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Winglet device with adjustable angle

A wing tip and wing technology is applied in the field of aircraft design, which can solve the problems of less adjustable angle of the device, affect flight safety, and take up a large space, and achieve the effects of many adjustable angles, small occupied volume, and small air resistance.

Inactive Publication Date: 2016-03-02
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device has few adjustable angles and takes up a lot of space. The metal buckle chain will move in the air, and it is easy to disconnect and fall off, which affects flight safety.

Method used

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  • Winglet device with adjustable angle
  • Winglet device with adjustable angle
  • Winglet device with adjustable angle

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] Example 1: Adjust the inclination angle of the winglet to achieve the best aerodynamic effect

[0038] The winglet device of the present invention can adjust the inclination angle of the winglet, and through flight tests under different inclination angles, the test data results are analyzed to determine the optimal inclination angle of the winglet to obtain the optimal aerodynamic effect.

example 2

[0039] Example 2, quick and easy replacement of damaged winglets

[0040] The winglet device of the present invention is convenient to use and maintain. If the winglet of the aircraft is damaged, it does not need to be repaired like the current winglet, but can be disassembled and replaced immediately, saving a lot of valuable maintenance time. At the same time, the damaged winglet can be brought back to the maintenance area for maintenance and treatment without having to be discarded, which saves a lot of cost.

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PUM

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Abstract

A winglet device with adjustable angle includes a wingtip holder (1), insert blocks (2), connecting rods (3) and compression springs (4). The wingtip holder (1) is connected with the wingtip; one side of the wingtip holder (1) is provided with two or more grooves; both ends of each groove are respectively provided an insert block groove in a non-rotating shape and a blind hole; the shape of the insert blocks (2) is consistent with the shape of the insert block grooves, and the insert blocks are inserted into the insert block grooves; the outer end face of each insert block (2) is provided with a ring of adjustment grooves circumferentially arranged, and each adjustment groove forms a centrosymmetric figure along the center of the circumference; one end of each connecting rod (3) is provided with a ring of projections matching with the adjustment grooves, the projections are in the adjustment grooves, and the connecting rods (3) are connected with the winglet; and one end of each compression spring (4) is arranged in the blind hole, and the other end of each compression spring abuts against the other end face of the connecting rod (3) and is axially compresses the connecting rod (3). The winglet device has the advantages of small space occupation, light weight, and the many adjustable angles.

Description

technical field [0001] The invention relates to a winglet device, which belongs to the field of aviation vehicle design. Background technique [0002] Winglets are used for subsonic aircraft, mainly including civil aviation passenger aircraft, military transport aircraft, aerial refueling aircraft, early warning aircraft and unmanned aerial vehicles. In the subsonic aircraft in the world today, some winglets are set up to improve the flow of the airflow in the span of the wing, reduce the induced drag of the wing, reduce fuel consumption, and improve economic performance. [0003] But not all subsonic aircraft use winglets. The first is the cost issue. The installation of winglets increases the design and manufacturing costs, and the installation of winglets on passenger aircraft will cost hundreds of thousands of dollars. Secondly, the aircraft performs various tasks, and the winglets can only exert their advantages to the greatest extent during the cruise process, that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C3/36B64C3/50
CPCB64C3/36B64C3/50
Inventor 魏凯陈迪赵豪
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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