Absorbing interfaces in structural-acoustic coupled problems

被引：1
|
作者：
Larbi, Walid [1 ]
Deue, Jean-Francois [1 ]
Ohayon, Roger [1 ]
机构：
[1] Conservatoire Natl Arts & Metiers, Struct Mech & Coupled Syst Lab, Chaire Mecan, 2 Rue Conte, F-75003 Paris, France
来源：
EUROPEAN JOURNAL OF COMPUTATIONAL MECHANICS | 2008年 / 17卷 / 5-7期
关键词：
elastoacoustic; noise reduction; porous medium; wall acoustic impedance; finite elements;
D O I：
10.3166/REMN.17.677-688
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This work concerns finite element formulations of structural-acoustic interior problems with dissipative interfaces. The main purpose is to establish the link between wall acoustic impedance models and poroelastic appraoches based on the Biot theory. The proposed method consists in determining the acoustic impedance parameters starting from intrinsic characteristics of the porous medium. This impedance is then introduced into the vibroacoustic finite element formulation to take into account the dissipative aspect of the fluid-structure interface.
引用
收藏
页码：677 / 688
页数：12
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