I'm looking for some advice on the FEA | Calculate FEA Modes screen.
This has three options to fill out:
-Number of modes
-Rigid body offset
The first is pretty obvious, the second one I can guess at, but the last one has got me baffled.
I fill this out without a real sense of what it does, except 'if it doesn't work, make the number bigger'.
What does the rigid body offset do?
When I fill in 20Hz some of the solutions are still lower than 20Hz. Does this directly affect the modes that are found?
Thanks for any insights you can offer!