An optimised FEM-BEM time-domain iterative coupling algorithm for dynamic analys

被引：27
|
作者：
Soares, Delfim, Jr. [1 ]
机构：
[1] Univ Fed Juiz de Fora, Dept Struct Engn, BR-36036330 Juiz De Fora, MG, Brazil
来源：
COMPUTERS & STRUCTURES | 2008年 / 86卷 / 19-20期
关键词：
finite elements; boundary elements; coupled analysis; iterative procedures; optimised relaxation parameter; time-domain dynamics;
D O I：
10.1016/j.compstruc.2008.04.001
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In the present work, an optimised FEM-BEM iterative coupling algorithm is presented, regarding time-domain dynamic applications. The methodology allows non-linear behaviour to be easily considered within sub-domains modelled by the FEM, as well as independent time discretizations to be considered within each sub-domain. By minimizing a square error functional, an optimised expression is obtained to evaluate the iterative coupling relaxation parameter, increasing the efficiency of the FEM-BEM coupled analysis directly accomplished in the time-domain. At the end of the paper, numerical applications are presented, illustrating the potentialities of the proposed methodology. (C) 2008 Elsevier Ltd. All rights reserved.
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页码：1839 / 1844
页数：6
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