21717 任意周期励振を受ける2自由度ばね-質量系の定常衝突振動 : 主共振および高調波共振における解析(アクティブ・係数励振系,OS.4 振動・音響の制振技術,学術講演)

概要

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This paper deals with impact vibration in a mass-spring system for two-degree-of-freedom excited by periodic force with arbitrary functions. The analytical model is steady impact vibration having two masses which one mass is subjected to an exciting vibration, and the elastic collision is done to another mass when amplitude of the mass exceeds than the clearance. Then the restitution force has characteristics of an unsymmetric piecewise-linear system. In order to analyze the resulting vibration for the main and the superharmonic resonance, the Fourier series method is applied to obtain an exact solution for resulting vibration. Next, following the theoretical analysis, the numerical calculations are performed to obtain the resonance curves. The numerical results show effects of the stiffness of the clamped spring and the mass ratio on the resonance curves.
社団法人日本機械学会の論文
2008-03-13