Define the Damping

1. In the tree view, right-click on Damping 1 under Subcases and choose Edit.

   

2. Select the Structural Damping checkbox. Type in 10 for the Damping Value and 7.603 for the Dominant Frequency.

   

   A modal analysis was performed to determine the dominant frequency for this model. This is typically the first natural frequency.

3. Click OK.