SIMULATION OF MUFFLER'S TRANSMISSION LOSSES BY A HOMOGENIZED FINITE ELEMENT METHOD-Reference-Cited by-同舟云学术

SIMULATION OF MUFFLER'S TRANSMISSION LOSSES BY A HOMOGENIZED FINITE ELEMENT METHOD

Published:2004-09 Issue:03 Volume:12 Page:447-474
ISSN:0218-396X
Container-title:Journal of Computational Acoustics
language:en
Short-container-title:J. Comp. Acous.

Author:

BONNET-BENDHIA A. S.¹,DRISSI D.²,GMATI N.²

Affiliation:

1. POEMS, UMR 2706 CNRS-ENSTA-INRIA, 32 Boulevard Victor, 75739 Paris Cedex 15, France

2. ENIT-LAMSIN, Campus Universitaire, B.P. 37, 1002 Tunis, Tunisia

Abstract

In this work, we are interested in the modelling of the acoustic attenuation of exhaust mufflers including perforated ducts, and its numerical computation. The study is worked out in harmonic time regime, for the two-dimensional case. The hole diameter and the center-to-center distance between consecutive holes are supposed of same order, and small compared to the size of the muffler. The formulation is derived by using multiscale techniques and matching the asymptotic expansions. The numerical method couples finite elements in the muffler with modal decomposition in the inlet and the outlet of the duct.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Acoustics and Ultrasonics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218396X04002304

Reference14 articles.

1. Analysis of three dimensional muffler with boundary element method

2. A finite element analysis of perforated component acoustic systems

3. Acoustic fluid flow through holes and permeability of perforated walls

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