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A Double Arrow Type Negative Poisson's Ratio Structure

A negative Poisson's ratio and structure technology, which is applied to the structure field of spatial lattice structure, can solve the complex manufacturing method of double-arrow type negative Poisson's ratio structure, poor compression resistance and impact resistance, and limited use and experimentation. Research and other issues to achieve the effect of design flexibility and operability, strong compressive and impact resistance, and convenient assembly and connection

Active Publication Date: 2021-02-09
威海哈威资产经营有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On February 12, 2014, the State Intellectual Property Office announced an application for an invention patent named a negative Poisson's ratio structural part with the application number: 201310566039.5. However, the shock resistance or cushioning parts of this structure have the disadvantages of poor structural stability, poor compression resistance and impact resistance; and the double arrow type negative Poisson's ratio structure has complex manufacturing methods and high costs, which limits the use of this type of structure. Practical use and experimental research of structures

Method used

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  • A Double Arrow Type Negative Poisson's Ratio Structure
  • A Double Arrow Type Negative Poisson's Ratio Structure
  • A Double Arrow Type Negative Poisson's Ratio Structure

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Embodiment Construction

[0023] Such as image 3 , Figure 4 The double-arrow-shaped negative Poisson's ratio structures shown include, for example, figure 1 , figure 2The double-arrow-type negative Poisson’s ratio structural unit shown in the figure, the double-arrow-type negative Poisson’s ratio structural unit includes an upper beam 8 and a lower beam 9 arranged parallel to each other, and the left and right ends of the upper beam 8 are respectively provided with (left and right) downward The inclined first upward slanting strut 4 and the second upward slanting strut 10, the upper beam 8, the first upward slanting strut 4, and the second upward slanting strut 10 form the upper arrow of the upper beam, and the lower beam 9 is about The two ends are respectively provided with a first downward slanting strut 6 and a second downward slanting strut 12 inclined downward (left and right), and the upper end of the lower crossbeam 9 is formed by The downward arrow of the lower crossbeam, the two ends of...

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Abstract

A double-headed arrow type negative poisson ratio structural body relates to the structural body field of space lattice structures, and includes a double-headed arrow type negative poisson ratio structural unit, wherein the double-headed arrow type negative poisson ratio structural unit includes an upper cross beam, a lower cross beam, a first upper diagonal bar, a second upper diagonal bar, a first lower diagonal bar, a second lower diagonal bar, a first middle diagonal bar and a second middle diagonal bar; a first upper connecting base, a second upper connecting base, a first lower connecting base and a second lower connecting base are respectively arranged at the lower ends of the first upper diagonal bar, the second upper diagonal bar, the first lower diagonal bar and the second lowerdiagonal bar, so as to form the double-headed arrow type negative poisson ratio structural unit; in space, the double-headed arrow type negative poisson ratio structural unit adopt the first upper connecting base, the second upper connecting base, the first lower connecting base, the second lower connecting base, the upper cross beam and the lower cross beam as connecting pieces for combined connection to form the double-headed arrow type negative poisson ratio structural body with the stereostructure. The double-headed arrow type negative poisson ratio structural body has the advantages of simple structure, high stability, light weight in unit space, high compression resistance, high impact resistance, and the like.

Description

technical field [0001] The present invention relates to the structure field of spatial lattice structure, in particular to the design and assembly process of spatial lattice structure, specifically a simple structure, high stability, small mass (density) in unit space, compression resistance and impact resistance Strong double-arrow-shaped negative Poisson's ratio structure. Background technique [0002] We know that the lattice structure is a new type of lightweight structure. Compared with the traditional foam and honeycomb structure, it has higher specific strength and specific stiffness, and the core has a larger porosity inside, making it more durable. There are broader prospects in the application of functional structures. The negative Poisson's ratio structure has a wide range of application prospects in the design of the automotive industry due to its excellent mechanical properties and good energy absorption capacity. It can be used in structural design to improve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/12F16F7/12
CPCF16F7/128
Inventor 王剑锋杨娜李卫华刘逸群赵汗青
Owner 威海哈威资产经营有限责任公司
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