Control Strategy Investigation on Rotor-Active Magnetic Dynamic Absorber System Subject to Base Vibration

The base vibration and the impact load not only have a great effect on the dynamic behavior of a rotor system equipped with active magnetic dynamic absorber(AMDA), but also possibly make the AMDA fail. The control system of a rotor-AMDA subject to base vibration was designed and the construction process of output regulation control system was put forward. It is shown that the controller designed can reduce the response of the rotor subject to force excitation and base vibration excitation at the same time to very low level at several harmonic frequencies, therefore a multi-frequency dynamic absorber is realized. In addition, the control method advanced is hopefully applied to the control of rotor faults.