A quadratic inverse eigenvalue problem in damped structural model updating

被引：12
|
作者：
Mao, Xiaobin [1 ]
Dai, Hua [2 ]
机构：
[1] China Elect Technol Grp Corp, Res Inst 28, Informat Syst Engn Key Lab, Nanjing 210007, Jiangsu, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Dept Math, Nanjing 210016, Jiangsu, Peoples R China
来源：
APPLIED MATHEMATICAL MODELLING | 2016年 / 40卷 / 13-14期
基金：
中国国家自然科学基金;
关键词：
Inverse eigenvalue problem; Incomplete eigenvector; Damped structural system; Model updating; GENERALIZED LYAPUNOV EQUATIONS; EIGENSTRUCTURE ASSIGNMENT; STIFFNESS MATRICES; NUMERICAL-SOLUTION; MASS; IMPROVEMENT;
D O I：
10.1016/j.apm.2016.01.055
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A quadratic inverse eigenvalue problem arising from damped structural model updating is presented in this paper. The existence of solution to the problem is analyzed. A new model updating method for damped structural systems is proposed. The new approach can update directly the damped model using the spatially incomplete modes without using model reduction or eigenvector expansion techniques. Numerical examples show that the proposed method is efficient. (C) 2016 Elsevier Inc. All rights reserved.
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页码：6412 / 6423
页数：12
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