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méthode énergétique simplifiée (mes)

Mechanics & Industry (1)

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Méthode énergétique inverse appliquée à la détection de sources acoustiques
Mohamed Amine Chabchoub, Sébastian Besset, Mohamed Ichchou, Louis Jezequel
Journal:

Mechanics & Industry / Volume 9 / Issue 6 / November 2008

Published online by Cambridge University Press:

16 May 2009, pp. 571-578

Print publication:

November 2008
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La qualité sonore des véhicules constitue aujourd'hui un critère important de conception. Dans ce cadre, la détection de sources acoustiques est une problématique majeure. En effet, si l'analyse du bruit dans une cavité peut être traitée de manière classique (FEM, BEM...), les problèmes inverses posent souvent des problèmes liés à la taille des calculs effectués ou au conditionnement des matrices à inverser. Nous nous proposons ici d'étudier une méthode énergétique simplifiée (MES) qui présente la particularité d'être avantageusement inversible. Le but de la méthode proposée est de parvenir à localiser des sources acoustiques surfaciques à partir de mesures effectuées dans une cavité.