Applying Sliding Velocities

You can apply a sliding velocity to prescribe either a translational velocity along an axis or a rotational velocity about an axis. Sliding velocities define relative motion in areas where sliding friction is analyzed, such as between the rotating disc and fixed pads in a disc brake assembly.

Before you begin: The model must include at least one translational degree of freedom or one component with a rotational axis.
See Also
About Sliding Velocities
Creating Tabular Amplitudes
In Other Guides
Support Selection
  1. From the Loads section of the action bar, click Sliding Velocity .
  2. Optional: Enter a descriptive Name.
  3. Select the geometry supports in the model.

    You can apply a sliding velocity to one or more faces.

  4. Choose the velocity Type:
    OptionDescription
    Translation Linear velocity along an axis.
    Rotation Angular velocity about an axis.
    The entry fields for the selected type are displayed in the dialog box.
  5. Select an Axis system definition:
    OptionDescription
    Global Aligns the local feature triad with the global coordinate system.
    Implicit Aligns the axis system to the transformed axis system applied on the support.
    Local Aligns the local feature triad with a selected axis system in the model. If you select this axis system, you must also specify it by selecting it in the model or in the tree and specify whether the axis system type is Cartesian or Cylindrical.
    Specify Orients the local feature triad directly. Right-click the feature triad glyph on the model, and select an orientation tool.
  6. For translational velocity, choose the Degree of freedom: X, Y, or Z.
  7. For rotational velocity, select a Line representing the axis of rotation.
  8. Enter the Magnitude of the velocity.
  9. Optional: Enter a Scale factor that is applied to the magnitude in each step.
  10. Select an Amplitude that defines the magnitude during the step.
  11. Click OK.