Coupled Finite And Boundary Element Methods for Vibro-Acoustic Interface Problems

Gerhard Unger, Olaf Steinbach*, Arno Kimeswenger

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandBegutachtung

Abstract

We consider a symmetric coupling of finite and boundary element methods for a vibro-acoustic interface problem. While the time-harmonic vibrating structure is described by a finite element variational problem, we use the symmetric formulation of boundary integral equations to model the acoustic fluid in the unbounded exterior domain. When using the symmetric coupling we obtain a formulation which excludes spurious modes, and which is stable for almost all frequencies. In addition to a direct simulation we also consider the related eigenvalue problem which is nonlinear in the eigenfrequency, and which can be solved by using a contour integral approach. Numerical results are given.
Originalspracheenglisch
TitelDomain Decomposition Methods in Science and Engineering XXI
Herausgeber (Verlag)Springer
Seiten507-516
ISBN (elektronisch)978-3-319-05789-7
ISBN (Print)978-3-319-05788-0
DOIs
PublikationsstatusVeröffentlicht - 2014
VeranstaltungDomain Decomposition Methods in Science and Engineering XXI - Rennes, Frankreich
Dauer: 25 Juni 201229 Juni 2012

Publikationsreihe

Name Lecture Notes in Computational Science and Engineering
Band98

Konferenz

KonferenzDomain Decomposition Methods in Science and Engineering XXI
Land/GebietFrankreich
OrtRennes
Zeitraum25/06/1229/06/12

Fields of Expertise

  • Information, Communication & Computing

Treatment code (Nähere Zuordnung)

  • Application

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