Manufacturing method of light aerofoil with super-high aspect ratio and high lift-drag ratio and aerofoil manufactured thereby

Abstract

The invention discloses a manufacturing method of a light aerofoil with super-high aspect ratio and high lift-drag ratio and an aerofoil manufactured thereby. At present, some used optimized design methods for improving the strength and the rigidity of the aerofoil with the high aspect ratio have the limited improvement space; and if a method for increasing geometrical characteristic parameters of the sections of the plasmodium is adopted, the structure weight of the aerofoil needs to be increased and the effect is poor. By the manufacturing method adopted by the invention, these problems are solved. According to the overall configuration of an aircraft, the aerofoil is divided into a plurality of sections; tensile wires are arranged according to a certain mode section by section. The research result shows that the original bending function of the aerofoil is replaced by the tension of the tensile wires and the impaction of the aerofoil, and under the premise that the structure weight is basically not increased, the rigidity and the strength of the aerofoil with the high aspect ratio are greatly improved, and the pneumatic elastic deformation is reduced to be within 10 percent of the traditional aerofoil. The manufacturing method is very important for the practical application of the aerofoil with super-high aspect ratio, the cruising efficiency of the aircraft can be greatly improved, and the fuel consumption and the cost are reduced.

Description

technical field

[0001] The invention relates to the field of aircraft, in particular to a method for manufacturing a wing with a super-large aspect ratio, light weight, and high lift-to-drag ratio and the manufactured wing. Background technique

[0002] The ultra-large aspect ratio aircraft has a high cruise lift-to-drag ratio and cruise efficiency, which can greatly increase the range and flight time of the aircraft, and reduce fuel consumption. Therefore, the ultra-large aspect ratio aircraft has very broad development prospects in transportation, environmental monitoring and communication relay, and is increasingly valued by countries all over the world.

[0003] Ultra-high-aspect-ratio aircraft adopts a large-aspect-ratio wing layout, and its strength and stiffness are generally small. This structure may bring the following consequences: when the super-large-aspect-ratio aircraft is subjected to aerodynamic loads, the wings will undergo large upturning, torsional deform...

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