Variational characterization of eigenvalues of a non-symetric eigenvalue problem governing elastoacoustic vibrations.

Autor: Stammberger, Markus
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Jazyk: angličtina
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Druh dokumentu: Non-fiction
ISSN: 0862-7940
Abstrakt: Abstract: Small amplitude vibrations of an elastic structure completely filled by a fluid are considered. Describing the structure by displacements and the fluid by its pressure field one arrives at a non-selfadjoint eigenvalue problem. Taking advantage of a Rayleigh functional we prove that its eigenvalues can be characterized by variational principles of Rayleigh, minmax and maxmin type.
Databáze: Katalog Knihovny AV ČR