cbush (rigid)
Creates bush (CBUSH) elements between shell and/or solid elements in order to connect them using rigid (RBE3) elements. The bush element nodes will project and touch the shell and/or solid element faces. Unless defined differently, the bushs are assigned a default property, and are organized into a component with the same name base as the property. If no specific bush coordinate system is defined, the bush elements are defined with a vector x1, x2, and x3 normal to it.
The default property parameters can be changed in the files below this path: ..\Altair\2021.1\hwdesktop\hm\scripts\connectors\Bush_Rigid\nastran_optistruct\.