Patent ID: 8818625

Claim:
A damping apparatus for use with a vibrating damping target in order to reduce vibrations of the vibrating damping target, the damping apparatus comprising: an auxiliary mass member; an actuator that has a stator structured to be fixed to the vibration damping target, a movable element, a spring element movably supporting the movable element, a shaft joining the movable element to the auxiliary mass member and being supported by the spring element, and stoppers that limits movable range of the movable element, the actuator vibrates the auxiliary mass member; and a control section that controls a current applied to the actuator in order to suppress the vibrations of the vibration damping target by using a reaction force of the auxiliary mass member when vibrating the auxiliary mass member with the actuator, wherein the control section further includes an amplitude amount control section that performs control for setting an upper limit value of a current range that is applicable to the actuator, so that a vibration amplitude of the auxiliary mass member is limited in order to prevent the movable element from colliding with the stopper in a case of controlling the current applied to the actuator based on an amplitude command value and a frequency command value of vibrations to be generated, when a change amount in the frequency command value exceeds a predetermined value.