multilayer panel for interior noise reduction of aircraft

摘要

Panel (10) for soundproofing aircraft interiors comprising a first and a second layer (11, 12) and an intermediate layer (16) of damping material placed between the first and second layer (11, 12) along a neutral axis (N) of the soundproofing panel (10). The first and the second layer (11, 12) each comprising a structural layer (14) and a surface layer (13) placed on the opposite side to the intermediate layer (16) and connected thereto, adhering continuously by means of an adhesive layer (15), the intermediate layer (16) extends for the entire area of the panel (10) and is connected to the structural layers (14) of the first and second layer (11, 12). The intermediate layer (16) comprises a polymer foam material having a uniform thickness less than 2 mm and weight of less than 1.2 kg/m2.