The invention discloses a bionic eagle wing wingtip winglet pneumatic structure which comprises a bionic eagle wing wingtip winglet, the bionic eagle wing wingtip winglet is installed at the wingtip end of a wing, the bionic eagle wing wingtip winglet comprises a low-resistance wingtip transition section and a wing, the low-resistance wingtip transition section is connected with the wingtip end of the wing, and the wing is connected with the low-resistance wingtip transition section. The wing is connected with the low-resistance wingtip transition section, the wing is of a bent upper reverse structure, the chord length of the root of the low-resistance wingtip transition section is set to be W1, the chord length of the tip of the low-resistance wingtip transition section is set to be W2, and W2/W1 is controlled to be 0.6-1. The bionic eagle wing winglet can reduce induced resistance during cruising, increase the lift-drag ratio of the whole aircraft, improve the voyage of the aircraft and increase the effective load of the aircraft.

    本发明公开了一种仿生鹰翼翼梢小翼气动结构,包括仿生鹰翼翼梢小翼,所述仿生鹰翼翼梢小翼安装于机翼翼梢端部,所述仿生鹰翼翼梢小翼包括低阻翼尖过渡段和羽翼,所述低阻翼尖过渡段连接机翼翼梢端部,所述羽翼连接低阻翼尖过渡段,所述羽翼呈弯曲上反结构,所述低阻翼尖过渡段的根部弦长设为W1,梢部弦长设为W2,其中W2/W1控制在0.6~1。本结构提供的仿生鹰翼翼梢小翼可以降低巡航时的诱导阻力,增加全机升阻比,提升飞机的航程及增加飞机的有效载荷。


    Access

    Download


    Export, share and cite



    Title :

    Pneumatic structure of wingtip winglet of bionic eagle wing


    Additional title:

    一种仿生鹰翼翼梢小翼气动结构


    Contributors:
    WANG JIMING (author) / YAO YUAN (author) / YANG WANLI (author) / DANG TIEHONG (author) / DONG MING (author)

    Publication date :

    2023-03-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Effect of Slotted Winglet on the Wingtip Vortex

    Deslich, Joshua / Gunasekaran, Sidaard | AIAA | 2019


    Comparative Study Aerodynamics Effects of Wingtip Fence Winglet on Fix Wing Airfoil Eppler E562

    Setyo Hariyadi Suranto Putro / Sutardi Sutardi / Wawan Aries Widodo et al. | DOAJ | 2021

    Free access

    Effect of Winglet Serration Geometry on the Wingtip Vortex

    Gehlert, Pascal / Sabnis, Kshitij / Babinsky, Holger | AIAA | 2022


    The Bionic Wing with Winglet in Near Space Aerodynamic Analysis

    Xin, Hua ;Ji, Zhang ;Lei, Ming | Trans Tech Publications | 2014


    Optimization of flapping wing mechanism of bionic eagle

    Huang, Mingyang | SAGE Publications | 2019