From FreeCAD Documentation
- There are several ways to invoke the command:
- Press the Centrifugal load button.
- Select the Model → Mechanical boundary conditions and loads → Centrifugal load option from the menu.
- Specify the rotation frequency in Hz.
- Click on Add in Geometry reference selector for a Solid window and select a solid to which the load will be applied in the 3D view.
- Click on Add in Geometry reference selector for a Edge window and select an edge about which the rotation will occur in the 3D view.