The invention discloses a stealth structure and method for an air inlet channel of an aircraft. The structure comprises a stealth grating and a plasma generation assembly. The invisible grid is fixedly mounted at an air inlet of the air inlet duct of the aircraft; the plasma generation assembly is arranged in a grid hole of the invisible grid; the plasma generation assembly comprises a negative electrode bar and a positive electrode bar, and the negative electrode bar and the positive electrode bar are distributed in parallel. The method comprises the following steps: starting the plasma generator, electrifying the negative electrode bar and the positive electrode bar, generating high-energy plasma between the two electrode bars, and mixing the high-energy plasma with high-speed free incoming flow to form high-energy plasma airflow; the high-energy plasma airflow formed in each grating hole can be further fused and overlapped to form high-energy plasma clusters distributed in the stealth grating and the air inlet channel, and stealth of the air inlet channel is achieved through the high-energy plasma clusters; the intensity and the size of high-energy plasmas generated between the negative electrode bar and the positive electrode bar are adjusted by adjusting the voltage and the frequency of the plasma generator, so that the stealth effect of the air inlet channel is changed.

    一种飞行器进气道隐身结构及方法,结构包括隐身格栅和等离子体发生组件;隐身格栅固定安装在飞行器进气道的进气口处;等离子体发生组件设在隐身格栅的格栅孔内;等离子体发生组件包括阴电极棒和阳电极棒,阴电极棒和阳电极棒平行分布。方法为:启动等离子体发生器,阴电极棒和阳电极棒通电,两电极棒之间产生高能等离子体,与高速自由来流混合形成高能等离子体气流;每个格栅孔内形成的高能等离子体气流会进一步相互融合叠加,形成分布于隐身格栅及进气道内部的高能等离子体团,通过高能等离子体团实现进气道隐身;通过调整等离子体发生器的电压和频率,对阴电极棒和阳电极棒之间产生高能等离子体的强度和大小进行调节,用以改变进气道隐身效果。


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    Title :

    Aircraft air inlet channel stealth structure and method


    Additional title:

    一种飞行器进气道隐身结构及方法


    Contributors:
    WANG JIANMING (author) / XIA XINYU (author)

    Publication date :

    2024-12-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64U



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