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A reduction method for structure-acoustic and poroelastic-acoustic problems using interface-dependent Lanczos vectors

Davidsson, Peter LU and Sandberg, Göran LU (2006) In Computer Methods in Applied Mechanics and Engineering 195(17-18). p.1933-1945
Abstract
A reduction method is proposed for analysing structure-acoustic and poroelastic-acoustic problems within a finite element framework. This includes systems consisting of an acoustic fluid domain coupled to a flexible structural domain and/or a porous sound absorbing material domain. The studied problem is reduced by dividing the system into a number of physical subdomains. A set of basis vectors is derived for each of these subdomains, including both normal modes and interface-dependent vectors that take account of the influence of connecting subdomains. The method is verified in two numerical examples using the proposed method for both solving the structure-acoustic eigenvalue problem and performing a frequency response analysis in an... (More)
A reduction method is proposed for analysing structure-acoustic and poroelastic-acoustic problems within a finite element framework. This includes systems consisting of an acoustic fluid domain coupled to a flexible structural domain and/or a porous sound absorbing material domain. The studied problem is reduced by dividing the system into a number of physical subdomains. A set of basis vectors is derived for each of these subdomains, including both normal modes and interface-dependent vectors that take account of the influence of connecting subdomains. The method is verified in two numerical examples using the proposed method for both solving the structure-acoustic eigenvalue problem and performing a frequency response analysis in an acoustic cavity with one wall covered by porous material. (c) 2005 Elsevier B.V. All rights reserved. (Less)
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author
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Contribution to journal
publication status
published
subject
keywords
poroclastic, structure-acoustic, component mode synthesis, Biot's theory
in
Computer Methods in Applied Mechanics and Engineering
volume
195
issue
17-18
pages
1933 - 1945
publisher
Elsevier
external identifiers
  • wos:000236021900003
  • scopus:32044438196
ISSN
0045-7825
DOI
10.1016/j.cma.2005.02.024
language
English
LU publication?
yes
id
8eeb79e5-ab68-41c3-9fbd-7f1d3096a88d (old id 415781)
date added to LUP
2016-04-01 15:33:54
date last changed
2021-02-17 05:12:20
@article{8eeb79e5-ab68-41c3-9fbd-7f1d3096a88d,
  abstract     = {A reduction method is proposed for analysing structure-acoustic and poroelastic-acoustic problems within a finite element framework. This includes systems consisting of an acoustic fluid domain coupled to a flexible structural domain and/or a porous sound absorbing material domain. The studied problem is reduced by dividing the system into a number of physical subdomains. A set of basis vectors is derived for each of these subdomains, including both normal modes and interface-dependent vectors that take account of the influence of connecting subdomains. The method is verified in two numerical examples using the proposed method for both solving the structure-acoustic eigenvalue problem and performing a frequency response analysis in an acoustic cavity with one wall covered by porous material. (c) 2005 Elsevier B.V. All rights reserved.},
  author       = {Davidsson, Peter and Sandberg, Göran},
  issn         = {0045-7825},
  language     = {eng},
  number       = {17-18},
  pages        = {1933--1945},
  publisher    = {Elsevier},
  series       = {Computer Methods in Applied Mechanics and Engineering},
  title        = {A reduction method for structure-acoustic and poroelastic-acoustic problems using interface-dependent Lanczos vectors},
  url          = {http://dx.doi.org/10.1016/j.cma.2005.02.024},
  doi          = {10.1016/j.cma.2005.02.024},
  volume       = {195},
  year         = {2006},
}