荷重組合せを考慮した非線形履歴系の動的信頼性解析 : 第1報,一自由度系の場合

概要

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A method to estimate the dynamic reliability of hysteretic structures under combined time varying loads is investigated. The response statistical moments of structures, with hysteretic characteristics approximated by Wen's mathematical model, are obtained by using the Fokker-Planck equation method with a cumulant truncation technique. Furthermore, first passage probability considering stochastic load combinations is derived by the load coincidence method under the assumption of a Poisson process for threshold crossings. The uncertainties of power spectral densities pertinent to loads as stochastic processes, are also considered through the derivation of first passage probability. This paper, as a 1st report, describes the analysis of a single-degree-of-freedom system, and demonstrates that resulting variances and covariances of the response agree well with Monte Carlo simulation.
一般社団法人日本機械学会の論文
1988-08-25