Rigid Body Element RBE2
The interface supports 2 methods for generating RBE2 elements.
Automatic specification of independent grid point
If you choose this method, the user needs to create BAR elements,
where the 1. node of the BAR element is on the independent grid point and
the 2. node on the dependent grid point. The translator creates a RBE2 element
of all BAR elements within this family with the same 1. node. This method
allows it to define multiple RBE2 elements for the same family. It can
only be applied on edge families.
Manually specification of independent grid point
If you choose this method, the user defined node id is taken as independent
grid point and all nodes of the family are taken as dependent grid points.
This method can be applied to surface and edge families.