Overview: Rebuild (or Reuse) the cantilever beam created from the previous Modal Analysis Project, to fix the far face, and run a modal analysis.
Note: Only the first mode needs to be calculated for this exercise.
Pro Tip: Rename the dimensions of the rib so they will be easy to reference later (edit the properties of the dimension).
Next: Using the image to the left as a guide, create a new standard design study that modifies the height of the rib to 8″.
Note: Notice what happens in the background.
Hint: Utilize the ‘copy study’ function to quickly create multiple new design studies.
Try:
Animate the mode shape and make note of the frequency of the first mode. Be sure to view the mesh in the results fringe plots
Create three more design studies with the rib heights set to at 12″, 16″, and 20″
Create a few more studies that update the other dimensions of the model. In which situations would this save you the most time? What kind of CAD model would benefit the most from this kind of analysis?
