Abstract: An acoustically absorbent cell for an acoustic panel, comprising a layer with a porous matrix incorporating a plurality of acoustic resonators between a first face and a second face of the porous matrix is described. The resonators are ordered so as to form at least two substantially parallel rows each comprising at least two resonators and extending along the first and second faces.
Type:
Grant
Filed:
August 29, 2014
Date of Patent:
November 14, 2017
Assignees:
LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DU MAINE, SUPMECA
Abstract: The invention relates to an acoustically absorbent cell (22, 48) for an acoustic panel, comprising a layer (32) with a porous matrix incorporating a plurality of acoustic resonators (A1-A4, B1-B6) between a first face (30, 54) and a second face (28, 56) of the porous matrix (32). According to the invention, the resonators (A1-A4, B1-B6) are for example ordered so as to form at least two substantially parallel rows (24, 26, 50, 52) each comprising at least two resonators and extending along the first and second faces.
Type:
Application
Filed:
August 29, 2014
Publication date:
July 21, 2016
Applicants:
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DU MAINE, SUPMECA