2021
DOI: 10.3397/in-2021-3986
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Study on target energy transfer of 3D acoustic cavity - plate coupling system with the membrane nonlinear energy sink

Abstract: The target energy transfer (TET) between a membrane nonlinear energy sink (NES) and the acoustic medium inside a rectangular cavity is studied. The acoustic medium is interacted with a plate and multi-order modes coupling of the 2 structure is considered. Based on the modal expansion approach, with Green's function, Helmholtz equation and the boundary conditions of the acoustic medium and the plate, the coupling coefficient matrix of the mode of 2 structures is derived. The equations of the membrane NES, mult… Show more

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