The invention provides a bird-imitating flapping-wing aircraft. The bird-imitating flapping-wing aircraft comprises a mechanical claw, an empennage mechanism, a driving structure, a rack mechanism, two torsion mechanisms, two flapping wings and two main wing deformation mechanisms. According to the invention, the attack angle of the flapping wing is changed by adopting the torsion mechanism, and the upward flapping resistance is smaller than the downward flapping resistance in aerodynamics. When the flapping wing flaps upwards, the included angle of two connecting rods in the main wing deformation mechanism is 150 degrees, the area of the main wing is minimum, and the wind area is minimum, so that the negative lift force generated in the upward flapping process is reduced; when the flapping wing flaps downwards, the included angle of the two connecting rods in the main wing deformation mechanism is 90 degrees, the area of the main wing is the largest, the wind area is the largest, and the lift force generated in the downward flapping process is increased. In addition, deflection of the empennage is controlled by the empennage structure, so that the flight attitude of the ornithopter is more convenient to operate and control. In addition, the bird-imitating flapping-wing aircraft provided by the invention is simple and compact in structure, and can realize completely symmetrical flapping-wing movement.

    本发明提供一种仿鸟扑翼飞行器,包括机械爪、尾翼机构、驱动结构、机架机构、两个扭转机构、两个扑动翼和两个主翼变形机构。本发明采用扭转机构来改变扑翼的迎角,在空气动力学上,符合上扑阻力小于下扑阻力。扑动翼上扑时,主翼变形机构中两连杆夹角为150°,主翼面积最小,受风面积最小,从而降低上扑过程中产生的负升力;扑动翼下扑时,主翼变形机构中两连杆夹角为90°,主翼面积最大,受风面积最大,增加下扑过程中产生的升力。并且,利用尾翼结构控制尾翼的偏转,使扑翼飞行器飞行姿态更利于操作和控制。此外本发明提供的仿鸟扑翼飞行器,结构简单紧密,可以实现完全对称的扑翼运动。


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    Title :

    Bird-imitating ornithopter


    Additional title:

    一种仿鸟扑翼飞行器


    Contributors:
    LI WANGPENG (author) / CAO YUANPENG (author) / XU JIE (author) / HUANG TENGHAO (author) / WU YUJIAO (author)

    Publication date :

    2024-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64U



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