Plane” or

create a plane relative to an existing plane or surface by clicking: Insert >Reference Geometry >

Plane > Pick an existing plane > Create a new plane at the desired section location > OK > Pick the

“Section” icon below.

Click “Right Plane” in the Features Tree > Click the “Section” tool icon > Click the “Reverse

View”.

1 Click Isometric icon, then click Shaded view mode.

2 Click Right Plane in the Feature Manager design tree.

3 Click Section View on the View toolbar, or click View, Display, Section View.





Pick the flange front surface > Sketch >

Pick: “Line” drop down menu > Pick: “Center line” icon > Pick flange center hole center point >

Drag up > Pick top end point of this centerline > Existing Relations above are > Vertical &

Coicident1 > Add Relations > Vertical > OK.

“Cut” the first bolt hole.

Pick: “Smart Dimension” icon > Dimension the hole 7/8 inch diameter and 4.750 radius > Exit

Sketch.

Pick the bolt diameter circle > Insert > Cut > Extrude > OK





Insert > Pattern/Mirror > Circular Pattern > One flange outer edge > “Edge<1> > 360.00deg >

Number of holes > 8 > Features to Pattern > Cut-Extrude1 > Pick the first bolt hole above left > OK

Insert > Pattern/Mirror > Circular Pattern to obtain the dialog box above left.

5 - THIRD PARACTICE PART - SWEEP

Completed pipe flange part left. Right click on the centerline in the Feature Tree > Click the “Hide” icon (eye glasses) to toggle between hide and

show.





Pipe elbow part is shown above. Pick: Top Plane > Sketch > Circle tool > Pipe inside outside

diameter > (Create the pipe inside diameter) > Offset Entities >.280in > Exit Sketch.

Pick: Front Plane > Sketch the 9.000 inch radius 90 degree arch with > 3-Point Circle > Exit

Sketch. Sweep Boss/Base icon > Pick Sketch1 > Pick Sketch2, in the Features Tree > OK.

6 - CONCENTRIC PIPE REDUCER – LOFT 24

New > Part > OK >

3D Sketch > 3.000 Line > 5.500 Line > 3.000 Line > OK





New > Part > OK >

Circle tool 3.000 radius > Circle tool 2.000 radius > OK

Insert > Boss/Base > Loft > Pick 3.000 radius circle profile > Pick 2.000 radius circle profile > Ctrl +

Q to exit sketch. Click on Front Plane > Insert > Reference Geometry > Plane

7 - BOTTOM UP ASSEMBLIES Bottom-up is the traditional method used by CAD operators. Each part is modeled and saved.

Then the individual parts are inserted into an assembly using geometric relations to position them

in a subassembly or top assembly.

Insert saved parts and sub-assemblies into SolidWorks then “mate” adjacent parts or sub-

assemblies together in a final assembly.

Any changes to a part will need to be done by editing it individually. This technique is practical to

model parts already designed and fabricated, like purchased parts and components (nuts, bolts,

bearings, motors, pulleys, etc.), in general, parts that are imported, and which do not change their

shape and dimensions.





8 - TOP DOWN ASSEMBLIES Top-down assemblies where created from parts modeled "inside" the assembly, being related to

"driving" entities inside the assembly which control the shape, features, dimensions and position

of those parts, in a way that changes introduced to the "driving" entities "drive" the configuration

of all the "in-context" modeled parts and therefore the entire assembly.

Top-down modeling makes possible the creation of parametric assemblies systems, which cannot

be done using the Bottom-up technique alone.

Creating a properly structured Top-down assembly requires more analysis and work that the

creation of a Bottom-up model, however, the advantage of top-down modeling for people doing

product design is that very little work (and time) will be required when design changes occur,

since all parts and components will automatically update to new shapes, dimensions, position,

etc. as new input parameters are entered into the "driving" entities at the assembly level.

9 – EXTRUDE DIRECTIONS 1 & 2

New > Part > OK > Pick Front Plane > Sketch > Circle tool > 6.000 inch diameter circle > OK

Note the “Offset Entities” tool to be used below.





