磁気減衰器付ボールねじ式防振器の特性

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  • Characteristics of ball screw type dampers with magnetic damping.

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The effects of vibration isolation of a new type of mechanical damper to a simply supported beam and its thermal characteristics are discussed theoretically and experimentally. The damper is composed of a ball screw, a flywheel and a magnetic damper, which uses several pairs of rare-earth permanent magnets and an aluminium or copper disk. The results may be summarized as follows : (1) For larger values of moment of inertia J of the flywheel, the damper approaches the snubber. (2) For smaller values of J, the damper acts as the viscous damper. (3) This damper is effective even under high temperature circumstances of about 100°C.

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