128 大規模非線形系の定常周期解に対する安定判別法

概要

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By applying the incremental transfer stiffness coefficient method to a large-scale nonlinear structure, the stable and unstable solutions can be computed without distinction. Therefore, the stability of the solution obtained has to be analyzed. In order to analyze the stability of solution of large-scale system, the stability analysis method by the reduction model and the method to select the modes that dominate the stability of the solution were developed. In this report, the new method to select the dominant modes is proposed. The present method can select rationally the dominant modes by estimating the quantity of energy that is caused by modal interaction of nonlinear system. The validity of the present method is confirmed by the numerical computational results.
一般社団法人日本機械学会の論文
2002-09-13