Hi,

In my model, I have a cylinder on which I apply some temperature loads, some force loads and a torque. I run the study and there are a few things I don't understand.

My cylinder relays on 4 small cylinders that can rotate.

I don't understand why I obtain these results: 

I thoought it could be because it is rotating, but all of them are rotating and there is only one which is doing that.

Also, the thermal expansion that produces is not what it should be.

If I do not insert any friction coefficient, the contact between two faces is as if it was "slippery"?

Thanks in advance