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Defining Centrifugal Loads

You can define a centrifugal load to a part or an assembly in static, frequency, buckling, or nonlinear studies.

To define centrifugal load to a model:

  1. In the Simulation study tree, right-click the External Loads icon and select Centrifugal.
  2. In the PropertyManager, select an axis, edge, or cylindrical face for direction PM_face.gif.
  3. Under Centrifugal Force, do the following:
    1. Select the Units PM_units.gif for the angular velocity or acceleration.
    2. Type a value for the Angular Velocity PM_angular_velocity.gif. To reverse the direction of the angular velocity, select Reverse direction.
    3. Type a value for the Angular Acceleration PM_angular_acceleration.gif. To reverse the direction of the angular acceleration, select Reverse direction.
  4. In nonlinear studies, you can define time-dependent centrifugal forces by associating them with a time curve. Under Variation with Time select:
    • Linear. To use a default linear time curve which passes through the points (0,0) and (tend, A). Where A is the value of the angular velocity or angular acceleration specified in the Centrifugal Force box and tend is the End time specified on the Solution tab of the Nonlinear dialog box.
    • Curve. To use a user-defined time curve. Click Edit to define or import a time curve. The angular velocity/angular acceleration is calculated at any time by multiplying the value specified above by the Y value of the time curve. Click View on the PropertyManager to display the actual time-dependent centrifugal force components.
  5. Click PM_OK.gif.

    The centrifugal load symbol is shown at the center of gravity of the model. The model spins about the specified axis.

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