Coupling constraints

The surface-based coupling constraint:

  • couples the motion of a collection of nodes on a surface to the motion of a reference node;

  • is of type kinematic when the group of nodes is coupled to the rigid body motion defined by the reference node;

  • is of type distributing when the group of nodes can be constrained to the rigid body motion defined by a reference node in an average sense by allowing control over the transmission of forces through weight factors specified at the coupling nodes;

  • automatically selects the coupling nodes located on a surface lying within a region of influence;

  • can be used with two- or three-dimensional stress/displacement elements; and

  • can be used in geometrically linear and nonlinear analysis.

The following topics are discussed:

Related Topics
In Other Guides
About surfaces
*COUPLING
*KINEMATIC
*DISTRIBUTING
Defining coupling constraints

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