公开(公告)号：US20240253802A1

公开(公告)日：2024-08-01

申请号：US18425100

申请日：2024-01-29

Applicant: Airbus SAS ,  Airbus Operations SAS

Inventor： François PONS ,  Laurent CAZEAUX ,  Arnulfo CARAZO MENDEZ ,  Florent MERCAT ,  Alexandre BELLANGER ,  Laurent PRESSEQ ,  Maxime GAUTHIER ,  Manuel TEIGNE ,  Philippe WESSEL ,  Joelle BONNEFONT

IPC: B64D33/02

CPC classification number: B64D33/02 ,  B64D2033/0206

Abstract: An alveolar structure of an acoustic damping panel which is configured for damping at least one sound wave at a sound frequency, wherein the alveolar structure comprises at least one partition provided with at least one cavity configured such that the partition vibrates at a vibrational frequency substantially equal to the sound frequency of the sound wave to be damped. Also a method for producing such an alveolar structure, an acoustic damping panel comprising at least one such alveolar structure, and an aircraft comprising at least one such acoustic damping panel.

公开(公告)号：US20240253803A1

公开(公告)日：2024-08-01

申请号：US18425129

申请日：2024-01-29

Applicant: Airbus SAS ,  Airbus Operations SAS

Inventor： François PONS ,  Laurent CAZEAUX ,  Arnulfo CARAZO MENDEZ ,  Florent MERCAT ,  Alexandre BELLANGER ,  Laurent PRESSEQ ,  Maxime GAUTHIER ,  Manuel TEIGNE ,  Philippe WESSEL ,  Joelle BONNEFONT

IPC: B64D33/02

CPC classification number: B64D33/02 ,  B64D2033/0206

Abstract: An alveolar structure of an acoustic damping panel which is configured for damping at least one sound wave of a sound frequency, wherein the alveolar structure comprises at least one attached element, separate from partitions, and configured for vibrating at a frequency substantially equal to the sound frequency of the sound wave to be damped. Also a method for producing such an alveolar structure, an acoustic damping panel comprising at least one such alveolar structure, and an aircraft comprising at least one such acoustic damping panel.

公开(公告)号：US20230365246A1

公开(公告)日：2023-11-16

申请号：US18311337

申请日：2023-05-03

Applicant: Airbus Operations SAS

Inventor： Manuel TEIGNE ,  Maxime GAUTHIER

IPC: B64C1/40 ,  F02K1/34 ,  B32B37/02 ,  B32B37/12 ,  B32B7/12 ,  B32B3/12

CPC classification number: B64C1/40 ,  B64D33/06 ,  B32B37/02 ,  B32B37/12 ,  B32B7/12 ,  B32B3/12 ,  G10K11/168

Abstract: An acoustic panel for an aircraft providing noise attenuation over a wide frequency band by combining two resonators, and acoustic panel manufacturing method. The acoustic panel includes a rear skin, a cellular structure, an intermediate layer including perforations, a cellular structure, a cellular structure and a resistive skin including perforations. The acoustic panel combines quarter-wave resonators with Helmholtz resonators to provide noise attenuation over a wide frequency range.

公开(公告)号：US20220379579A1

公开(公告)日：2022-12-01

申请号：US17824102

申请日：2022-05-25

Applicant: Airbus Operations SAS

Inventor： Jérôme COLMAGRO ,  Charles CARIOU ,  Florian RAVISE ,  Maxime GAUTHIER

IPC: B32B3/12 ,  B32B3/20 ,  B29C53/40

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.