Wing tip winglet structure with variable mounting angles

Abstract

The invention relates to a wing tip winglet structure with variable mounting angles, belongs to the field of wing structures, and aims to solve the problems that a conventional wing tip winglet structure cannot automatically adapt to changed flight heights and changed flight speeds, and the maximum aerodynamic efficiency can be realized only under a specific height and a specific speed. The wing tip winglet structure comprises a fixed wing segment (1), wherein the fixed wing segment (1) is connected with a rotatable winglet (3) through a twisting segment (2); a long end of an L-shaped curved beam (4) is fixedly arranged in the fixed wing segment (1), a short end of the L-shaped curved beam (4) is movably arranged in the rotatable winglet (3), and the bend part of the L-shaped curved beam (4) is located in the twisting segment (2); connecting rods (5) are separately arranged on two sides of the L-shaped curved beam (4), one ends of the connecting rods (5) are mounted on the rotatable winglet (3), and the other ends of the connecting rods (5) are connected with a driver (6). The wing tip winglet structure disclosed by the invention has the advantages of being simple in structure, the deformation of the variable mounting angles of the wing tip winglet is realized, the aerodynamic efficiency is improved, and the seamless deformation between the wing tip winglet and a wing can be realized.

Description

technical field [0001] The invention relates to a winglet structure with variable installation angle. Background technique [0002] Winglets are small wings similar to the airfoil of the wing, approximately perpendicular to the airfoil of the wing, and were invented by R.T. Whitcomb of NASA Ames Research Center in the 1980s. This invention hopes to make a winglet that can automatically change the winglet installation angle in flight according to the flight situation to obtain optimal performance through the winglet structure with variable installation angle and through the driving method of the connecting rod. structure. The winglets of existing general fixed-wing aircraft can only achieve maximum aerodynamic efficiency based on a specific altitude and speed. [0003] Most of the existing variant winglet structures are variable-inclination winglets, because the mechanical structure is relatively simple, and the structure is better realized. And the deformation-aerodynamic...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing winglet structure cannot automatically adapt to the changing flight height and speed, and the maximum aerodynamic efficiency can only be realized at a specific height and speed, and proposes a variable installation angle winglet structure

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