Simultaneous iterative method for the derivatives of several eigenpairs of unsymmetric damped systems

被引:5
作者
Xie, Huiqing [1 ]
机构
[1] E China Univ Sci & Technol, Dept Math, Shanghai 200237, Peoples R China
关键词
Eigenvector derivative; Eigenvalue derivative; Damped system; Iterative method; REPEATED EIGENVALUES; COMPUTING DERIVATIVES; EIGENVECTORS; COMPUTATION; SENSITIVITY; DISTINCT;
D O I
10.1016/j.ymssp.2015.04.005
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In this paper, a new iterative method is proposed to calculate a few eigenpair derivatives of damped systems. The proposed method simultaneously computes the derivatives of several simple eigenvalues and their corresponding eigenvectors. Eigenpair derivatives are directly determined in n-space. Moreover, our method does not require the left eigenvectors. Convergence theory of the proposed method is given. On these grounds, using vector epsilon-algorithm, acceleration techniques for our method are provided and analyzed. Finally some numerical experiments are reported to show the efficiency of the proposed methods. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:377 / 384
页数:8
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