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Erschienen in: Journal of Engineering Mathematics 1/2016

06.05.2015

Eigensensitivity of symmetric damped systems with repeated eigenvalues by generalized inverse

verfasst von: Pingxin Wang, Hua Dai

Erschienen in: Journal of Engineering Mathematics | Ausgabe 1/2016

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Abstract

We consider computation of the derivatives of the semisimple eigenvalues and corresponding eigenvectors of a symmetric quadratic eigenvalue problem. Using the normalization condition, we can compute the derivatives of the differentiable eigenvalues of the quadratic eigenvalue problem. Using the constrained generalized inverse, we present an efficient algorithm to compute the particular solutions to the governing equation of the derivatives of eigenvectors. The proposed method is suitable for the computation of the eigenpair derivatives of a symmetric quadratic eigenvalue problem when the first-order derivatives of eigenvalues are distinct or repeated. A numerical example is included to illustrate the validity of the proposed method.

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Metadaten
Titel
Eigensensitivity of symmetric damped systems with repeated eigenvalues by generalized inverse
verfasst von
Pingxin Wang
Hua Dai
Publikationsdatum
06.05.2015
Verlag
Springer Netherlands
Erschienen in
Journal of Engineering Mathematics / Ausgabe 1/2016
Print ISSN: 0022-0833
Elektronische ISSN: 1573-2703
DOI
https://doi.org/10.1007/s10665-015-9790-1

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