The acoustic liner comprises a perforated plate, a bottom plate and a honeycomb cavity located between the perforated plate and the bottom plate and further comprises a resonance structure located in the honeycomb cavity, the resonance structure comprises a mounting plate, an elastic support and a rigid plate, the mounting plate is arranged on the inner wall face of the honeycomb cavity and extends into the cavity, one side of the elastic support is arranged at the radial inner end of the mounting plate, and the other side of the elastic support is arranged on the rigid plate. And the other side of the elastic support is connected with the rigid plate, so that the rigid plate vibrates by means of the elastic support. The acoustic liner has a good sound absorption effect. The invention further provides an aero-engine.
提供一种声衬,包括穿孔板、底板和位于穿孔板和底板之间的蜂窝腔,还包括位于蜂窝腔内的共振结构,该结构包括安装板、弹性支承和刚性板,安装板设置自蜂窝腔的内壁面向腔内延伸,弹性支承的一侧设置在安装板的径向内端,另一侧与刚性板连接,以使所述刚性板借助所述弹性支承而振动。上述声衬具有较佳的吸声效果。还提供一种航空发动机。
Acoustic liner and aero-engine
声衬、航空发动机
30.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
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