The Rigid Motion Suppression node adds constraints required to suppress rigid body modes. The constraints are selected so that there will be no reaction forces if the external loads are self-equilibrating.
If you need to constrain several objects that are not physically connected, you must add as many Rigid Motion Suppression nodes as there are disconnected objects.
Rigid Motion Suppression is available for 3D, 2D, and 2D axisymmetry.
By default the selectable input is Automatic, which corresponds to using all points in the domain. When selecting
From selection input, a new
Point Selection section is shown where specific points can be selected. For 3D at least three points are expected, and for 2D at least two points are expected.
