The invention relates to an acoustic panel providing noise attenuation over a wide frequency band for an aircraft by combining two resonators, and a method of manufacturing the acoustic panel. The acoustic panel (1) comprises a rear skin (2), a unit structure (3), an intermediate layer (4) comprising a plurality of perforations (40), a unit structure (5), a unit structure (6) and a durable skin (7) comprising a plurality of perforations (70). The acoustic panel (1) combines quarter wavelength resonators with Helmholtz resonators to provide noise attenuation over a wide frequency range.
本发明涉及通过组合两个共振器用于飞机的提供宽频带上的噪声衰减的声学面板,以及声学面板制造方法。所述声学面板(1)包括后部表层(2)、单元结构(3)、包括多个穿孔(40)的中间层(4)、单元结构(5)、单元结构(6)以及包括多个穿孔(70)的耐用表层(7)。所述声学面板(1)将四分之一波长共振器与亥姆霍兹共振器组合以提供宽频范围上的噪声衰减。
Acoustic panel for aircraft and acoustic panel manufacturing method
用于飞机的声学面板以及声学面板制造方法
2023-11-17
Patent
Electronic Resource
Chinese
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