公开(公告)号：US20190366587A1

公开(公告)日：2019-12-05

申请号：US16421825

申请日：2019-05-24

Applicant: Airbus Operations SAS

Inventor： Denis BROSSARD ,  Sébastien GOHIER ,  Jean-Claude BARBAUD ,  Gael PERENNESSE

IPC: B29B9/14 ,  B29B9/10

Abstract: A toolage for manufacturing a tubular preform of fibers comprising a mold which has a deposition surface on which are superposed laps of fibers and a compacting device configured to cap the mold. The compacting device comprises first and second rings, at least one seal-tight flexible conduit linked to the first and second rings and at least one rigid link element linking the first and second rings. Such a compacting device makes it possible to greatly reduce the time for it to be installed, which makes it possible to reduce the duration of the compacting cycles.

公开(公告)号：US20200342843A1

公开(公告)日：2020-10-29

申请号：US16859138

申请日：2020-04-27

Applicant: Airbus Operations SAS

Inventor： Denis BROSSARD ,  Florian RAVISE

IPC: G10K11/168 ,  F02K1/34 ,  B64D27/18

Abstract: A method for manufacturing an acoustic absorption structure including an acoustically resistive layer, a cellular structure, a reflective layer and a plurality of acoustic elements positioned in cavities produced in the cellular structure. This method comprises steps of depositing fiber plies on a contact surface of the cellular structure, fitting a flexible jacket which covers a stack composed of the acoustically resistive layer, the cellular structure and the fiber plies, which is tightly linked with the deposition surface all around the stack, consolidating the fiber plies to form the reflective layer and the fixing thereof on the cellular structure, with a caul plate being inserted between the fiber plies and the flexible jacket during the consolidation step.

公开(公告)号：US20200164998A1

公开(公告)日：2020-05-28

申请号：US16695375

申请日：2019-11-26

Applicant: Airbus Operations SAS

Inventor： Claire MAFFRE ,  Jérôme GAILLARDO ,  Lionel CZAPLA ,  Florian RAVISE ,  Laurent CALIMAN ,  Laurent CAZEAUX ,  Antoine COUSIN ,  Denis BROSSARD

IPC: F02K1/34 ,  F02C7/24 ,  G10K11/172 ,  G10K11/162

Abstract: An acoustic absorption structure comprising a plurality of resonators. Each resonator comprises a first chamber which has a first mouthpiece delimited by an edge pressed against an inner surface of a porous zone of a skin so that the first chamber and the skin delimit a first cavity, a second chamber, in which is positioned the first chamber, which delimits, with the first chamber, a second cavity, at least one acoustic orifice passing through the first chamber, at least one drainage orifice passing through the first chamber and at least one drainage hole passing the second chamber, each drainage orifice and each drainage hole being configured to limit an accumulation of fluid in the resonator. Also, an aircraft propulsive assembly or an aircraft comprising the acoustic absorption structure are provided.