Interval optimization of dynamic response for uncertain structures with natural frequency constraints

被引：19

作者：

Chen, SH ^{[1
]}

Wu, J ^{[1
]}

机构：

[1] Jilin Univ Technol, Dept Mech, Changchun 130025, Peoples R China

来源：

ENGINEERING STRUCTURES | 2004年 / 26卷 / 02期

基金：

中国国家自然科学基金;

关键词：

interval optimization; interval parameter; interval parameter structure; interval extension of function; interval dynamic response;

D O I：

10.1016/j.engstruct.2003.09.012

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents an interval optimization method for the dynamic response of uncertain structures with natural frequency constraints. The matrices of structures with interval parameters are given. Combining the interval extension of function with the perturbation theory of dynamic response and eigenvalue analysis, the optimization method for interval dynamic response analysis is derived. The interval optimization problem is transformed into a corresponding deterministic one. Because the mean values and the uncertainties of the interval parameters can be selected as the optimization parameters, more information of the optimization results can be obtained by the present method than that obtained by the deterministic one. The present method is implemented for a truss structure and a frame structure. The numerical results show that the method is effective. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：221 / 232

页数：12

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