FEM/wideband FMBEM coupling for structural-acoustic design sensitivity analysis

被引：32

作者：

Chen, Leilei ^{[1
]}

Zheng, Changjun ^{[1
]}

Chen, Haibo ^{[1
]}

机构：

[1] Univ Sci & Technol China, GAS Key Lab Mech Behav & Design Mat, Dept Modern Mech, Hefei 230026, Anhui, Peoples R China

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2014年 / 276卷

基金：

中国博士后科学基金; 高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

Fluid-structure interaction; FEM; Wideband FMBEM; Design sensitivity analysis; Direct differentiation method; BOUNDARY-ELEMENT METHOD; FAST MULTIPOLE METHOD; FAST DIRECT SOLVER; OPTIMIZATION; NOISE; SCATTERING; FEM; ALGORITHM; EQUATIONS;

D O I：

10.1016/j.cma.2014.03.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A coupling algorithm based on the finite element method (FEM) and the wideband fast multipole boundary element method (wideband FMBEM) is proposed for acoustic fluid-structure interaction simulation and structural-acoustic design sensitivity analysis by using the direct differentiation method. The wideband fast multipole method (FMM), which is developed by combining the original FMM and the diagonal form FMM, is used to accelerate the calculation of the matrix vector products in boundary element analysis. The iterative solver generalized minimal residual method is applied to accelerate the calculation of the solution to the linear system of equations. The FEM/wideband FMBEM algorithm makes it possible to predict the effects of arbitrarily shaped vibrating structures on the sound field numerically. Numerical examples are presented to demonstrate the validity and efficiency of the proposed algorithm. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1 / 19

页数：19

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