The pipe outside diameter is 6.000 inches.

The pipe wall thickness is 0.375 inches.

Pick “Offset Entities” tool > .375 > OK

The concentric circles sketch is named Sketch2 and added to the “Feature Tree” below

The “Boss/Extrude” dialog box allows extrusion in both directions perpendicular to the profile

sketch plane.

Extrude Sketch2 6.000 inches right to left and 8.000 inches left to right from the Front Plane.

Pick Sketch2 in the Feature Tree shown above > Boss Extrude > Front Plane > D1 > 6.00in > D2 >

8.00in > OK.





The pipe extruded in two directions is shown above.

Pick the front plane in the Features Tree > Sketch > Pick the line drop-down menu > Center Line

Pick the Origin and drag right to create the horizontal line above > Exit Sketch.





10 - REFERANCE PLANE

Pick the front plane > Insert Reference Geometry > Plane

First Reference > Front Plane

Second Reference > Centerline (Line1@Sketch2) > Angle > 45.00 deg > OK

Sketch the concentric circles on plane1 by the method described above.





Boss-Extrude > Blind > 9.00in > OK.

Edit front 6.00 inch dimension > 9.00 inch





Click the “Rebuild” tool to stretch the pipe.

Completed “Lateral”

11 - FIRST ASSEMBLY - PIPE ELBOW Begin the assembly by opening two existing parts “Elbow and pipe 1” in SolidWorks.





Pick: Start > Assembly > OK.

The “Elbow” and “pipe 1” parts above have been created by the methods described.





These two existing parts have been previously opened in SolidWorks, “Elbow and pipe 1” and

appear automatically in the above “Insert Component” dialog box.

If the “Elbow and pipe 1” parts had not been opened, click Browse, locate the file containing the

parts, and insert them.

Drag one part at a time into the assembly area shown right above.

The first part dragged into the assembly area will be “anchored” and not able to be moved or

rotated.

Insert component > Existing Part > pipe 1.

This is the first component of the assembly and it is anchored. It cannot be moved or rotated.

Pick the “Mate” paper clip icon on the Assembly tab > Pick outer edge of Pipe end > Pick outer

edge of Elbow end > OK





Rotate the Elbow 180 degrees relative to the fixed pipe 1 by the method below.

Pick pipe “Right Plane” > Hold “Ctrl” key > Pick elbow “Front Plane” > Mate >





Type “180” deg > Green Check > OK. The Standard Mates dialog box above will open or:

Pick drop down menu: Insert > Mate > Pick pipe “Right Plane” > Hold “Ctrl” key > Pick elbow

“Front Plane” > Type “180” deg > Green Check > OK.

Completed Pipe Sub-Assembly Geometric “Relations” between parts.





12 - SECOND ASSEMBLY - PIPE RUN

“SOLIDWORKS PREMIUM” has “Pipe Routing” add-in items above and below. YouTube https://www.youtube.com/watch?v=uSST3W0_Ojs

Design Library > Equipment > Tanks > Pumps > Fittings > Valves > etc.

New > Assembly. Tools > Add-Ins > Routing > (Electrical, Piping & Tubing)

Drag Tanks, Pumps or other into the assembly area.

1. DRAG & DROP onto Equipment Equipment > Pick a Flange > Drag this flange onto a point on a Tank or other equipment item.



https://www.youtube.com/watch?v=uSST3W0_Ojs



2. DRAG & DROP onto 3D Sketch Start Point Pick a Flange > Drag this flange onto the 3D Sketch Start Point

Select a flange and place it at the pipe starting point > “TAB” key to orient. Accept the standard configuration in the menu on the left side of the screen.

Create lines in the 3D Sketch area. SolidWorks adds the pipe run. “TAB” key to orient.

Select the Standard 4 inch 300 lb per

square inch pressure pipe flange.

SolidWorks creates a short

stub pipe in the slip-on type

flange.





Use SolidWorks “ Extrude” to create straight sections of pipe and

“Pipe” “Routing” for elbows, tees, valves, and flanges.

