33 振幅および振動数依存性を有する粘弾性ダンパーの力学モデルの構築

概要

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A mechanical model of a visco-elastic damper is proposed by using the results of sinusoidal loading tests and a nonlinear four-elements model. The proposed mechanical model can represent amplitude- and frequency-dependent property of the visco-elastic damper. The nonlinear dashpot- and stiffness-elements of the four-elements model are determined by utilizing the test results and the characteristic that the equivalent damping factor keeps an almost constant value irrespective of the amplitude and the frequency of the sinusoidal loading. The validity of the proposed mechanical model is demonstrated by comparing the test results and the simulations via the proposed model. Response analyses of a building subjected to an earthquake motion are carried out to illustrate the effects of the installed visco-elastic dampers and to compare the proposed model with other mechanical models.
一般社団法人日本建築学会の論文
1998-03-20