Substructuring approach to the calculation of higher-order eigensensitivity

被引：36

作者：

Weng, Shun ^{[1
]}

Zhu, Hong-Ping ^{[1
]}

Xia, Yong ^{[2
]}

Zhou, Xiao-Qing ^{[3
]}

Mao, Ling ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Civil Engn & Mech, Wuhan 430074, Hubei, Peoples R China

[2] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China

[3] Shenzhen Univ, Coll Civil Engn, Shenzhen, Peoples R China

来源：

COMPUTERS & STRUCTURES | 2013年 / 117卷

基金：

中国国家自然科学基金;

关键词：

Eigensensitivity; Eigensolution derivative; Substructuring method; Residual flexibility; ASYMMETRIC DAMPED SYSTEMS; COMPUTING EIGENVECTOR DERIVATIVES; REPEATED EIGENVALUES; EFFICIENT COMPUTATION; STRUCTURAL DYNAMICS; NELSONS METHOD; SENSITIVITIES; 2ND-ORDER; DISTINCT; IDENTIFICATION;

D O I：

10.1016/j.compstruc.2012.11.005

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Calculation of eigensensitivity is usually time-consuming for a large-scale structure. This paper develops a substructuring method for computing the first, second and high order eigensensitivity. The local area of a structure is treated as an independent substructure to be analyzed. The eigensensitivity of global structure with respect to a design parameter is calculated from the eigensensitivity of a particular substructure that contains the design parameter, thus allowing a significant reduction in computational cost. The accuracy and efficiency of the substructuring method is proved by a frame structure and a highway bridge. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：23 / 33

页数：11

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