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An efficient solver for finite-element poroelastic problems
LAUM, Uni du Maine, Le Mans France.
LAUM, Uni du Maine, Le Mans France.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Structural and vibroacoustics.ORCID iD: 0000-0003-1855-5437
2012 (English)In: Proceedings - European Conference on Noise Control, 2012, 851-853 p.Conference paper (Refereed)
Abstract [en]

Structural-acoustic finite element models including 3D modelling of poroelastic media modelled with the Biot theory are generally computationally costly. While being the most commonly used predictive tool in the context of noise reduction applications, efficient solution strategies are required. In this work, an original modal reduction technique, involving real-valued decoupled modes computed from a classical eigenvalue solver is proposed to reduce the size of the problem associated to the porous media. The idea of this technique is to enhance the modal basis with static correction calculated analytically which account for the response of non-preserved modes.

Place, publisher, year, edition, pages
2012. 851-853 p.
Keyword [en]
Architectural acoustics, Eigenvalues and eigenfunctions, Porous materials
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-103643ScopusID: 2-s2.0-84865977922ISBN: 978-800105013-2OAI: diva2:561501
9th European Conference on Noise Control, EURONOISE 2012;Prague;10 June 2012 through 13 June 2012
TrenOp, Transport Research Environment with Novel Perspectives

QC 20121019

Available from: 2012-10-19 Created: 2012-10-17 Last updated: 2012-12-21Bibliographically approved

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