Work of Magnetic Dynamic Absorber : Optimum Effect of Vibration Accompanied with Collision

概要

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As a vibrating system (principal mass) attached on a non-damped magnetic dynamic absorber, containing two fixed side magnets and an absorber magnet (floating magnet), is subjected to the action of an external periodic force, the absorber mass (floating magnet) of the magnetic dynamic absorber comes to collide with one side magnet or both side magnets when the system is excited. If the collision occurs periodically, the amplitude of the principal mass will be decreased. In this paper the steady-state vibration of the system accompanied with collision is analized and experimented. The reducing effect in the principal mass developed for the magnetic dynamic absorber is discussed, especially the optimum reducing effect is treated, and the maximum amplitude of the principal mass and others can be obtained in this optimum state.
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