An optimized BEM-FEM iterative coupling algorithm for acoustic-elastodynamic interaction analyses in the frequency domain

被引：26

作者：

Soares, D., Jr. ^{[1
]}

Godinho, L. ^{[2
]}

机构：

[1] Univ Fed Juiz de Fora, Dept Struct Engn, BR-36036330 Juiz De Fora, MG, Brazil

[2] Univ Coimbra, Dept Civil Engn, CICC, P-3030788 Coimbra, Portugal

来源：

COMPUTERS & STRUCTURES | 2012年 / 106卷

关键词：

Acoustics; Elastodynamics; Boundary Element Method; Finite Element Method; Frequency domain analysis; Optimal relaxation parameters; FLUID-STRUCTURE INTERACTION; TIME-DOMAIN; FINITE-ELEMENT; BEM/FEM; WAVES;

D O I：

10.1016/j.compstruc.2012.04.010

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this work, a coupled BEM-FEM strategy for the analysis of fluid-solid interaction problems in the frequency domain is presented. Here, acoustic fluids are modelled by the BEM, whereas elastodynamic solids are discretized by the FEM. The fluid-solid coupling is carried out by an optimized iterative procedure. This coupling technique allows independent discretizations to be efficiently employed for both Boundary and Finite Element Methods, without any requirement of matching nodes at the fluid/solid common interfaces. Optimal relaxation parameters are computed, in order to ensure the convergence of the iterative procedure, properly dealing with the frequency domain wave propagation ill-posed problem. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：68 / 80

页数：13

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