Revolute joint definition

@REVOLUTE_JOINT_DEFINITION {
@REVOLUTE_JOINT_NAME {RvjName} {
@EDGE_NAME {EdgeName}
@RELATIVE_ROTATION_NAME {RvrName}
@GRAPHICAL_PARAMETERS_NAME {GrfParamName}
@COMMENTS {CommentText}
}
}

NOTES

  1. A revolute joint is a constraint element that allows the relative rotation of two bodies about a specific body attached axis, see fig. 1. The revolute joint 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 revolute joint.
  3. The geometry of the revolute joint is inherited from edge, EdgeName, which must have an associated triad, TriadName. The relative rotation of the two bodies is allowed along the third axis of this triad only.
  4. The relative rotation element, RvrName, gives access to the relative rotation, Φ, at the revolute joint.
  5. 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 revolute joint during the visualization phase of the analysis can be controlled by associating graphical parameters, GrfParamName, to the element.
  2. The following representations are valid for revolute joints: RprType = SYMBOL or TRIAD. The SYMBOL representation depicts the revolute joint as a symbol centered at the point that defined the element. The TRIAD representation depicts the revolute 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 revolute joints.
  3. It is possible to attach comments to the definition of the object; these comments have no effect on its definition.

Sensors

  1. Sensors can be defined to extract information about revolute joints. The following SensorType and associated FrameName specifications are allowed for revolute joints: ACCELERATIONS_0, ACCELERATIONS_1, DISPLACEMENTS_0, DISPLACEMENTS_1, CONFIGURATION_0, CONFIGURATION_1, VELOCITIES_0, and VELOCITIES_1. (Default value: DISPLACEMENTS_0).
  2. No u value or v value are accepted for revolute joints.