The invention discloses a high-altitude long-endurance unmanned aerial vehicle wing suitable for single-wing layout and relates to the technical field of aerospace. A trapezoidal wing with a kink in the plane shape, the sweepback angle of the front edge is 0-10 degrees, the aspect ratio is 16-20, the kink position is located at the half-span length of 24%-27% bH, and the chord length of the kink position is 0.81-0.82 cA. According to the invention, the surface flow of the wing does not form transverse flow transition, so that the wing has high lift-drag ratio; the accommodating requirements ofan undercarriage and the folding and unfolding mechanism of the undercarriage can be met; the kink design also has the effect of controlling the influence range of wing body interference flow spanwise; the wing sections within the spanwise kink are provided with the upper reverse angles, and the wing sections outside the spanwise kink are not provided with the upper reverse angles, so that on onehand, the height from the wingtip to the ground can be increased, the wingtip is prevented from mopping the ground after the wing is deformed, and on the other hand, the transverse stability can be improved to a certain extent.
本发明公开了一种适用于下单翼布局的高空长航时无人机机翼,涉及航空航天技术领域,机翼平面形状为带kink的梯形机翼,前缘后掠角为0°~10°,展弦比为16~20,kink位置位于半展长24%~27%b,kink处弦长为0.81~0.82c。本发明使机翼表面流动不至于形成横流转捩,保证机翼具有高升阻比;还可以满足起落架及其收放机构的容纳需求;kink设计还具有控制翼身干扰流动展向影响范围的作用;展向kink以内的机翼段带有上反角,而展向kink以外的机翼段无上反角,该设计一方面可以增加翼尖离地高度,防止机翼变形后翼尖擦地,另一方面可以在一定程度上增加横向稳定性。
High-altitude long-endurance unmanned aerial vehicle wing suitable for single-wing layout
一种适用于下单翼布局的高空长航时无人机机翼
2020-08-07
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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