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Acoustic response of a rigid-frame porous medium plate with a periodic set of inclusions

Abstract : The acoustic response of a rigid-frame porous plate with a periodic set of inclusions is investigated by a multipole method. The acoustic properties, in particular, the absorption, of such a structure are then derived and studied. Numerical results together with a modal analysis show that the addition of a periodic set of high-contrast inclusions leads to the excitation of the modes of the plate and to a large increase in the acoustic absorption.
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https://hal.archives-ouvertes.fr/hal-00461932
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Submitted on : Sunday, March 7, 2010 - 3:20:03 PM
Last modification on : Thursday, March 5, 2020 - 6:25:13 PM

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Jean-Philippe Groby, Armand Wirgin, L. de Ryck, W. Lauriks, R. P. Gilbert, et al.. Acoustic response of a rigid-frame porous medium plate with a periodic set of inclusions. Journal of the Acoustical Society of America, Acoustical Society of America, 2009, 126 (2), pp.685-693. ⟨10.1121/1.3158936⟩. ⟨hal-00461932⟩

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