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Inflatable wing with controllable sway trailing edge

A wing and trailing edge technology, which is applied in the field of aerospace vehicles, can solve problems such as interface damage and fracture, unsuitability for large-area use and layout, and high brittleness of piezoelectric materials, so as to achieve the effect of improving the aerodynamic shape

Inactive Publication Date: 2010-03-03
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, commonly used piezoelectric materials are brittle, poorly compatible with body materials (especially when applied to curved surfaces), and are prone to damage and fracture at the interface, so they are not suitable for large-area use and layout.

Method used

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  • Inflatable wing with controllable sway trailing edge
  • Inflatable wing with controllable sway trailing edge
  • Inflatable wing with controllable sway trailing edge

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Experimental program
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Embodiment Construction

[0029] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] An inflatable wing with controllable swing at the trailing edge, which is designed with a split skin tension structure, such as figure 1 , 2 , 3, it is composed of main wing 1, auxiliary wing 2, connecting skin 3, piezoelectric fiber composite material unit 4 and corresponding control system;

[0031] The main wing 1 and the auxiliary wing 2 are all airbags processed by flexible high-strength rubberized cloth, and have a common airfoil curve; the auxiliary wing is connected by a line (point connection on the profile of the airfoil) and The main wings are connected into one body; the airbags of the main wings and the auxiliary wings are provided with several tie bars 5, which divide the wings into interconnected compartments one by one. The tendon structure is beneficial to the tensioned airfoil to form the required airfoil, and at the...

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Abstract

The invention relates to an inflatable wing with a controllable sway trailing edge and is characterized in that: the inflatable wing adopts the structural design of split skin lacing wires and comprises a main wing, an auxiliary wing, a connection skin and a piezoelectric fibrous composite unit, wherein the main wing and the auxiliary wing are both of inflatable air bag structure, and form a common wing-shaped curve; the auxiliary wing is connected with the main wing as a body through wire joint; the inner parts of air bags of the main wing and the auxiliary wing are provided with a pluralityof lacing wires that divide the wing into bays which are mutually communicated; two ends of the connection skin are respectively bonded with the main wing and the auxiliary wing the two of which are connected together; and the piezoelectric fibrous composite unit is attached to the connection skin and the bottom edge of the piezoelectric fibrous composite unit is level with that of the connectionskin. The inflatable wing effectively solves the flight control problem of inflatable wings.

Description

technical field [0001] The invention relates to a wing, in particular to a trailing edge controllable swing inflatable wing, which belongs to the technical field of aerospace vehicles. Background technique [0002] Pneumatic wing is a new type of flexible wing with good development prospects. The inflatable wing can be pre-folded in the fuselage, and quickly unfolded into a wing shape when needed to provide lift for the aircraft. It has the advantages of small size, light weight, rapid deployment, and repeated use when stacked. [0003] Most of the inflated wings used are inflated as a whole, and there is no aileron, so the aircraft using inflated wings need to generate rolling moment by other means. The current research focuses on deforming the non-stiffened inflated wing. to provide roll control. [0004] The driving force for deformation is mostly provided by conventional steering gear or smart materials, such as piezoelectric materials and shape memory alloys. Among t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C3/30
Inventor 王华申世娟王伟刘仁浩纪红
Owner BEIHANG UNIV
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