424 大規模非線形系の振動解析と安定判別 : 低次元化モデルを利用した解析の妥当性の検証

概要

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In this report, the validity of nonlinear vibration analysis by applying a reduction model is checked. Applying a ordinary non-linear vibration analysis method directly to a periodic steady-state vibration analysis of a system with large degrees of freedom, there are many cases that calculation becomes impossible because dimensions of treated matrices become huge. Therefore, in the most case, a vibration behavior of a large-scale system is estimated from analysis result of a reduction model obtained by applying the concept of modal analysis to a large-scale system. In this report, on the basis of such present way, the efficiencies of the method using a reduction model and the Incremental Transfer Stiffness Coefficient Method, which algorithm involves no approximate process without modeling process, are validated by comparing the computational result obtained by both methods.
社団法人日本機械学会の論文
2003-09-16