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A foldable UAV wing based on multi-stable characteristics

A multi-stable, unmanned aerial vehicle technology, applied in the field of unmanned aerial vehicles, can solve problems such as prone to failure, unstable folding structure, and unfavorable light weight of unmanned aerial vehicles, so as to achieve easy lightweight, simple and compact folding structure, and improved The effect of storage transport performance

Active Publication Date: 2021-09-21
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the folding structure of the wing is not conducive to the lightweight of the UAV, and the folding structure is not stable enough and prone to failure

Method used

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  • A foldable UAV wing based on multi-stable characteristics
  • A foldable UAV wing based on multi-stable characteristics
  • A foldable UAV wing based on multi-stable characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1 to Figure 8 As shown, a foldable UAV wing based on multi-stable characteristics includes a main wing 1, a folding structure 2, a flexible skin 3 and a support 4 fixed to the fuselage, and the folding structure 2 includes a multi-stable Composite cylindrical shell 2.1, two first pillars 2.2, first memory alloy 2.3, second memory alloy 2.5 and two second pillars 2.4, multi-stable composite cylindrical shell 2.1 includes sequentially connected first regions 2.1.1 , the second area 2.1.2 and the third area 2.1.3, the first area 2.1.1 is fixed to the main wing 1, the third area 2.1.3 supports 4 are fixed, and the lower ends of the two first columns 2.2 are respectively fixed on the first On the opposite sides of the area 2.1.1, the lower ends of the two second columns 2.4 are respectively fixed on the opposite sides of the third area 2.1.3, and the two ends of the second memory alloy 2.5 are respectively fixed to the upper ends of the two second columns 2.4...

Embodiment 2

[0035] Such as Figure 9 As shown, on the basis of Example 1, one end of the multi-stable composite cylindrical shell 2.1 is fixed to the main wing 1 by a fixing bolt, and the other end of the multi-stable composite cylindrical shell 2.1 is fixed to the support member 4 by a fixing bolt .

[0036] The flexible skin 3 includes an outer skin 3.1, a mesh support layer 3.2 and an inner skin 3.3 connected in sequence, and the outer skin 3.1, the inner skin 3.3 and the mesh support layer 3.2 together form a hollow cavity 3.4 . The structure can ensure the heat insulation effect of the flexible skin 3 and avoid excessive heat dissipation of the memory alloy. At the same time reduce the weight of the flexible skin 3 .

[0037] The outer surface of the flexible skin 3 is provided with reticulated grooves 5 , and the outer surface of the main wing 1 is provided with reticulated grooves 5 . The mesh groove 5 can absorb air therein, so that an air diaphragm is formed between the outer...

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Abstract

The invention discloses a foldable unmanned aerial vehicle wing based on multi-stable characteristics, which includes a main wing, a folding structure, a flexible skin and a support fixed to the fuselage, and the folding structure includes a multi-stable composite cylindrical shell , the first memory alloy and two first columns, one end of the multi-stable composite cylindrical shell is fixed to the main wing, the other end of the multi-stable composite cylindrical shell is fixed to the support, and the lower ends of the two first columns are respectively fixed on On the opposite sides of the multi-stable composite cylindrical shell, the two ends of the first memory alloy are respectively fixed to the upper ends of the two first columns, the two ends of the first memory alloy are respectively electrically connected to the heating circuit, and the flexible skin is wrapped in the folded Outside the structure, the two ends of the flexible skin are respectively fixed to the folding structure, the main wing and the support. The invention provides a foldable UAV wing based on multi-stable characteristics, which has the advantages of simple folding structure, small weight, stable folding and unfolding states, and the like.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a foldable unmanned aerial vehicle wing based on multi-stable characteristics. Background technique [0002] UAV, abbreviated as "UAV", is an unmanned aircraft operated by radio remote control equipment and self-contained program control device, or completely or intermittently operated autonomously by on-board computer. Compared with manned aircraft, UAVs are often more suitable for tasks that are too "dull, dirty or dangerous" UAVs can be used in reconnaissance, aerial photography, agriculture, plant protection, miniature selfies, express transportation, disaster relief, observing wild animals, monitoring infectious diseases, surveying and mapping , News reports, power inspections, disaster relief, film and television shooting, romance and other fields, the demand is very extensive. In order to facilitate transportation, people have developed foldable drones. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C3/56B64C3/26
CPCB64C3/26B64C3/56B64C2001/0072
Inventor 张征何杰李阳廖崇杰吴化平李吉泉丁浩
Owner ZHEJIANG UNIV OF TECH
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