Correlation failure analysis of an uncertain hysteretic vibration system 被引量：3

Correlation failure analysis of an uncertain hysteretic vibration system

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摘要 In this paper, a numerical method for correlation sensitivity analysis of a nonlinear random vibration system is presented. Based on the first passage failure model, the probability perturbation method is employed to determine the statistical characteristics of failure modes and the correlation between them. The sensitivity of correlation between failure modes with respect to random parameters characterizing the uncertainty of the hysteretic loop is discussed. In a numerical example, a two-DOF shear structure with uncertain hysteretic restoring force is considered. The statistical characteristics of response, failure modes and the sensitivity of random hysteretic loop parameters are provided, and also compared with a Monte Carlo simulation. In this paper, a numerical method for correlation sensitivity analysis of a nonlinear random vibration system is presented. Based on the first passage failure model, the probability perturbation method is employed to determine the statistical characteristics of failure modes and the correlation between them. The sensitivity of correlation between failure modes with respect to random parameters characterizing the uncertainty of the hysteretic loop is discussed. In a numerical example, a two-DOF shear structure with uncertain hysteretic restoring force is considered. The statistical characteristics of response, failure modes and the sensitivity of random hysteretic loop parameters are provided, and also compared with a Monte Carlo simulation.

作者张旭方张义民郝秋菊

机构地区 School of Mechanical Engineering

出处《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2008年第1期57-65,共9页 地震工程与工程振动（英文刊）

基金 National Natural Science Foundation of ChinaUnder Grant No: 50535010

关键词 correlated failure modes uncertain hysteretic loop parameter sensitivity analysis nonlinear randomvibration first passage failure model Monte Carlo simulation correlated failure modes uncertain hysteretic loop parameter sensitivity analysis nonlinear randomvibration first passage failure model Monte Carlo simulation

分类号 TP391.7 [自动化与计算机技术—计算机应用技术]

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