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Hierarchical finite element modelling of Biot's equations for vibro-acoustic modelling of layered poroelastic media

This thesis concerns three-dimensional finite element modelling of Biot's equations for elasto-acoustic modelling of wave propagation in layered media including porous elastic materials. The concept of hierarchical (p-version) finite elements are combined with various weak forms of Biot's equations. Computationally efficient methods providing accurate solutions of sound propagation in layered porous media are discussed. The research falls within the areas linear acoustics and numerical acoustics. Important applications of the developed methods may be found within vehicle interior acoustics, e.g. engineering design of damping treatment based on multiple layers of porous materials. / QC 20100618

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kth-95
Date January 2004
CreatorsHörlin, Nils-Erik
PublisherKTH, Farkost- och flygteknik, Stockholm : KTH
Source SetsDiVA Archive at Upsalla University
LanguageEnglish
Detected LanguageEnglish
TypeDoctoral thesis, comprehensive summary, info:eu-repo/semantics/doctoralThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess
RelationTrita-AVE, 1651-7660 ; 2004:46

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