NONLINEAR PERTURBATION METHOD FOR ANALYSIS OF MODAL SENSITIVITIES WITH REPEATED EIGENVALUES

Cui Bowen and; Shen Yunwen

Volume 13 Issue 1

Jan. 1998

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Cui Bowen and, Shen Yunwen. NONLINEAR PERTURBATION METHOD FOR ANALYSIS OF MODAL SENSITIVITIES WITH REPEATED EIGENVALUES[J]. Journal of Aerospace Power, 1998, 13(1): 89-92,111.

Citation:

Cui Bowen and, Shen Yunwen. NONLINEAR PERTURBATION METHOD FOR ANALYSIS OF MODAL SENSITIVITIES WITH REPEATED EIGENVALUES[J]. Journal of Aerospace Power, 1998, 13(1): 89-92,111.

Cui Bowen and, Shen Yunwen. NONLINEAR PERTURBATION METHOD FOR ANALYSIS OF MODAL SENSITIVITIES WITH REPEATED EIGENVALUES[J]. Journal of Aerospace Power, 1998, 13(1): 89-92,111.

Citation:

Cui Bowen and, Shen Yunwen. NONLINEAR PERTURBATION METHOD FOR ANALYSIS OF MODAL SENSITIVITIES WITH REPEATED EIGENVALUES[J]. Journal of Aerospace Power, 1998, 13(1): 89-92,111.

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NONLINEAR PERTURBATION METHOD FOR ANALYSIS OF MODAL SENSITIVITIES WITH REPEATED EIGENVALUES

7th Dept.Northwestern Polytechnical University,Xi'an 710072

Received Date: 1996-12-01
Rev Recd Date: 1997-03-01
Publish Date: 1998-01-28

Abstract

Abstract

An algorithm was made out for analyzing the modal sensitivities with repeated eigenvalues of real symmetric matrices by means of nonlinear perturbation equation.It has advantage in retaining the symmetry and band structure of the original eigensystem matrices.A numerical example shows that the method has high accuracy and can be easily implemented on computer.
- Modal analysis,
- Eigenvalues,
- Perturbation method