Hi guys!

I've done a flow analysis on a propeller and imported the results in Simulation to see the stress distribution.
I've added a centrifugal force with angular velocity same as in the flow simulation, added material and meshed though i'm not sure how to setup the requested fixture to the model?

I've tried using a random diameter circle in the middle of the hub and run the results, to receive very high and unlikely values. Changing the diameter of the fixture will probably also  change the results so I guess this is not the way.

Thanks for the help!