Rigid-flexible coupling unmanned aerial vehicle morphing wing and additive manufacturing method thereof

A rigid-flexible coupling and UAV technology, applied in the direction of wings, manufacturing tools, additive manufacturing, etc., can solve the problem of uncontrollable deformation of UAV deformation wings

Pending Publication Date: 2019-11-08
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of uncontrollable deformation of UAV deformation wing

Method used

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  • Rigid-flexible coupling unmanned aerial vehicle morphing wing and additive manufacturing method thereof
  • Rigid-flexible coupling unmanned aerial vehicle morphing wing and additive manufacturing method thereof
  • Rigid-flexible coupling unmanned aerial vehicle morphing wing and additive manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] like figure 2 and image 3 As shown, a rigid-flexible coupling UAV deformable wing, including a shape memory alloy strip / wire 1 for controlling the upward deformation of the wing, a shape memory alloy strip / wire 2 for controlling the downward deformation of the wing, a rib 3, and a flexible substrate 4. Insulation and heat insulation covering body 5; the shape memory alloy strips / wires 1 for controlling the upward deformation of the wings and the shape memory alloy strips / wires 2 for controlling the downward deformation of the wings are arranged in a staggered interval, and the shape memory for controlling the upward deformation of the wings The alloy strip / wire 1 and the shape memory alloy strip / wire 2 for controlling the downward deformation of the wing are provided with a plurality of reinforcing ribs 3 at intervals; the shape memory alloy strip / wire 1 for controlling the upward deformation of the wing and the downward deformation of the control wing The shape memo...

Embodiment 2

[0066] like image 3 and Figure 5 As shown, a rigid-flexible coupling UAV deformable wing, including a shape memory alloy strip / wire 1 for controlling the upward deformation of the wing, a shape memory alloy strip / wire 2 for controlling the downward deformation of the wing, a rib 3, and a flexible substrate 4. Insulation and heat insulation covering body 5. Shape memory alloy and polymer material composite strip for controlling the downward deformation of the wing and tail 10. Shape memory alloy and polymer material composite strip for controlling the upward deformation of the wing and tail 11. Control the wing The shape memory alloy spring 12 deformed backwards, the shape memory alloy spring 13 that controls the forward deformation of the wing;

[0067] The shape memory alloy strips / wires 1 that control the upward deformation of the wing and the shape memory alloy strips / wires 2 that control the downward deformation of the wing are arranged alternately at intervals, and the...

specific example

[0099] In this specific example, the NiTi shape memory alloy strip and spring are subjected to shape memory training at 600°C, so that they have the characteristic of bending under the influence of electric current. The polyetheretherketone (PEEK) shape memory material is used as a flexible material, and the flexible base part is printed by the 3D printing method of global temperature control, local rapid cooling and local printing process parameter changes. The NiTi alloy strips and springs are arranged on the printed PEEK material, and the PEEK material additive manufacturing is carried out again, and the UAV deformation wing printing is realized through cooling. In this embodiment, the total length of the deformed wing of the UAV is 200mm; the length of the NiTi alloy strip is 110mm, and the spacing is 15mm; the length of the NiTi alloy spring is 40mm, and the spacing is 22mm;

[0100] The wing manufactured in this specific example can realize 30° reciprocating deformation ...

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PUM

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Abstract

The invention provides a rigid-flexible coupling unmanned aerial vehicle morphing wing and an additive manufacturing method thereof. A shape memory alloy strip/wire for controlling a wing to be morphed upwards and a shape memory alloy strip/wire for controlling the wing to be morphed downwards are arranged in a crossed and spaced manner; multiple reinforcing ribs are arranged on the shape memory alloy strip/wire for controlling the wing to be morphed upwards and the shape memory alloy strip/wire for controlling the wing to be morphed downwards in a spaced manner; the shape memory alloy strip/wire for controlling the wing to be morphed upwards and the shape memory alloy strip/wire for controlling the wing to be morphed downwards are arranged in a flexible base body; and insulating and heatinsulation coating bodies coat the external surfaces of the morphed shape memory alloy strip/wires. Electric heating elements are arranged on the shape memory alloy strip/wire for controlling the wingto be morphed upwards and the shape memory alloy strip/wire for controlling the wing to be morphed downwards. According to the additive manufacturing method, the unmanned aerial vehicle morphing wingis prepared by using the additive manufacturing method. According to the rigid-flexible coupling unmanned aerial vehicle morphing wing and the additive manufacturing method thereof, a characteristicthat the wing is morphed upwards and downwards and morphed forwards and backwards in the case that the unmanned aerial vehicle morphing wing is electrified is realized.

Description

technical field [0001] The invention belongs to the field of unmanned aerial vehicles, and in particular relates to a rigid-flexible coupling unmanned aerial vehicle deformation wing and an additive manufacturing method thereof. Background technique [0002] With the continuous increase of performance requirements such as flight efficiency and flexibility of UAV aircraft in various environments, the research on intelligent deformable wings has become one of the current hot spots. At present, the research on intelligent deformable flying wings is in its infancy, and there is no complete and unified understanding of some concepts and key issues of intelligent deformable wings in the field of aircraft. [0003] The design of intelligent deformable wings is generally inspired by the flight of birds. The use of smart materials, aerodynamics, structural design, elastic mechanics, bionics and modern control technology enables the aerodynamic shape and physical structure of the UAV ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C3/38B29C64/118B33Y10/00
CPCB64C3/38B29C64/118B33Y10/00B33Y80/00B29L2031/3085B64C39/024B64U10/40B64U30/12B33Y50/02B33Y70/00B29C64/393B64C3/187B64C39/003
Inventor 张志辉于征磊张晓龙闫维邵艳龙梁云虹刘庆萍张清泉刘宇霆
Owner JILIN UNIV
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