圧電素子とボールねじを用いた機器免震装置用セミアクティブダンパの研究

概要

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In this paper, a new type of semiactive seismic isolation device for machines is proposed. This isolation device is composed of rubber bearings and semiactive dampers consisting of a ball screw, a brake disk, a brake shoe, a flexure hinge and a piezoelectric actuator. The seismic responses of a machine supported with the isolation device, which is installed on the 5th floor in a 7-story building, are calculated using a continuous system simulation language (FACOM SLCS4), and the effective control condition of the semiactive damper is discussed. An experimental semiactive damper and a model of a machine-isolation device system are made, and the resisting force characteristics of the damper and the seismic response of the machine are measured using an electrohydraulic-type shaking table. The experimental results are compared with the calculated ones, and the effect of vibration isolation of the isolation device is confirmed.
一般社団法人日本機械学会の論文
1993-05-25