No, that menu just automates the creation of the distributed coupling element. Creating it through the model tree is also acceptable, just takes a bit more input. The only suggestion I would give is to avoid structural coupling.
If you're using Hypermesh, the easiest way to create a distributing coupling element is:
1D > rbe3
dependent > calculate node (will determine the approximate area centroid)
independent > select your nodes
dependent dofs > keep all selected (unless you don't want one of the DOF coupled)
weight...
If you perform a modal analysis following a general static analysis step, the initial stress and load stiffness effects will only be accounted for if geometric nonlinearity was accounted for in the preceding step. If geometric nonlinearity is not accounted for, the stiffness matrix is never...
A distributing coupling is an interpolation element - it interpolates the average motion of the cloud nodes to the reference node. It is equivalent to an RBE3 if you are familiar with Nastran.
Running a modal analysis of a nonlinear model will linearize the model. If you have nonlinear elements or material definitions, it will use the current configuration as the reference configuration for the modal analysis. If your nonlinear connectors are preloaded before the modal analysis, they...
