Applying Translational Velocities to Axisymmetric Models

You can apply a translational velocity to prescribe a linear velocity in a specified direction for an axisymmetric model.

See Also
About Translational Velocities
Creating Tabular Amplitudes
In Other Guides
Support Selection
  1. From the Loads section of the action bar, click Applied Translational Velocity .
  2. Optional: Enter a descriptive Name.
  3. Select the geometry supports in the model.

    A translational velocity can be applied to one or more points, edges, or faces. You can also select a coupling connection, rigid body, or rigid surface; the velocity is applied to the reference point for the feature.

    You can apply the translational velocity to a secondary base by selecting Sim feature as the type of support, then selecting the appropriate displacement restraint from the window that appears.

  4. Enter the Velocity magnitude.
  5. Select a DOF representing the direction of the velocity within the selected axis system.
  6. Select one of the following as the Axis system definition:
    OptionDescription
    Global Aligns the local feature triad with the global coordinate system.
    Local Aligns the local feature triad with a selected axis system in the model. If you select this axis system, you must also specify whether the axis system 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.
    Implicit Aligns the axis system to the transformed axis system applied on the support.
  7. Optional: Enter a Scale factor that is applied to the magnitude in each step.
  8. Select an Amplitude that defines the magnitude during the step.
  9. Optional: For harmonic response steps, specify the Phase angle for the amplitude curve. The phase angle determine the real (in-phase) and imaginary (out-of-phase) parts of the magnitude. A phase angle of 0ยบ indicates a completely real (non-imaginary) value.
  10. Click OK.