MAE 244 : Dynamics and Strength Laboratory Fall 2005

Tutorial Material for

Pro/ENGINEER Wildfire 2.0 With Integrated Pro/MECHANICA

Tutorial 2: Modeling Cantilever Beam and Performing Finite Element Analysis using Pro/MECHANICA

Chuanyu Feng, PhD chuanyufeng@yahoo.com

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 2

Modeling Cantilever Beam using Extrusion

Introduction

In this session, we will first make a cantilever beam using Extrusion feature. Then use the integrated Pro/MECHANICA to perform the finite element analysis of this cantilever beam.

Create a Cantilever Beam

1. Start Pro/E Wildfire. 2. Click menu: File New. A dialog will pop up as shown in Figure 1. 3. Give a new name and/or description if desired. 4. Click OK button and Pro/E will create an empty solid part.

Figure 1. Create a Cantilever Beam

5. Select the “Front” Reference plan.

6. Then click the Sketch Tool . Information will be filled in the Sketch Window.

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 3

7. Click Sketch button in Figure 3. 8. Now Pro/E is in the Sketch mode. This will allow you to sketch in the XY plane

and extrude in the Z direction. 9. You can close the References window by click close button.

Figure 2. Start a sketch: Options

10. You can close the References window by click close button. 11. You can setup the Sketch options by click menu Sketch Options

12. Choose the Rectangle tool to create a rectangle (Figure 3).

Figure 3. Draw a rectangle

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 4

13. Click or Middle mouse button to De-select the Rectangle tool. 14. Double click the dimension; change it to 2in width by 4in height. Press Enter key on

the keyboard to finish the input. 15. Click to finish the sketching

Figure 4. Change dimension

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 5

Figure 5. Rotated Sketch

16. Rotate the sketch. So you can see how it was put on the reference plane.

17. Select Sketch 1 in the model tree, then Click the Extrude tool

1. Select the sketch

2. Use Extrude tool

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 6

Figure 6. Preview, Input 30

18. Input 30, Press “Enter” key on the keyboard. Pro/E will show updated preview

19. Click middle mouse button or click the Green check mark to finish the part.

20. Save the part by click File Save, or click the disk icon in the toolbar region. Click OK button.

2. Input 30 instead of using a default value

1. You will see a preview with the default extrusion depth value

3. This is the updated view

4. Click the Checkmark button

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 7

FEA using Pro/MECHANICA

Pro/MECHANICA has two working mode, standalone and integrated. In this part, you will use the integrated Pro/MECHANICA to analyze the Cantilever Beam.

For a general analysis, it takes 3 steps

1. Assign material information 2. Setup load and constraint boundary conditions 3. Run the analysis and view the results

Change working mode to Pro/MECHANICA

1. Click menu Applications Mechanica to Enter Pro/MECHANICA working mode. 2. Review the unit information, Click Continue button to proceed (Figure 7)

Figure 7. Unit information

3. In the pop-up dialoge Model Type, choose Structure if it is not shown. 4. Make sure FEM Mode is UN-checked. This option tells Pro/MECHANICA uses

its own solver. If you check the FEM Mode, it will generate FEA input file for external solvers, such as ANSYS.

5. Click OK to proceed.

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 8

Figure 8. Choose the working model type

Create a new material and assign it to the part

1. Show the Mechanica Objects and Actions tool bar on the right chest region.

Figure 9. Right toolchest configuration

1. Put mouse in the right toolchest region, 2. Right click the show up the Configuration menu

3. Make sure Mechanica Objects and Actions are checked. These information are accessable from Main Menu: Inserts and Analysis

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 9

2. Select Main menu: Properties Materials 3. Click New button on the pop-up Materials dialog 4. Enter corresponding values as shown in Figure 11. Click Ok to finish material

definition.

