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

被引：96

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.

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页码：225 / 237

页数：13

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