Solid Rotor, Fixed Frame

The Solid Rotor, Fixed Frame uses the same approach as the Solid Rotor interface. However, the governing equations for this interface are described in a space-fixed frame. Acceleration forces due to rotation of the rotor are automatically taken into account. As opposed to Solid Rotor, the results in this interface are obtained in a space-fixed frame. As a result, the interpretation of the results in this interface is more straightforward.

The Solid Rotor, Fixed Frame interface assumes that the rotor is axially symmetric. For a nonaxially symmetric rotor like a crankshaft, the governing equations are not valid. Bearings and foundations supporting the rotor, however, can be anisotropic.