Open “Design Library”





Create straight pipe sections and insert elbows, tees, reducers, pumps and

valves from the SolidWorks Design Library.

Pipe run assembly example is shown above.

Note the list of nine parts above right that have been previously created by the methods described

in this course above.

Open the nine piping items in the list above or Browse for each part one at a time by:

Insert > Component > Existing Part/Assembly > Browse > Flange >





Insert > Component > Existing Part/Assembly > Browse > Elbow >

Having started an assembly click the, “Assembly” tab > “Mate” icon > Pick the Flange mating

circular surface > Pick the Elbow mating circular surface > Green Check > OK.

Elbow end surface and Flange end surface have been picked.

The geometric “Relations” dialog box of tool icons are shown above right.

Click “Mate” > Concentric > Pick Elbow end inside edge > Pick Flange end inside edge > OK

Click “Mate” > Concentric > Pick Elbow end outside edge > Pick Flange end inside edge > Click

the “Reverse” icon > OK





Insert > Mirror Components > Pick Mirror Plane > Pick flange face > Component to Mirror > Pick

the top right flange > OK > Rebuild.

Click the “Mate” icon > Pick the Flange mating circular surface > Pick the Pipe mating circular

surface > Green Check > OK.

Click “Mate” > Concentric > Pick Pipe end inside edge > Pick Flange end inside edge > OK





Insert > Reference Geometry > Axis

Insert > Reference Geometry > Plane





“Insert > Mate” as described above repeatedly to complete the pipe assembly.





13 - CREATE AN ASSEMBLY DRAWING





Completed pipe assembly drawing with bill of materials in an ANSI A size drawing template.

Open the assembly to be inserted into a 2D drawing.





File > Open > Browse for the folder containing an assembly or part to place in a two dimensional

drawing.

The desired assembly is now open in SolidWorks.

File > New > Drawing > OK >

To open an “A” size drawing template, click drop down menu:

File > New > Drawing > OK > A (ANSI) Landscape > OK.





A blank standard ANSI A size template has been opened. Other template sizes are available.

A custom template can be created by modifying one of the standard templates and saving it.





Insert > Drawing View > Model Click the: Model View tab > Model View icon >

Check “Create multiple views” > Pick desired views > Green check mark >

View boxes appear in the drawing above after the above commands are made.





The Isometric view is not usually dimensioned so choose “No”.

The 1st Angle views above inserted by the software need to be changed to 3rd angle.

1st angle views have been changed to 3rd angle views

Click on a view > pick an edge of the view box > drag view to a new location.





Right click on “Sheet Format1” > pick Sheet Properties > click Third Angle in Type of projection.

Right click on “Sheet Format1” to edit the title block.

Open System Options by right clicking on a view in the drawing.

Click on “Display Style” > Hidden lines removed.





Initial title block to be updated.

Double click on item to be edited.

Drawing title, “Assignment 2-8” has been changed to “Pump Piping”.

Right click on “Sheet Format” to exit edit.





Right click on the bottom right view in the drawing > The “Drawing View2” dialog box will open.

Click “Use custom scale” > Select User Defined > Change the scale from 1:48 to 1:32.

Pick the top left view and change its scale also.





The new scale is 1:32 for the Isometric and three 2D views.

Tools > Options > Document Properties > ANSI

Next, click “Units” and select US or Metric.





ADD DIMENSIONS TO DRAWING VIEWS – METHOD-1

Pick the “Line” icon drop down menu triangle > Pick “Center Line” > Pick the approximate center

of a pipe and it will snap to the exact center > drag the center line horizontally or vertically to

increase its length.

Pick the “Smart Dimension” icon and add the dimensions shown above.

Add all necessary dimensions to each view.






Pick the drop down menu > “Insert” > “Model Items” to obtain the box above.


Pick the drop down menu > “Insert” > “Model Items” to

obtain the box above.

Select features in a view and dimensions that were used

to create the part will be inserted by the software.

