Hi, I need to help related to one problem. I do static structural analysis for disc brake. I drew disc and pad together. I transferred to ANYS program, confirmed geometry and I selected model section. I made mesh and gave pressure value in the two pad. 

I want to give rotational velocity for disc. But I could not make this. I selected disc and entered rotatinaol velocity value but it did not be. In additon, I used revolute in the connection section in order to try another way and later I tried to give joint load. When I selected moment or rotational, this program confirmed. When I selected rotational velocity, it did not confirm . What could be problem?