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Adjustable circular tube energy absorption/energy storage mechanism based on paper-cut structures

A technology of energy storage mechanism and circular tube, applied in mechanical equipment, springs/shock absorbers, springs made of plastic materials, etc., can solve the problems that impact-resistant structures cannot be recycled and energy cannot be recovered, and achieve stable and repeatable performance. Usability, light weight, the effect of reducing the cost of use

Active Publication Date: 2021-12-10
禧佑源航空科技集团有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an adjustable circular tube energy-absorbing / energy-storage mechanism based on the kirigami structure, so as to solve the technical problems that the existing impact-resistant structure cannot be recycled, and the energy cannot be recovered.

Method used

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  • Adjustable circular tube energy absorption/energy storage mechanism based on paper-cut structures
  • Adjustable circular tube energy absorption/energy storage mechanism based on paper-cut structures
  • Adjustable circular tube energy absorption/energy storage mechanism based on paper-cut structures

Examples

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Effect test

Embodiment 1

[0022] Take the number m of different paper-cut sections, which are 1, 2, 3, and 4 respectively. The height of the paper-cut section and the uncut section are both 20 mm, and the number of support arms of the paper-cut section is 12. The static displacement compression load of 20×m mm is applied to the number m of different paper-cut sections, and the force-displacement response curves of different structures are obtained, as shown in the attached image 3 shown. attached Figure 4 The deformation simulation diagrams corresponding to different stages of the circular tube are given when the quantity m=4. For the number m of paper-cut segments, m times of instability will occur during the whole deformation process, that is, there will be m critical buckling stresses. As the number m increases, the force-displacement response curve becomes longer and smoother, which means that its deformation stroke is longer, which will provide a reference for a structure with good energy abs...

Embodiment 2

[0024] as attached Figure 5 As shown, take the 11×11 circular tubes in Example 1 and make a square array with equal spacing between the circular tubes. The circular tubes are placed in the perforated plate as shown in the figure (the number of plates can be increased appropriately) Fix the tube position. The total height of the circular tubes, the distance between each circular tube and the position of the paper-cut section can be arbitrarily selected according to the actual situation.

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Abstract

The invention discloses an adjustable circular tube energy absorption / energy storage mechanism based on paper-cut structures, and belongs to the technical field of advanced intelligent structures. According to the structure, local cutting is carried out on traditional circular tubes, the notch direction is in the axial direction of the circular tubes, and the plurality of circular tubes are arrayed in a specific mode according to actual application requirements. When the circular tubes are subjected to axial impact force, cutting sections of the circular tubes deform in the specific direction, structural energy absorption and energy storage are achieved through local buckling deformation, after external force is removed, deformation recovers, and the stored energy is released. According to the structure, the paper-cut structures are introduced into local areas of the circular tubes, the structure has the characteristics of high specific energy absorption rate and low peak load by adjusting the characteristic parameters of notches, and the structure can recover to original deformation after the axial impact load disappears, so that the structure can be reused. The adjustable paper-cut circular tubes have the advantages of being easy to process, low in manufacturing cost, easy to replace and the like, and are expected to be applied to collision energy absorption and energy storage parts of large devices such as traffic equipment and aerospace.

Description

technical field [0001] The invention belongs to the technical field of advanced intelligent structures, and in particular relates to an adjustable circular tube energy absorption / energy storage mechanism based on a paper-cut structure. The present invention introduces a kirigami structure in a local area of ​​the circular tube, and regulates its mechanical response by adjusting the characteristic parameters such as the number of kirigami section support arms, the height of the kirigami section, and the number of kirigami sections, so that the mechanism has the characteristics of high specific energy absorption rate and low peak load , and the mechanism can return to the original deformation after the axial impact load is removed, realizing the reusability of the mechanism. It is expected to be widely used in the fields of spacecraft landing systems, various energy-absorbing structures or impact-resistant tools. Background technique [0002] The energy absorption behavior of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/00F16F1/36F16F1/373F16F3/087
CPCF16F1/00F16F1/373F16F1/3605F16F3/0876B64G1/62F16F2234/02F16F7/00F16F2238/022F16F7/123
Inventor 王菡辛立彪李志强王宝龙
Owner 禧佑源航空科技集团有限公司
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