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：US20230312121A1

公开(公告)日：2023-10-05

申请号：US18191185

申请日：2023-03-28

Applicant: Airbus Operations SAS

Inventor： Manuel TEIGNE ,  Florian RAVISE ,  Laurent CALIMAN

IPC: B64D33/02 ,  F02K1/34 ,  G10K11/172

CPC classification number: B64D33/02 ,  B64D33/06 ,  G10K11/172 ,  B64D2033/0206

Abstract: An acoustic panel including first and second cellular structures, the first cellular structure including a set-back portion to form a recess dimensioned to accommodate the second cellular structure such that first faces of the first and second cellular structures, in contact with a first, acoustically resistive layer, are coplanar and that first edge faces of the first and second cellular structures are coplanar when the second edge face of the second cellular structure is in contact with the set-back portion. By virtue of the set-back portion, the first and second cellular structures are positioned correctly with respect to one another, thus contributing to an optimization of the acoustic treatment.