Efficient Computation of Eigenvector Sensitivities for Structural Dynamics

An iterative procedure is presented for computing eigenvector sensitivities due to finite element model parameter variations. The present method is a preconditioned conjugate projected gradient-based technique and is intended to utilize the existing matrix factorizations developed for an iterative e...

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Veröffentlicht in:	AIAA journal 1997-11, Vol.35 (11), p.1760-1766
1. Verfasser:	Alvin, Kenneth F
Format:	Artikel
Sprache:	eng
Schlagworte:	Aircraft Design engineering Exact sciences and technology Fundamental areas of phenomenology (including applications) Mathematical models Physics Solid mechanics Structural and continuum mechanics Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...) Vibrations and mechanical waves
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Beschreibung
Zusammenfassung:	An iterative procedure is presented for computing eigenvector sensitivities due to finite element model parameter variations. The present method is a preconditioned conjugate projected gradient-based technique and is intended to utilize the existing matrix factorizations developed for an iterative eigensolution such as Lanezos or Subspace Iteration.
ISSN:	0001-1452 1533-385X
DOI:	10.2514/2.24