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Curved surface type variable thickness sealing plate for aircraft movable airfoil and design method of curved surface type variable thickness sealing plate

A sealing plate and movable wing technology, applied in aircraft parts, aircraft control, ground devices, etc., can solve the problems of a large number of parts, complex structure and functional principle of the sealing device, and heavy weight, etc., and achieve light weight and simple structure. , the effect of reducing stress

Active Publication Date: 2018-11-02
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of the mechanism-type sealing device are: the structural form and functional principle of the sealing device are complex, the number of parts is large, and the weight is relatively large

Method used

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  • Curved surface type variable thickness sealing plate for aircraft movable airfoil and design method of curved surface type variable thickness sealing plate
  • Curved surface type variable thickness sealing plate for aircraft movable airfoil and design method of curved surface type variable thickness sealing plate
  • Curved surface type variable thickness sealing plate for aircraft movable airfoil and design method of curved surface type variable thickness sealing plate

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Embodiment Construction

[0033] In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] The aileron is a typical active wing surface of an aircraft, which is used to control the roll of the aircraft. Herein, the specific implementation manner of the present invention is described by taking the aileron as an example. exist figure 1 Among them, the aileron, that is, the movable airfoil 3 is mounted on the trailing edge of the fixed airfoil 1 in a hinged manner, and can deflect up and down around the axis of rotation 2 .

[0035] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the embodiment of the present invention provides a curved variable-thickness sealing plate for the active wing of an aircraft. The ...

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Abstract

The invention discloses a curved surface type variable thickness sealing plate for an aircraft movable airfoil and a design method of the curved surface type variable thickness sealing plate. The sealing plate comprises a sealing plate rigid part and a sealing plate flexible part; the sealing plate rigid part is fixedly connected onto a fixing airfoil; one end of the sealing plate rigid part is fixedly connected with a head end of the sealing plate flexible part; a tail end of the sealing plate flexible part is overlapped on the outer surface of a movable airfoil; and the sealing plate flexible part is a curved surface type variable thickness plate with the middle part bulging outwards and the thickness gradually decreasing to zero from the root to the tail end of the sealing plate. The sealing plate provided by the invention is capable of ensuring the sealing effect during the whole movement process of the movable airfoil, and has the characteristics of small size and light weight.

Description

technical field [0001] The invention relates to the field of aircraft structure design, in particular to a curved-surface variable-thickness sealing plate used for the movable wing surface of an aircraft and a design method thereof. Background technique [0002] Flaps, ailerons, rudders, elevators and other movable airfoils are necessary equipment for aircraft to achieve maneuvering flight. They are generally mounted on fixed airfoils by hinges and can be deflected up and down. During the deflection process of the movable wing surface, in order to avoid the movement interference between it and the fixed wing surface, a gap is reserved between the two, and this gap has an adverse effect on the aerodynamic and stealth performance of the aircraft. [0003] In recent years, with the development of aviation technology, the requirements for aircraft aerodynamics and stealth performance have become higher and higher, and the requirements for the surface integrity of aircraft have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C9/16B64F5/00
CPCB64C9/16B64F5/00
Inventor 孙中超喻天翔庞欢宋笔锋崔卫民
Owner NORTHWESTERN POLYTECHNICAL UNIV
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