@EDGE_NAME {EdgeName}
@COMMENTS {CommentText}


  1. A constant velocity joint is a constraint element that constrains the components of angular velocity along material directions of two bodies to be identical, as shown in fig. 1. The constant velocity joint is a nonholonomic constraint element that is associated with an edge, EdgeName. Vertices Vertex0Name and Vertex1Name are associated with this edge. Find more information about: the representation of multibody systems, and the formulation of constraints in multibody systems.
  2. Figure 1. Configuration of a constant velocity joint.
  3. The geometry of the constant velocity joint is inherited from edge, EdgeName, which must have two associated triads, Triad0Name and Triad1Name. The material axes of the bodies are along the third axes of triads Triad0Name and Triad1Name, which are attached to body Vertex0 and Vertex1, respectively.
  4. It is possible to attach comments to the definition of the object; these comments have no effect on its definition.

Graphical parameters

  1. The appearance of the constant velocity joint during the visualization phase of the analysis can be controlled by associating visualization parameters, VizPrmName, to the element.
  2. The following representations are valid for constant velocity joints: RprType = SYMBOL or TRIAD. The SYMBOL representation depicts the constant velocity joint as a symbol centered at the point that defined the element. The TRIAD representation depicts the constant velocity joint as two triads sharing a common origin and oriented according to the configuration of the two bodies connected to the joint. Default value: SYMBOL. No vector fields can be associated with constant velocity joints.


  1. Sensors can be defined to extract information about constant velocity joints. The following SensorType and associated FrameName specifications are allowed for constant velocity joints: ACCELERATIONS_0, ACCELERATIONS_1, DISPLACEMENTS_0, DISPLACEMENTS_1, POSITIONS_0, POSITIONS_1, VELOCITIES_0, and VELOCITIES_1. (Default value: DISPLACEMENTS).
  2. No u value or v value are accepted for constant velocity joints.