Or check the box, “Import items into all views”.

Click desired items under headings: Dimensions,

Annotations, Reference Geometry, and Options.





Right click the top left view > Pick the “Shaded with edges” icon highlighted upper left.

The top left view is now “shaded with edges”.





Make room for the Bill Of Materials, BOM.

Remove the view at bottom left.

Right click the bottom left view boarder > Delete key > OK

14 - BILL OF MATERIALS Pick drop down menu: Insert > Tables > Bill of Materials > Select the isometric or other view >

File > Print Preview > Print

Pick the top left view again > Insert > Tables > Bill of Materials > OK

Place the BOM at a convenient location with the mouse pointer.





The Bill of Materials has been placed at a convenient location in to the drawing.

Add part number balloons automatically. Right click on the top left view > Annotations > Auto

Balloon > Style > Box > OK. The “Balloons” are added to the drawing. Pick a balloon and drag to

move as required for readability.





The finished dimensioned two view drawing with Isometric view and bill of materials.

15 - REVISE DIMENSIONS WITH REBUILD Part dimensions may be edited in the drawing followed by “Rebuild” to update the part and

related assemblies.

Double-Click on dimensions to edit > Click outside the edit box to close this command.

Click on the “Rebuild” icon shown above to make the change to model dimensions. The drawing

and model dimensions will be changed.





16 - 3D SKETCH AND SWEEP

Step-1 Build the Tank and Pump SolidWorks 3D assembly above and save.





Step-2 Add the 8”x 6” eccentric reducer with flange bolted to the pump suction flange.

New > Part > OK >

Circle tool 3.000 radius > Circle tool 2.000 radius > OK

Insert > Boss/Base > Loft > Pick 3.000 radius circle profile > Pick 2.000 radius circle profile > Ctrl +

Q to exit sketch. Click on Front Plane > Insert > Reference Geometry > Plane

6 x 4 ECCENTRIC REDUCER





Create a pipe run from the above tank discharge flange to pump suction flange.

Step-3 Create the dimensioned drawing above, save and print a hard copy.

4 Write values of dimensions A, B, and C on the above pump-tank picture. 5 Create a “Plane” on the 8” diameter face of the 8”x 6” eccentric reducer.





6 Open the 3D assembly and make a 3D Sketch pipe line from the pump suction 8”x 6” eccentric

reducer to the tank outlet.

Insert > 3D Sketch > Line tool > Pick the 8” diameter center point on the 3D Sketch start plane >

Drag to form Line C > Tab key to change direction > Draw line B > Tab key to change direction >

Draw line A terminating at the 8” diameter tank Suction Flange.

7 Insert the 6” and 8” Gate Valves.

8 Create the 8 inch diameter pipe run, Tank to Pump with the “Sweep” command.

SOLIDWORKS SWEEP – PIPE RUN

1-SWEEP 2-EDIT SKETCH





3-REBUILD 4-DESIGN TREE

17 - SHEET METAL BASICS

Right click on a menu > select Sheet Metal menu.





Select “Base Flange” > Sketch > Rectangle > Smart Dimension > 6.00 x 4.00.

When sketch is done > Pick green check mark top left or OK icon (shaded) top right.

Sheet metal “Base Part” > Pick one edge > Pull arrow up or down >





Enter Flange Length > 1.00 > Pick > Flange Position > Ok > Rebuild > Save-As.

Sheet Metal > Base Flange/Tab > Sketch > Rectangle on an edge > Dimension.

Sheet Metal > Base Flange/Tab > OK > Rebuild > Save. Tab is created.





Sheet Metal > Sketched Bend > Pick top surface > Line > Sketch line > OK > OK > Sheet Metal > Sketched Bend > Pick top face > Bend Position > Angle > 45 > OK.

Tab at 45 deg. Created.

Repeat “Sheet Metal > Sketched Bend” on tab top surface > Bend > 45 deg. > down.

Sheet Metal > Flatten > OK. Sheet Metal > Flatten again > Bent Part > OK.

New > Drawing > A-Size Landscape.





