公开(公告)号：US20200265821A1

公开(公告)日：2020-08-20

申请号：US16789065

申请日：2020-02-12

Applicant: Airbus Operations SAS

Inventor： Theo RICCOBENE ,  Franck DOBIGEON

IPC: G10K11/168

Abstract: A method for producing an acoustic absorption structure comprising an acoustically resistive structure, an alveolar structure, a reflective layer and a plurality of acoustic elements positioned in the alveolar structure, against the acoustically resistive structure, the method comprising forming a skin forming enclosures of the acoustic elements by depositing a resin on a mold having a base on which are positioned projecting forms shaped like the cavities delimited by the enclosures of the acoustic elements, placing the mold supporting the resin together with the alveolar structure, the resin being intercalated between the mold and the alveolar structure, polymerizing the resin to simultaneously obtain a hardening of the skin and also the joint between the skin and the alveolar structure, and fitting the acoustically resistive structure and the reflective layer.

公开(公告)号：US20200013385A1

公开(公告)日：2020-01-09

申请号：US16460714

申请日：2019-07-02

Applicant: Airbus Operations SAS

Inventor： Theo RICCOBENE ,  Hassan MENAY ,  Jacques LALANE ,  Alain PORTE

IPC: G10K11/168 ,  B32B3/12 ,  B32B3/26 ,  B32B7/12 ,  B32B27/06

Abstract: A production method for an acoustic panel comprising a step of producing a composite structure, a step of providing inserts, wherein each insert comprises a nozzle formed as a hollow cylinder with a through-bore and a cap comprising a base formed as a cylinder and a cover formed as a cone, and wherein the base is accommodated in the bore, a step of positioning the inserts in the composite structure by penetration of the cover into the composite structure so that the bore opens at one side and the other of the composite structure, a step of polymerizing during which the composite structure with the inserts is polymerized, a step of removing the caps, a first step of fixing a honeycomb structure to the polymerized composite structure, and a second step of fixing a rear skin to the honeycomb structure.