Response and first-passage failure of hysteretic system under non-Gaussian random excitation
Received:September 26, 2012  Revised:January 02, 2013
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DOI:10.7511/jslx201401003
KeyWord:non-Gaussian random excitation  hysteretic system  stationary response  first-passage failure
     
AuthorInstitution
曾岩 大连理工大学 工程力学系 工业装备结构分析国家重点实验室, 大连
李刚 大连理工大学 工程力学系 工业装备结构分析国家重点实验室, 大连
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Abstract:
      Stationary response and first passage failure time of two classical hysteretic systems,bilinear hysteretic system and Bouc-Wen hysteretic system,are investigated by using Monte Carlo simulation method under non-Gaussian random excitation which consists of bounded noise,Poisson white noise and Gaussian white noise in the present paper.As bounded noise is a typical non-Gaussian random excitation with continuous sample functions and Poisson white noise is a typical non-Gaussian random excitation with discontinuous sample functions,different effects of parameters of these two non-Gaussian random excitations are investigated on probability densities of stationary response,probability densities and mean values of first passage failure time of bilinear hysteretic system and Bouc-Wen hysteretic system.It is found that probability density of first passage failure time of bilinear hysteretic system is a typical two-peak function,but which of Bouc-Wen hysteretic system is a one-peak function under such non-Gaussian random excitation.