Method and device for noise damping

摘要

The invention is directed to damping vibration, and audible noise in particular, using a hybrid actuator with active and passive damping components. In one aspect of the invention, the active component may be used to damp low frequency vibrations while the passive component is used to damp higher frequency vibrations. Also provided is a procedure for optimizing the size of each component with a minimal hybrid actuator mass. The hybrid actuator is controlled by an optimized control system.