1. Click the Rotation icon
.
The Rotation Force dialog box is displayed.
![](images/aaPanelLoadForceRotation.gif)
2. You can change the identifier of the Rotation Force by editing the
Name field.
3. Select the geometry support (Supports
field): the part on which the variable acceleration field is to be applied.
Any selectable geometry is
highlighted when you pass the cursor over it.
![](images/aaImageLoadForceRotation02.gif)
You can select several supports in
sequence, to apply the Rotation Force to all supports
simultaneously.
4. Select an existing line or a construction axis to specify the
Rotation Axis.
Any selectable geometry is
highlighted when you pass the cursor over it.
![](images/aaImageLoadForceRotation.gif)
To select a User-defined Axis
system, you must activate an existing Axis by clicking it in the
features tree. Its name will then be
automatically displayed in the Axis Name field.
Symbols representing the Rotation Force are displayed on the
support geometry to visualize the acceleration field.
5. Enter a value for the magnitude of the Angular Velocity about the rotation axis.
For example, 8turn_mn.
6. Enter a value for the magnitude of the Angular Acceleration
about
the rotation axis. For example, 70rad_s2.
7. Click OK in the Rotation Force dialog box to
create the Rotation Force.
A Rotation Force object appears in the specification tree under the active
Loads objects set.
![](images/6treeloadforcedensityline.gif)