Learning Forum

[Zoi Stavrothanasi]

The errors you're encountering are related to the specific requirements of RBD analysis in Ansys.

In RBD, only rigid bodies and flexible bodies used in Condensed Parts are allowed. This is why you're seeing the error when Condensed Parts are not defined. When you assign a Condensed Part to the Belt, you're encountering another limitation of RBD analysis: contact cannot be applied between a condensed part and any other part.

As for the error about 'General' interfaces, it seems that this type of interface is not allowed when generating files for RBD analyses. You can apply loading conditions only to the interfaces of Condensed Parts. Remote Displacements and Remote Forces applied to the Condensed Parts using geometry selection, must match the scoping of an interface of the Condensed Part, or be applied directly via Remote Point selection. Inertial loads are automatically applied on all Condensed Parts by the Rigid Dynamics Solver.

Please refer to the ''Belt and Pulley Assembly'' post for further guidance on how to set up your simulation.