Figure 10. Materials

Figure 11. Material definition

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 10

5. The defined material appears on the “Materials in Model” List. (Selected) 6. Click Assign button, 7. Select Part from the list menu. Pro/E will hide the materials dialog and let you

choose the part for the material. 8. Move mouse over the cantilever beam, it will become highlighted. Click on it. 9. Click middle mouse button to confirm the selection. Or Click the OK button

in the Select window. 10. close the materials window 11. Save the file

Figure 12

Middle mouse button or click OK here to confirm the selection

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 11

Apply Boundary Conditions: Constraints and Loads

Boundary conditions including loads and constraints are applied in this section. You can use the shortcut on the toolbar or use corresponding menu.

Displacement boundary

1. Click main menu: Insert Displacement Constraint … 2. Click the surface on one end of the cantilever beam 3. Click mouse middle button to confirm the selection ( or click OK button in the

select window). Then the two small windows at the bottom will close.

Figure 13 Apply constraints

These 3 new windows will pop up for inputting corresponding information

Click this end to select. Click middle mouse button or OK button

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 12

Figure 14. Setup constraint

4. Input Fixed_End as the name of the constraint, and then click OK button to finis the setup.

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 13

Apply Load

5. Rotate the cantilever beam, so that the other end is facing you. 6. Click main menu: Insert Force/Moment Load… 7. Click the surface on end of the cantilever beam ( Opposite to the one has

displacement boundary condition) 8. Click mouse middle button to confirm the selection ( or click OK button in the

select window). Then the two small windows at the bottom will close. 9. In the Force/Moment Load window: Change the name to

Applied_Load_in_Y, 10. Input -100 in the Force Y component 11. Click Ok to confirm it.

Figure 15. Load setup

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 14

Figure 16. Cantilever Beam with Load and displacement Boundary conditions

12. Now the Boundary conditions are all setup. And we are ready to do the analysis.

You can review and edit this information on Boundary conditions

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 15

Figure 17.

13. Click main menu: Analysis Mechanical Analysis/Studies … 14. It will bring the Analysis and Design Studies window 15. Click menu from the Analysis and Design studies window: File New Static

…

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 16

Figure 18.

16. It will bring the Static Analysis Definition window 17. Make sure Constrains and Loads set are highlighted. 18. Click OK to proceed

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 17

Figure 19. Run analysis

19. Click menu: Run Start in the Analysis and Design Studies window 20. click Yes on the Question window for error detection.

21. Click the displace status button to see the status of analysis

Displace status

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 18

Figure 20. Run status

22. Analysis will be done once you see the Run Completed. Close the window when it is done.

23. click the main menu: Analysis Results … ( button ), Pro/E will start a new window. Click menu: Insert Results Window…, you will see a new window popped up, Result Window Definition.

24. If you click the button directly in the window show in Figure 19, you will automatically pop up the Result Window Definition with opened result (Figure 23).

Figure 21

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 19

25. Click the button 26. chose Analysis1, click Open

Figure 22. Open the result file

27. Result Window Definition is extended, more options are shown. 28. Choose ZZ component in Quantity page

Figure 23. Setup options

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 20

29. Select Display Options page, setup as shown in the following figure. 30. Click OK and Show to display the stress distribution

Figure 24. Setup options

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 21

Figure 25. Results

31. Select menu: Edit Result Window (or click ) to edit the result window.

Export Results as an Image File

This part will go through the steps in exporting the results from Pro/MECHANICA to image files. You can save in different file format, but for reasonable quality with smaller file size, JPG file is a good choice. Then you can insert it into popular word processor, such as Microsoft WORD.

1. Click menu: File Export Image…

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 22

Figure 26. Export an image

Figure 27. Choose JPEG from Output Format

2. Change output format to JPEG ( last choice) 3. check the To File option, Input the File name or Use the Browse button to

navigate to a desired folder and input the file name. (Figure 28) 4. Now it is ready to use the JPG file anywhere you want.

MAE 244 : Dynamics / Strength Laboratory Fall 2005

Chuanyu “tony” Feng 23

Figure 28. Output to image file

5. Close the Results window by click menu: File Exit Results or click the “X” on the top right corner of the window.