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    • 2. 发明授权
    • Acoustic panel
    • 声学面板
    • US07971684B2
    • 2011-07-05
    • US12528017
    • 2008-02-19
    • Fabrice GantieBernard DuprieuValerie FrustieAlain PorteThomas GillesJacques Lalane
    • Fabrice GantieBernard DuprieuValerie FrustieAlain PorteThomas GillesJacques Lalane
    • E04B1/82
    • G10K11/172F02C7/24F02K1/827G10K11/168
    • A panel for acoustic treatment connected to a surface of an aircraft, includes—from the outside to the inside—an acoustically resistive porous layer, at least one alveolar structure, and a reflective or impermeable layer, whereby the acoustically resistive porous layer includes—at the outside surface that can be in contact with the aerodynamic flows—one sheet or piece of sheet metal including open zones (14) that allow sound waves to pass and filled zones (16) that do not allow sound waves to pass, characterized in that the sheet or piece of sheet metal of the acoustically resistive layer includes sets of microperforations (18), whereby each set of microperforations forms an open zone (14), the sets of microperforations being separated from one another by at least one series of bands separated by filled zones (16).
    • 连接到飞行器表面的用于声学处理的面板包括从外部到内部的声阻多孔层,至少一个肺泡结构以及反射或不可渗透层,其中所述声阻多孔层包括 可以与气动流动接触的外表面 - 包括允许声波通过并且不允许声波通过的区域(16)的开放区域(14)的一片或片状金属片,其特征在于, 阻声层的片状物或片状物包括一组微穿孔(18),由此每组微穿孔形成开放区域(14),所述微穿孔组彼此分开至少一系列带分离 通过填充区(16)。