The Mechanism Motor element tree enables you to add servo and force motors.

Use servo motors to impose a particular motion on a mechanism. Servo motors cause a specific type of motion to occur between two bodies in a single degree of freedom. Add servo motors to your model to prepare it for analysis.

Use force motors to impose a particular load on a mechanism. A force motor causes motion by applying a force in a single degree of freedom along a translational, rotational, or slot axis.