Author(s)

L. L. Chen, C. J. Zheng&H. B. Chen

Abstract

A coupling algorithm based on the finite element method and the wideband fast multipole boundary elementmethod (FEM/wideband FMBEM) is proposed for the simulation of fluid-structure interaction and structural acoustic sensitivity analysis using the direct differentiation method. The iterative solver GMRES is applied to accelerate the solution of 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. Keywords: fluid-structure interaction, FEM, wideband FMBEM, design sensitivity analysis, direct differentiation method.

Keywords

fluid-structure interaction, FEM, wideband FMBEM, design sensitivity analysis, direct differentiation method