大形構造物用可変減衰裝置に関する研究 : 減衰カコントローラの開発と動的加力試験(<特集> ダンピング)

概要

論文の詳細を見る
We propose an adjustable hydraulic damper (AHD) which, using an energy supply of only tens of watts, can control large damping force. The AHD controls the vibration of a large structures by varying the degree to which a flow control valve located between two chambers in a hydraulic cylinder. This paper outlines a damping force controller which may enable an AHD to control structural vibration caused by high winds or large earthquakes. The results of performance evaluation tests of a scale-model AHD are also presented. To evaluate performance, dynamic loading tests were conducted using sinusoidal waves and loading conditions derived from analyses of building responses to earthquakes and wind force, for a case in which an AHD with a maximum damping force of 1 x 10^6 N is installed in a building approximately l00m high. The tests revealed that the AHD is capable of the performance required of an actual system, and that the damping force controller functioned well. In addition, a simple analytical model which represents the characteristics of the AHD is proposed and the appropriateness of the AHD is confirmed.
社団法人日本機械学会の論文
1993-10-25