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January 4, 2024 at 12:45 pm
Antony CHIDIAC
Subscriber

Thank you Dave for your answer, 

I'm not sure I understand the option number 1 you mentioned, we already know that in reality the pipe will be in contact with the flange at some point, so contact is reasonable. you mean runing cases with contact of fanges and pipes and no contact, but what's the purpose behind it? if they're not in contact in a modal analysis they will never enter contact and if they are they will be considered as a bonded body. and also what do you mean by "run sensivities on mass and flexibility at the boundary conditions"?

Our goal is to check the impact of this gap on the modal frquencies so I think we need to do the dynamic analysis, do you have an idea what method should be used to run it?

Thank youÂ