Dynamic Response Analysis of Fuzzy Stochastic Truss Structures under Fuzzy Stochastic Excitation

被引:0
|
作者
Juan Ma
Jian-jun Chen
Wei Gao
机构
[1] Xidian University,School of Electronic Mechanical Engineering
[2] The University of New South Wales,School of Mechanical and Manufacturing Engineering
来源
Computational Mechanics | 2006年 / 38卷
关键词
Fuzzy factor method; Fuzzy stochastic truss; Fuzzy stochastic step load; Fuzzy stochastic dynamic response;
D O I
暂无
中图分类号
学科分类号
摘要
A novel method (Fuzzy factor method) is presented, which is used in the dynamic response analysis of fuzzy stochastic truss structures under fuzzy stochastic step loads. Considering the fuzzy randomness of structural physical parameters, geometric dimensions and the amplitudes of step loads simultaneously, fuzzy stochastic dynamic response of the truss structures is developed using the mode superposition method and fuzzy factor method. The fuzzy numerical characteristics of dynamic response are then obtained by using the random variable’s moment method and the algebra synthesis method. The influences of the fuzzy randomness of structural physical parameters, geometric dimensions and step load on the fuzzy randomness of the dynamic response are demonstrated via an engineering example, and Monte-Carlo method is used to simulate this example, verifying the feasibility and validity of the modeling and method given in this paper.
引用
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页码:283 / 292
页数:9
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