A little bit of context : I work as a drafter for a titanium foundry and was asked to check the design of a part (impeller). We already made the part and sent it to the client, he tested it and it failed ; some blades are destroyed upon reaching 3000 rpm.
I have no info on the fluid it is supposed to move, I just need to simulate the rotation ("empty') and see whether the blades "stay in shape" or not (sorry can't explain better in English).
Do i need to use motion study or static simulation ?
I tried both but I can't use them properly.
There is in the Help > Flow Simulation Help > Tutorial an example on how to set up a Rotating Impeller.
Also there are more tips and details about this kind of problem in the "Solving Engineeering Problems" document and "Technical Reference" document as well. These kind of simulations does not deform the shape, but they find the fluid pressure distribution on the impeller blades.
http://mecanica.eafit.edu.co/~sorrego/Tutoriales_Solid_Flow_Sim09/solvingengineeringproblems.pdf
https://d2t1xqejof9utc.cloudfront.net/files/18565/SW_CFD_technical_reference.pdf
But I would start first with a hand calculation of the centrifugal forces of the impeller blades at that rotation speed.
And then you can make a quick static simulation in Simulation software using a static study. In your case you should add fluid pressure and centrifugal forces in the static study.
SOLIDWORKS Flow Simulation – Stress from Fluid Pressure - YouTube