Tutorial: Simulate wind velocity on a sign post

Open FE_street_sign.asm.

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

Expose the mid-surface for the sign.

1. In the graphics window, in Assembly PathFinder, right-click sign.psm and select Show / Hide Component....

2. In the Show / Hide Component dialog box, select the following:

   1. Surfaces=On

   2. Design Body=Off

Create a study.

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

   

2. In the Create Study dialog box, select the following:

   1. Study type=Linear Static

   2. Mesh type=Mixed and General Bodies

   

   The Select Occurrences command is now active.

3. At the prompt, Select one or more occurrences and/or mid-surfaces and/or united bodies to include in the study, select both the mid-surface of the sign and the post.

   

   Note:

   You could also select the sign and sign_post from PathFinder.

4. Click Accept on the command bar.

Define a 0.479 kPa (10 lb/in₂) pressure on the sign. This pressure value approximates a wind velocity of 127 kph (79 mph).

1. Zoom in to view the sign.

   

2. Select Simulation tab→Structural Loads group→Pressure.

   

3. Select the front face of the sign and type 0.479 kPa in the value box. Press Enter.

   

4. Click to finish and accept the pressure.

   

   Note:

   You can change the size and spacing of the load, constraint, and assembly connector symbols using the Graphic Symbol Size dialog box. To learn how, see Modify FEA symbol properties.

Define a fixed constraint near the bottom of the sign post.

1. Use the Zoom Area command around the bottom of the post.

   

2. Select Simulation tab→Constraints group→Fixed, and then drag a box around the bottom faces of the post.

   

3. Right-click to accept the constraint.

   

Define assembly connectors between the post and the sign.

1. Select Simulation tab→Connectors group→Auto.

   

   The Auto command bar is displayed.

2. Select Glue as the Connector type.

3. Click Single connection per face pair .

4. Change the Search distance to 2 mm.

5. Click Select All to select both the post and sign.

   

6. Click Accept on the command bar.

   The connector pair information is displayed in the Results dialog box.

7. In the Results dialog box, select the connector entry (1: sign_post.par1,sign.psm1), and then click the Create Connectors button.

   In this example, only one connector pair is listed.

   

In the Simulation pane, you can see that Connector 1 was created

Now turn off the Loads and Constraints.

In the graphics window, zoom in on the top and then the bottom of the assembly.

Observe the following:

• On sign.psm at the top, both connector target symbols (red) and connector source symbols (blue) are shown where the glue connectors were created between the two parts.

  

• At the bottom of sign_post.par, only the red connector target symbols are shown.

  

Mesh and solve the study.

1. Turn off the Connectors node in the Simulation pane.

2. Select the Mesh command. Choose Mesh & Solve.

The results are displayed in the Simulation Results environment.

Save and close this file.