A damper is a type of load that you create to simulate real world forces on your mechanism. The force generated by the damper removes energy from a moving mechanism and dampens its motion. For example, you can use the damper to represent the viscous force that slows down the movement of a piston pushing fluid into a cylinder. The damper force is always proportional to the velocity magnitude of the entity on which you are applying the damper, and it acts in the opposite direction to movement.

A damper created in Mechanism Dynamics is an assembly feature. Its values are valid parameters. You can edit a damper in both Assembly and Mechanism Dynamics. An existing damper will not appear in the Assembly Model Tree until the model is opened in Mechanism Dynamics.