I am doing an FEA simulation of a Ball in Cone application. I am able to mesh and analyze in a Static analysis by creating a slight interference between the parts to estimate the contact region between the ball and cone. In the Connections properties, I select for Global Contact "No Penetration" and this seems to be the selection that allows the mesh to run, with interference, and results in what looks like a reasonable Static Analysis. The Problem is that "No Penetration" is NOT an option in the Global Contact menu in the Frequency Analysis study type. Therefore, I cannot analyze the same model having contact region interference to do a frequency analysis. Can anyone suggest how to best handle a desired interference in the Frequency Analysis? Thanks.