Erik Kostson
Ansys Employee

Hi

As you found out it is not possible to do that (rigid part+remote disp.+cyl. system and radial displ.).

No bodies are fully/100% rigid, especially for contact situations they should not be –  perhaps for rigid dynamics rigid might be ok in certain cases – so set that part to flexible.

Then the way to do what you want, is as we said to have a normal flexible body, and apply a radial displacement with a user defined cylindrical. sys. (located at centre line of pipe), and a displacement BC with the displ. in X (radial direction for a cylindrical system with Z along pipe centre line ).

All the best

Erik

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