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Let's say there is a disk suspended in space spinning at high speeds. I want to determine the eq. stress profile from centrifugal stresses. In Ansys, I've already applied a rotational velocity. however I need boundaries. What boundaries would work in this case? I've tried a lot of different boundaries, and it's not working.

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  • $\begingroup$ You want to design a disk as a flying saucer? Should it not taper down at max radius? $\endgroup$ Commented Sep 20 at 19:24

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Locate the node on the spin axis on the lower surface. Constrain it in x y z. Locate the road on the upper surface on the spin axis. Constrain it in x and y only.

The UFO will now spin but won't translate.

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