Méthode de calcul du rayonnement acoustique de structures complexes

Details Méthode de calcul du rayonnement acoustique de structures complexes Méthode de calcul du rayonnement acoustique de structures complexes

2008-04-08

arxiv.org/abs/0804.1187v1

Dans Actes du huiti\`eme colloque national en Calcul des structures - GIENS 2007 - Huiti\`eme colloque national en Calcul des

Computer Science

Computational Engineering, Finance, and Science

Scientific paper

In the automotive industry, predicting noise during design cycle is a necessary step. Well-known methods exist to answer this issue in low frequency domain. Among these, Finite Element Methods, adapted to closed domains, are quite easy to implement whereas Boundary Element Methods are more adapted to infinite domains, but may induce singularity problems. In this article, the described method, the SDM, allows to use both methods in their best application domain. A new method is also presented to solve the SDM exterior problem. Instead of using Boundary Element Methods, an original use of Finite Elements is made. Efficiency of this new version of the Substructure Deletion Method is discussed.

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