View Layout > Standard 3 View > Annotation > Place Dimensions

Pick > New Sheet (at bottom left) > Model View >

Double click on Sheet Metal part or Browse to find it > Check “Flat pattern”





Annotation > Add dimensions > Save > OK.

18 - FINITE ELEMENT ANALYSIS (FEA)

SolidWorks CAD software includes finite element analysis applied to: stress,

deflection, fluid flow, and temperature distributions. Open SolidWorks

Follow the steps below to create the above channel bracket and perform a finite element analysis

to determine the stress distribution and deflections due to applied loads.





Pick the: Right Plane icon > Sketch icon >

Sketch the above channel shape

Pick > Sketch > Line tool > Pick the bottom left corner as shown above > Sketch the channel

profile one straight line at a time.

Smart dim > .375 > .500 > 2.000 > 3.000 > Exit Sketch > OK





Add thickness (6.00 inches) to the rectangle by extruding it.

Select the “Boss-Extrude” icon > Blind > 6.000 > OK File >Save As > CHANNEL BRACKET

Create a round “Load Zone” .750 inch diameter on the top surface of the channel.

Pick the top surface of the channel > Sketch > Circle tool > Sketch the circle >

With “Smart Dimension” Add the dimensions shown above.





Extrude the .750 inch diameter circle.

Pick: Extruded Boss/Base > Pick the .750 inch diameter circle > Blind > 0.125 inch > OK

Circular “Load Zone” .750 inch diameter.

Completed Part

Open the add-on Finite Element Analysis software two ways:

1. Drop down menu: Tools > SimulationXpress. Next add a “Fixture” or anchor > Pick left end

surface as shown below > OK





2. Or: Office Products > SolidWorks > Simulation (wait a moment for the FEA add-on to open)

Pick: “Options” drop down menu > System of units > English inch-pound-second (IPS) or ISO

Boundary Conditions: When a component is isolated for analysis, the way in which that

component is attached to another must be simulated with boundary conditions. In this case, we

have chosen a fixed restraint, which means that every point on the back face of the bracket is

prevented from moving in any direction.

While this seems to be a reasonable assumption, it may not be entirely accurate.

If screws are used to attach the bracket to a wall, then the top screws may stretch enough to allow

the top of the bracket to separate from the wall.

Also, the wall itself may deflect slightly.

The choice of proper boundary conditions to simulate actual constraints is often one of the most

important decisions to be made for an analysis.

Analysis Type: In a static analysis, we assume that that loads are applied slowly.

If loads are applied almost instantaneously, then dynamic effects need to be considered.

A linear static analysis assumes that the response of the structure is linear – for example, a 20‐lb

load produces stresses and deflections that are exactly twice that of a 10‐lb load.

However, if the deflections are relatively large, then the stiffness of the part changes as the part

deflects.

In that case, a large‐deflection analysis, in which the load is applied incrementally and the

stiffness re‐calculated at every step, may be required.





Add a fixture > Pick the channel left end surface as shown above > Next





Next > Add a Force > Pick circular surface as shown above > OK > Next

The channel is now fixed at the left end and a 1000 lb load is applied to the Load Zone.





Choose Material > ASTM A36 > Apply > Close

Pick “ASTM A36 Steel” > Apply > Close > Next





Pick “Run” > Run Simulation >





Run Simulation

Pick “Results” > Play > Stop animation > view results below.

Does the part deform as you expected? > Yes, continue >





Show VonMises stress distribution > Show Displacement >

View “VonMises” resultant stresses.

Mesh Size: A finer mesh, with more elements, will generally produce more accurate results at the

expense of longer processing time. For simple parts and a relatively fast computer, the longer

processing time is not significant.

However, for complex analyses (such as non‐linear and time dependent analyses), mesh size can

significantly impact processing time.

How many elements are needed for accuracy? Sometimes it is necessary to experiment with

different meshes until the results converge to a solution. In other cases, the mesh can be refined

to create more elements in a local area where stresses are greatest.

