Has anyone had any success using Simulate to check natural frequencies of a part or assembly? I get as far as specifying all part to be rigidly joined (it is a welded mixing shaft assembly), and choosing vibrational analysis - after that I can't work out how to proceed. Generally the help/examples are a bit thin on explanation. Do I have to set this up as a dynamic simulation? - I'd have expected not, just for vibration. Any tips most welcome, I'm getting quite frustrated.