n the attached structure the static analysis produces consistent results, the buckling analysis does not seem to be correct. To check the constraints and loads I carried out a frequency analysis and it was not correct
I don’t understand where the error is.
Thanks for your help
Well, you have a bunch of nonlinear constraints and interactions (compression-only and contact, even when tied) while the Buckle step is linear. You should use tie constraints instead of contact if you want to perform a linear buckling analysis. But it was mentioned a few months ago here: Bucklin analysis