The invention discloses a novel flapping wing propelling device and a working process. The device comprises a flapping wing body, a pair of tail sealing plates are hinged to the tail edge of the flapping wing body, the upper surface and the lower surface of the tail of the flapping wing body are each provided with a step, a step surface is formed, a plurality of telescopic rods are installed between the tail sealing plates and the step surfaces, and the telescopic rod acts to control opening and closing of the tail sealing plate. The tail sealing plate can be adaptively adjusted according to the movement position of the flapping wing, on one hand, the pressure difference between the upper surface and the lower surface of the flapping wing is greatly increased, and the corresponding lift force is obviously increased, so that the component force of the lift force increased in the vertical direction in the horizontal direction is also increased, and the propulsion characteristic of the flapping wing is improved; and on the other hand, due to the existence of the tail sealing plate, the flow field characteristics around and at the tail part of the flapping wing are improved, the flow separation at the tail edge of the flapping wing is gradually slowed down, the energy dissipation is reduced, and the input power of the system is greatly reduced.

    一种新型扑翼推进装置及工作过程,包括扑翼主体,所述扑翼主体的尾缘处铰接有一对尾封板,扑翼主体的尾部上表面和下表面分别设置有一个台阶,并形成台阶面,尾封板与台阶面之间安装有多个收缩杆,收缩杆的动作控制尾封板的打开与关闭。该尾封板可根据扑翼的运动位置进行自适应调节,尾封板的存在一方面使得扑翼上下表面的压力差大幅增加,对应的升力亦得以明显增大,由于扑翼在运动过程中存在水平方向的攻角,因此垂直方向增加的升力在水平方向的分力亦得以增大,因此扑翼的推进特性有所改善;另一方面,尾封板的存在使得扑翼周围及尾部的流场特性得以改善,扑翼尾缘的流动分离得以逐步减缓,能量耗散有所降低,系统输入功率得以大幅降低。


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    Title :

    Novel flapping wing propelling device and working process


    Additional title:

    一种新型扑翼推进装置及工作过程


    Contributors:
    LI YONGCHENG (author) / CHEN JIJUN (author) / PAN ZIYING (author)

    Publication date :

    2021-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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