Applying Forces

You can use a force to apply a translational load in a single direction across an area.

See Also
About Forces
In Other Guides
Support Selection
Feature Manager
  1. From the Loads section of the action bar, click Force .
  2. Optional: Enter a descriptive Name.
  3. Select the geometry supports in the model.

    A force can be applied to one or more points or faces. If you select a model face, the force is distributed evenly across the surface. You can also select a coupling connection, rigid body, or rigid surface; the force is applied to the reference point for the feature.

  4. Enter the magnitude component for each direction of the local feature triad (Force X, Force Y, and Force Z).

    For a cylindrical local axis system, the X-, Y- and Z-components are the R-, θ -, and Z-coordinates, respectively.

  5. Select an axis system and an axis.
    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 Allows you to orient the local feature triad directly. Right-click the feature triad glyph on the model to orient the local feature triad.
    Implicit Aligns the axis system to the transformed axis system applied on the support.
  6. Optional: Enter a Scale factor.
    A scale factor is a multiplier used to scale the magnitude values.
  7. Optional: Specify an Amplitude and Phase angle.
    The amplitude curve defines the magnitude of the feature during the step. The phase angle for the amplitude curve determines the real (in-phase) and imaginary (out-of-phase) parts of the magnitude. A phase angle of 0º indicates a value with no imaginary component.
    Note: Phase angles are available only for a harmonic response simulation step.
  8. For random vibration steps, specify the PSD (power spectral density profile) that describes the frequency profile of the real and imaginary components of the force loads.
    The Correlation field indicates the number of other force loads that share the same PSD profile.
  9. Click OK.