Dynamic fluid-structure interaction analysis using boundary finite element method-finite element method

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作者：
机构：
[1] Fan, S.C.
[2] Li, S.M.
[3] Yu, G.Y.
来源：
Fan, S.C. (cfansc@ntu.edu.sg) | 1600年 / American Society of Mechanical Engineers卷 / 72期
关键词：
Acoustic wave scattering - Boundary element method - Computer simulation - Continuum mechanics - Dynamic response - Elastic moduli - Finite element method - Interfaces (materials) - Mathematical models - Numerical analysis - Structural analysis;
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摘要：
In this paper, the boundary finite element method (BFEM) is applied to dynamic fluid-structure interaction problems. The BFEM is employed to model the infinite fluid medium, while the structure is modeled by the finite element method (FEM). The relationship between the fluid pressure and the fluid velocity corresponding to the scattered wave is derived from the acoustic modeling. The BFEM is suitable for both finite and infinite domains, and it has advantages over other numerical methods. The resulting system of equations is symmetric and has no singularity problems. Two numerical examples are presented to validate the accuracy and efficiency of BFEM-FEM coupling for fluid-structure interaction problems. © 2005 by ASME.
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