Tutorial: Simulate stresses on a basketball hoop

Open FE_Basketball.asm.

Simulation models are delivered in the \Program Files\UDS\QY CAD 2022\Training\Simulation folder.

Create an analysis study:

1. Select the Simulation tab→Study group→New Study command.

   

2. Choose the Linear Static study type and Tetrahedral mesh type, and then click OK.

   The Define command in the Geometry group is active.

   

3. Select the backboard as well as the hoop. Click Accept on the command bar.

   

4. Display the Simulation tab to see the new study. Expand the Geometry node to show the parts you selected.

   

Define a force on the rim:

1. Select Simulation tab→Structural Loads group→Force.

   

2. Select the toroidal face comprising the rim.

   

3. You may need to reorient the load arrow. Select the steering wheel origin.

   

4. Move the origin to the top face of the hoop support so the major axis points up.

   

5. Select the Flip button on the Loads command bar to flip the load direction.

6. Type 1001 N in the value box. This is equal to a 225 pound force load.

   

7. Right-click to accept, and then click to finish.

The force load is placed.

Add a fixed constraint to the backboard:

1. Rotate the view to see the back side of the backboard.

   

2. Select Simulation tab→Constraints group→Fixed, and select the rear face.

   

3. Right-click to accept, and then click to finish.

Define assembly connectors between the rim and the backboard.

1. Rotate the model so you can see the rim and front of the backboard.

2. Choose the Simulation tab→Connectors group→Manual command .

   The Assembly Connector command bar is displayed.

3. Select the front face of the backboard as the target face.

   

4. Zoom in around the rim and select the rear face of the rim support as a source face. Use QuickPick if necessary.

   Note:

   Ensure you select the rear face of the support, not the face on the inside of the thin wall portion of the support.

   

5. Accept the source face selection.

6. Zoom in around the rim and backboard area to see the connector symbols.

   Also notice the Simulation tree-view pane has been updated with the connector.

   

   

Mesh the assembly:

1. Select the Mesh command, and on the Mesh command bar, use the slider to define a subjective mesh size of 3.

2. Click the Mesh button.

   The entire assembly is meshed.

   

Solve the study:

1. Select the Simulation tab→Solve group→Solve command.

   Note:

   If a fatal Nastran error message is displayed instead of a solution, change this setting in the Mesh Options dialog box, and then click Solve again:

   1. Reopen the Mesh dialog box and click the Options button.

   2. On the Mesh Sizing page, in the Geometry Preparation Options section, clear the check box, Prepare geometry for meshing.

   After a few moments, the results are displayed in the Simulation Results environment.

   

2. Turn off the display of loads, constraints, and connectors in the Simulation pane.

   

3. Zoom in on the rim to view the high-stress area.

   

Locate the maximum stress:

1. Select Color Bar tab→Show group→Max Marker.

   

   

   Tip:

   You can change the text color and text size of the color bar using options in the Color Bar tab→Font group.

Close this file.