Unsymmetrical Nonlinear Vibration Systems under Random Loading

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  • 不規則変動荷重をうける非対称非線形系
  • フキソク ヘンドウ カジュウ オ ウケル ヒタイショウ ヒセンケイケイ

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Abstract

In this paper the author analyzes the effects of the unsymmetrical nonlinearity of restoring force and the mean square value of a random loading on the mean square value and spectrum of displacement in a vibration system which has a single degree of freedom. In this analysis an iteration method is applied to solve the equation of motion, assuming that the nonlinearity and loading have small values, and the approximate mean square value and spectrum of displacement are expressed by an equivalent loading spectrum. The random loading is expressed by Fouries series, and in case of white spectrum and experiment is made by an analog computer.

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