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 Subsubsection 3.11.1.1: Fix Rigid Constraint Up Subsection 3.11.1: Rigid Constraints Subsubsection 3.11.1.3: Force Rigid Constraint 

3.11.1.2 Prescribe Rigid Constraint

The prescribe rigid constraint prescribes the value of a rigid degree of freedom. It requires the following parameters.
parameters Description
rb The rigid body's material ID. (1)
dof The rigid degree of freedom to prescribe. (2)
value The prescribed value
relative Defines the value as relative or absolute. (3)
Comments:
  1. This is the “id” attribute assigned to the corresponding rigid body material as defined in the Material section.
  2. The values allowed for the dof parameter are: Rx, Ry, Rz, Ru, Rv, Rw. The first three (Rx, Ry, Rz) represent the displacement degrees of freedom. The other three (Ru, Rv, Rw) are the rotational degrees of freedom.
  3. If the relative flag is set, the value is taken relative to the dof value at the start of the step.
The following example prescribes the x-displacement degree of freedom.
<rigid_constraint type="prescribe">
  <rb>1</rb>
  <dof>Rx</dofs>
  <value lc="1">3.14</value>
</rigid_constraint>
 Subsubsection 3.11.1.1: Fix Rigid Constraint Up Subsection 3.11.1: Rigid Constraints Subsubsection 3.11.1.3: Force Rigid Constraint