振動台実験による棒群の衝突振動特性 : 第1報, 跳躍振動数の検討

概要

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The impact vibrations of grouped bars between restraints caused by excitations such as earthquakes are studied by shaking table experiments. In this report, the frequencies at which jump phenomena occur (jump frequencies) are considered. The parameters relating to jump frequencies are derived, and shaking table experiments are performed on these parameters. The experimental results show that jump frequencies are not influenced by the impact stiffness and the number of bars, but are influenced by the parameters relating to the nondimensional input parameter such as the position of the impact springs, the total gap and the input acceleration. The analytical results using the single-degree-of-freedom model introduced by the observed phenomena are in good agreement with the experimental ones assuming a proper value of the coefficient of restitution.
一般社団法人日本機械学会の論文
1989-04-25