title: 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.
authors.affiliation: CMAP, CNRS/Ecole Polytechnique, UMR7641, Palaiseau Cedex, France. jeanphilippe.groby@fys.kuleuven.be
authors.forename: J-P
authors.initials: JP
authors.lastname: Groby
authors.forename: A
authors.initials: A
authors.lastname: Wirgin
authors.forename: L
authors.initials: L
authors.lastname: De Ryck
authors.forename: W
authors.initials: W
authors.lastname: Lauriks
authors.forename: R P
authors.initials: RP
authors.lastname: Gilbert
authors.forename: Y S
authors.initials: YS
authors.lastname: Xu