A Meshless Approach for 2D Vibro-Acoustic Problems
Keywords:
vibroacoustics, meshless methods, dispersion error, medium frequenciesAbstract
The Element-Free Galerkin method seems to be suitable to obtain very accurate results for acoustic uncoupled problem. For vibro-acoustic problems using a coupled finite element - element-free Galerkin formulation, it has already been shown that the major part of the error on the discretisation is due to the finite element discretisation of the structure. Thus, in this paper, we propose to improve the vibroacoustic simulation by coupling an EFG method in the fluid to a partition of unity method in the solid. The paper shows that, for this latter, major difficulties have to be solved: the numerical quadrature and the continuity of the displacements for non planar shells.
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