The theory of response analysis of fuzzy stochastic dynamical systems with a single degree of freedom

被引:0
|
作者
Zhang, Y
Wang, GY
Su, F
Zhong, Q
机构
[1] HARBIN UNIV ARCHITECTURE & ENGN,RES INST ENGN SCI & TECHNOL,HARBIN 150006,HEILONGJIAN,PEOPLES R CHINA
[2] HEBEI INST ARCHITECTURAL ENGN,DEPT BASIC SCI,ZHANGJIAKOU 075024,HEBEI,PEOPLES R CHINA
来源
EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS | 1996年 / 25卷 / 03期
关键词
fuzzy stochastic dynamic system; fuzzy random excitation; dynamic response; single-degree-of-freedom (sdf) system; fuzzy stochastic process; RANDOM-VARIABLES; OPTIMUM DESIGN;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Most real-life structural/mechanical systems have complex geometrical and material properties and operate under complex fuzzy environmental conditions. These systems are certainly subjected to fuzzy random excitations induced by the environment. For an analytical treatment of such a system subjected to fuzzy random excitations, it becomes necessary to establish the general theory of dynamic response of a system to fuzzy random excitations. In this paper, the theory of response, fuzzy mean response and fuzzy covariance response of a single-degree-of-freedom (sdf) system to fuzzy random excitations in the time domain and frequency domain is put forward. The theory of response analysis of an sdf system to both stationary and non-stationary fuzzy random excitations in the time domain and frequency domain is established. Two examples are considered in order to demonstrate the rationality and validity of the theory, and the models of stationary filtered white noise and non-stationary filtered white noise fuzzy stochastic processes of the earthquake ground motion are set up. Methods of analysis for fuzzy random seismic response of sdf systems are put forward using the principles of response analysis of an sdf fuzzy random dynamic system.
引用
收藏
页码:235 / 251
页数:17
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