The invention discloses a multi-clamping-position folding winglet and a working method thereof. The multi-clamping-position folding winglet is arranged at the tail end of a wing body in the wingspan direction and is provided with a ground clamping position, a cruising flight clamping position and at least one low-speed flight clamping position, the multi-clamping-position folding winglet comprisesa winglet body and a driving part, the winglet body is rotationally connected with the tail end of the wing body, and the driving part can drive the winglet body to rotate in order to make the winglet body switched between different clamping positions; and the included angle between the chord plane of the winglet body and the vertical plane of the ground plane is defined as an inclination angle,and the inclination angle of the winglet body at the low-speed flight clamping position is larger than that at the ground clamping position and smaller than that at the cruise flight clamping position. In the flight process, different aerodynamic requirements under high-speed cruising and low-speed high attack angles can be met by switching different clamping positions, compared with cruising flight clamping positions, flow separation on winglets is restrained through the low-speed flight clamping positions, and the purposes of increasing lift and reducing drag under the low-speed working condition are achieved.

    本发明公开了一种多卡位折叠翼稍小翼及其工作方法。多卡位折叠翼稍小翼设置于机翼主体的翼展方向的末端,其具有地面卡位、巡航飞行卡位和至少一个低速飞行卡位,多卡位折叠翼稍小翼包括小翼本体和驱动件,小翼本体与机翼主体的末端转动连接,驱动件能驱动小翼本体绕转轴转动,以使小翼本体在不同卡位之间切换;小翼本体的弦平面与地平面的垂直面之间的夹角定义为倾斜角,小翼本体在低速飞行卡位时的倾斜角大于在地面卡位时的倾斜角,小于在巡航飞行卡位时的倾斜角。本发明在飞行过程中通过切换不同卡位可以满足高速巡航和低速大迎角下的不同气动需求,低速飞行卡位相比巡航飞行卡位抑制了翼稍小翼上的流动分离,实现低速工况下增升减阻的目的。


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    Titel :

    Multi-clamping-position folding winglet and working method thereof


    Weitere Titelangaben:

    多卡位折叠翼稍小翼及其工作方法


    Beteiligte:
    CUI ZHENG (Autor:in) / WANG QIFENG (Autor:in) / ZHANG XINTAN (Autor:in) / ZHANG WENSHENG (Autor:in) / LU DAIXIAO (Autor:in) / ZOU CANDONG (Autor:in)

    Erscheinungsdatum :

    2021-01-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge



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