公开(公告)号：US20240351699A1

公开(公告)日：2024-10-24

申请号：US18637871

申请日：2024-04-17

Applicant: SAFRAN NACELLES

Inventor： Bertrand Léon Marie DESJOYEAUX ,  Mathieu François Eric PREAU ,  Marc VERSAEVEL ,  Pierre Charles CARUEL ,  Geneviève CLUZEAU

IPC: B64D33/02

CPC classification number: B64D33/02 ,  B64D2033/0206

Abstract: An acoustic panel for an aircraft turbomachine has a sandwich structure. The sandwich structure includes a cell structure with a plurality of acoustic cells, a perforated acoustic structure, and a porous acoustic structure attached to the perforated acoustic structure. The perforated acoustic structure is arranged between the cell structure and the porous acoustic structure. The porous acoustic structure is multi-layered and has a first woven textile layer and a second woven textile layer connected to the first layer. The second layer is arranged between the first layer and the perforated acoustic structure.