A MIXED DISPLACEMENT-BASED FINITE-ELEMENT FORMULATION FOR ACOUSTIC FLUID-STRUCTURE INTERACTION

被引：92
|
作者：
BATHE, KJ
NITIKITPAIBOON, C
WANG, X
机构：
[1] Massachusetts Institute of Technology, Cambridge
来源：
COMPUTERS & STRUCTURES | 1995年 / 56卷 / 2-3期
关键词：
D O I：
10.1016/0045-7949(95)00017-B
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The solutions of fluid-structure interaction problems, using displacement-based finite element formulations for acoustic fluids, may contain spurious non-zero frequencies. To remove this deficiency, we present here a new formulation based on a three-field discretization using displacements, pressure and a ''vorticity moment'' as variables with an appropriate treatment of the boundary conditions. We propose specific finite element discretizations and give the numerical results of various example problems.
引用
收藏
页码：225 / 237
页数：13
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