A review of development and implementation of an active nonlinear vibration absorber

摘要

We present an account of an implementation of an active nonlinear vibration absorber that we have developed. The control technique exploits the saturation phenomenon that is known to occur in quadratically-coupled multi-degree-of-freedom systems subjected to primary excitation and possessing a two-to-one internal resonance. The technique Is based on introducing an absorber and coupling it with the structure through a sensor and an actuator, where the feedback and control signals are quadratic.