Element Type: There are many element types, such as plates, shells, truss members, beam

elements, and solid elements. SolidWorks Simulation allows for solid elements to be created from

solids, or shell elements to be created from either surfaces or solid mid‐surfaces.

Although solid elements are typically chosen when a solid model is available, solid elements are

not always the best choice for many applications. Often, a few beam or shell elements will provide

more accurate results than hundreds of solid elements.





Done Viewing Results > Generate Report

FEA BRACKET-2-SimulationXpress Study.analysis.eprt





Mesh Information

Mesh type Solid Mesh

Mesher Used: Standard mesh

Automatic Transition: Off

Include Mesh Auto Loops: Off

Jacobian points 4 Points

Element Size 0.251027 in

Tolerance 0.0125513 in

Mesh Quality High

Mesh Information - Details

Total Nodes 12584

Total Elements 7397

Maximum Aspect Ratio 4.3633

% of elements with Aspect Ratio < 3 99.7

% of elements with Aspect Ratio > 10 0

% of distorted elements(Jacobian) 0

Time to complete mesh(hh;mm;ss): 00:00:02

Computer name: ET-EGT-423-INST





Generate eDrawing File >





The factor of safety in the blue area is greater than 3.00.





19 - SOLIDWORKS MENUS

Start each part by clicking the “Sketch” tab to open the tools shown above used to create a two

dimensional profile.

SoldWorks in Ten Minutes video: http://www.youtube.com/watch?v=pFy8iijJSHM&feature=related

Getting Started with SoldWorks video:




http://www.youtube.com/watch?v=pFy8iijJSHM&feature=related




Convert a sketch into a three dimensional solid model by clicking the “Features” tab to open the

tools shown above. The above are “Sketch Features”.

Continuation of the “Features” tab. The above are “Applied Features”.

Features Video: http://www.youtube.com/watch?v=BiK_KkRhlCY

Generate Features video: http://www.youtube.com/watch?v=Em7LGqNkFIw&feature=relmfu

Having started an assembly click the “Assembly” tab to obtain the tools shown above.

Click the “Evaluate” tab for access to the tools above.

Click the “DimXpert” tab for access to the tools above.

DimXpert videos: http://www.youtube.com/watch?v=EH2HeDULWew&feature=related

http://www.youtube.com/watch?v=Xe_tuF5cUdM&feature=related

http://www.youtube.com/watch?v=THzHFOsqDHE



http://www.youtube.com/watch?v=BiK_KkRhlCY

http://www.youtube.com/watch?v=Em7LGqNkFIw&feature=relmfu

http://www.youtube.com/watch?v=EH2HeDULWew&feature=related

http://www.youtube.com/watch?v=Xe_tuF5cUdM&feature=related

http://www.youtube.com/watch?v=THzHFOsqDHE



Click the “Office Products” tab for access to the tools above.

Bracket Stress and Deflection video: http://www.youtube.com/watch?v=tK8q0gyUhcY

Air Flow Simulation videos: http://www.youtube.com/watch?v=9HhjrZWDsbs&feature=related

http://www.youtube.com/watch?v=X3ecq8MNfk0

Design For Manufacturability with SolidWorks:

http://www.youtube.com/watch?v=ERIMeWU1OJs&feature=related

DISCLAIMER: The materials contained in the online course are not intended as a representation or

warranty on the part of PDH Center or any other person/organization named herein. The materials

are for general information only. They are not a substitute for competent professional advice.

Application of this information to a specific project should be reviewed by a registered architect

and/or professional engineer/surveyor. Anyone making use of the information set forth herein

does so at their risk and assumes any and all resulting liability arising therefrom.

END OF COURSE



http://www.youtube.com/watch?v=tK8q0gyUhcY

http://www.youtube.com/watch?v=9HhjrZWDsbs&feature=related

http://www.youtube.com/watch?v=X3ecq8MNfk0

http://www.youtube.com/watch?v=ERIMeWU1OJs&feature=related

solidworks cad basics and stress analysis - … · an approved continuing education provider...

Documents