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。
Pneumatic structure of wingtip winglet of bionic eagle wing
一种仿生鹰翼翼梢小翼气动结构
2023-03-28
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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