The winglet comprises a transition section, one end of the transition section is assembled on the end face of a wingtip of the aircraft wing, the end face of the wingtip of the aircraft wing extends to form the transition section, the transition section is provided with a first arc-shaped section which is partially oval, one end of the first arc-shaped section is arranged on the end face of the other end of the transition section, and the other end of the first arc-shaped section is provided with a second arc-shaped section which is partially oval. The first arc-shaped section is arranged at one end of the wing tip, is tangent to the transition section and is provided with a second arc-shaped section which is partially elliptical, one end of the second arc-shaped section is assembled at the other end of the first arc-shaped section, and the wing tip, the transition section, the first arc-shaped section and the second arc-shaped section form a curved surface with continuous curvature. During design, the design parameters of the winglet are mainly the angle deflection difference value between the first ellipse and the second ellipse and the length of the semi-major axis a, compared with an existing curve winglet, the design process is simplified, meanwhile, the curvature change of the reverse guide line on the winglet can be more continuous, and the lift-drag ratio of the whole wing is increased.
本申请涉及一种翼梢小翼及飞机机翼,包括:过渡段,所述过渡段一端装配于机翼翼梢的端面上,所述机翼翼梢的端面延伸形成所述过渡段,具有部分椭圆形状的第一弧形段,所述第一弧形段一端设置于过渡段的另一端端面上,并与所述过渡段相切,具有部分椭圆形状的第二弧形段,所述第二弧形段一端装配于第一弧形段的另一端上,所述机翼翼梢、过渡段、第一弧形段和第二弧形段形成曲率连续的曲面。在设计时,翼梢小翼的设计参数主要是第一椭圆和第二椭圆之间的角度偏转差值和长半轴a长度,相对于现有的曲线翼梢小翼而言,简化了设计流程的同时,能够使得翼梢小翼上反的引导线曲率变化更加连续,提升整个机翼的升阻比。
Winglet and aircraft wing
一种翼梢小翼及飞机机翼
2025-05-30
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
Winglet, fixed-wing aircraft and method for controlling airfoil profile of winglet
European Patent Office | 2024
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