Boundary conditions on rigid bodies

[SteveyB]

I am trying to do a simple analysis in ansys (static structural) with a half spherical body pressing into a plate. The half spherical body is set to rigid in the geometry tab. When I come to put a fixed support on the circular face of the rigid body all I get is a question mark next to the fixed support constraint implying that there is an issue with the boundary condition. Are you not able to apply boundary conditions in this way to rigid bodies? If not how do you deal with rigid bodies in static analyses?

 

[0rel]

You can define a remote displacement with all DOF blocked, since you have a rigid body, it is not meshed and thus you can't apply standard BC's

 

[SteveyB]

What if you wanted to apply a force to a rigid body, is this not possible?

 

[0rel]

In my opinion, it would be useless in a static analysis