-
公开(公告)号：US11987029B2
公开(公告)日：2024-05-21
申请号：US17824102
申请日：2022-05-25
Applicant: Airbus Operations SAS
Inventor： Jérôme Colmagro , Charles Cariou , Florian Ravise , Maxime Gauthier
CPC classification number: B32B3/12 , B32B3/20 , B32B37/146 , B32B38/0004 , B32B38/0012 , B32B2250/03 , B32B2305/024 , B32B2307/102 , B32B2605/18 , B64D29/00
Abstract: A method for manufacturing a cellular structure having first and second faces, rows of cells each alternatingly having first cells, which are open in the direction of the first face, second cells, which are open in the direction of the second face, and also third cells formed between each row of cells, each row of cells comprising first and second strips of material placed against one another. The first and second strips of material are shaped by bending. By contrast to plastic deformation, shaping by bending makes it possible to expand the choice of materials and thicknesses for the first and second strips of material. An advantageous cellular structure is thus obtained as well as an acoustic absorption coating comprising such a cellular structure.
-
公开(公告)号：US11268478B2
公开(公告)日：2022-03-08
申请号：US16281617
申请日：2019-02-21
Applicant: Airbus Operations SAS
Inventor： Charles Cariou
IPC: F02K1/82 , F02C7/045 , B64D33/02 , F02C7/24 , G10K11/172
Abstract: A sound-proofing covering comprising a cellular structure, each cell of which comprises a duct extending at least between the first face and the second face of the covering. The duct is formed between an outer wall and an inner wall of the cell and has a restriction of its cross section. The outer and inner walls have rounded forms, without sharp edges. The cell comprises a cavity in which the duct emerges. Thus, each cell forms a resonator comprising a neck formed by the duct and the cavity. Each cell is conformed such that the duct and the cavity are formed on either side of the inner wall. Such a covering is particularly suitable for reducing acoustic waves in aircraft engine plant nacelles, particularly in the low frequencies.
-
公开(公告)号：US12083778B2
公开(公告)日：2024-09-10
申请号：US17624458
申请日：2020-06-16
Applicant: Airbus Operations SAS
Inventor： Charles Cariou
CPC classification number: B32B3/18 , B32B3/12 , F02C7/045 , F02K1/827 , B32B2307/102 , B32B2605/18 , B64D2033/0206
Abstract: A soundproofing coating with a cellular structure having several structures connected in a transverse direction, each formed by connecting a first longitudinal strip with a second longitudinal strip. Each structure has, successively in the longitudinal direction, 1) a first cavity, the cross-section of which narrows gradually in the thickness of the coating until it closes, 2) a first connection of two walls, respectively of the first strip and the second strip, in contact with each other over part of the thickness of the coating, which provides a passage between the first cavity and a second cavity that thus form a Helmholtz resonator, 3) the second cavity, the cross-section of which gradually increases in the thickness of the coating and which is closed by a closing sheet, and 4) a second connection of two walls.
-
-
Search Results
3
records
(took 0.01 seconds)
