Stochastic dynamics with fatigue-induced stiffness degradation

被引:19
作者
Sobczyk, K [1 ]
Trebicki, J [1 ]
机构
[1] Polish Acad Sci, Inst Fundamental Technol Res, PL-00049 Warsaw, Poland
关键词
stochastic dynamics; stiffness degradation; randomly vibrating systems;
D O I
10.1016/S0266-8920(99)00012-0
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This article deals with stochastic dynamics coupled with simultaneous evolution of degradation of the system properties. We provide a general formulations and interpretations of various response-degradation problems associated with randomly vibrating systems and then an efficient analysis of vibratory systems with fatigue-induced stiffness degradation is presented. First, an approach to the random vibration problem with empirical characterization of stiffness degradation is sketched out and then the efficient sequential method for a coupled analysis of the response-degradation is presented in detail including numerical illustration of the results. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:91 / 99
页数:9
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