Abstract
In this paper, we consider a vibration isolation control problem in case that narrow-band frequency disturbances are applied to a system. Though the velocity feedback control with notch filters is helpful for attenuation of the narrow-band disturbances, the parameter tuning of a controller is somewhat difficult because the vibration isolation perfermance is dramatically change according to slight changes of controller parameters. In this paper, we consider the vibration isolation control problem motivated by a rotating machine in space. We make a system model by system identification experiments, and a controller is designed by a frequency shaping method based on the H∞ control. Control experiments were carried out successively, and it is verified that the controller provides the expected performances.
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