637 ピン支持変位拡大機構を用いた粘弾性ダンパの研究(ダンパ1)(OS.10 : ダンピング)

概要

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In the previous paper, the authors proposed two types of magnetic dampers using rare-earth magnets and a lever-type displacement magnifying mechanism. In this paper, a viscoelastic damper (VEM damper) using a lever-type displacement magnifying mechanism are proposed in order to obtain passive dampers which give damping and stiffness within a relative displacement in the region of 0.1〜10 mm. The VEM damper consists of a displacement magnifying mechanism, viscoelastic materials and base plate. The trial damper was made and the resisting force characteristics were measured. To describe the mathematical properties of the VEM damper, a four-element viscoelastic model was used, and the parameter of the model was identified using the experimental results. The frequency responses and seismic responses of a three-dimensional piping system supported by the damper were measured using an electrohydraulic type shaking table. The experimental results are compared with the calculated results obtained by a finite element method (ANSYS), and the effects of vibration suppression of the damper are discussed.
一般社団法人日本機械学会の論文
2001-08-03