How to setup a optistruct free free modal analysis in Hyperworks 2022-SOLVED

Carlton Matthew_20281

I'm trying to setup a Free-Free modal analysis in Optistruct.
I've tried setting the lowest frequency to 1e-9 Hz and highest to 1Hz, and requested 1st 20 modes, but the analysis produces no output.

The model was setup with the SPC entry undefined.

 tried an empty SPC set but the analysis fails Error #23, Case control data SPC missing

I've attached the .fem file.

almeidaaap

Hi, I would recommend watch this video
https://www.youtube.com/watch?v=_MqmIz2T-PY

But if you are running a free-free modal, I recommend just setting the 1st 20 modes. I will attach an example that I did with a simple tube.

Thanks,

Arthur