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Updating acoustic models: a constitutive relation error approach

In the global framework of improving vibro-acoustic numerical prediction quality together with the need to decrease the number of prototyping stages, this manuscript focuses on achieving greater accuracy for acoustic numerical simulations by making use of a parametric updating technique, which enables tuning the model parameters inside physically meaningful boundaries. The improved model is used for the next prototyping stages, allowing more accurate results within reduced simulation times. The updating technique is based on recent works dealing with the constitutive relation error method (CRE) applied to acoustics. The updating process focuses on improving the acoustic damping matrix related to the absorbing properties of the materials covering the borders of the acoustic domain. / Doctorat en sciences appliquées / info:eu-repo/semantics/nonPublished

Identiferoai:union.ndltd.org:ulb.ac.be/oai:dipot.ulb.ac.be:2013/210572
Date31 January 2008
CreatorsDecouvreur, Vincent
ContributorsBouillard, Philippe, Ladevèze, Pierre, Warzée, Guy, Jacobsen, Finn, Desmet, Wim, Ichchou, Mohamed M.N., Migeot, Jean-Louis
PublisherUniversite Libre de Bruxelles, Université libre de Bruxelles, Faculté des sciences appliquées – Construction, Bruxelles
Source SetsUniversité libre de Bruxelles
LanguageFrench
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/doctoralThesis, info:ulb-repo/semantics/doctoralThesis, info:ulb-repo/semantics/openurl/vlink-dissertation
Format1 v., 2 full-text file(s): application/pdf | application/pdf
Rights2 full-text file(s): info:eu-repo/semantics/openAccess | info:eu-repo/semantics/openAccess

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