Assembled high-bearing periodic porous structure

A porous structure and periodic technology, applied in the direction of sheets/plates, building elements, etc., can solve the problems of limited size of periodic porous structures, complex topological configuration of periodic porous structures, high manufacturing cost of periodic porous structures, etc. , achieve the effects of small relative density, good scalability and scalability, and meet the requirements of structural load-bearing performance

Active Publication Date: 2021-11-30
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned manufacturing processes can process periodic porous structures of different configurations and materials, they still face problems such as limited processing sizes and high processing costs.
First, the maximum periodic porous structure that can be manufactured is limited by the size of the equipment itself, which leads to the limitation of the size of the periodic porous structure; second, the topology of the periodic porous structure is complex, requiring special processes and auxiliary equipment, resulting in periodic Porous structures are expensive to manufacture

Method used

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  • Assembled high-bearing periodic porous structure
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  • Assembled high-bearing periodic porous structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see Figure 1-11 , The assembled high-load-bearing periodic porous structure provided by the present invention is composed of a certain number of ring blocks 1, corner codes 2 and bolt groups.

[0040] Further, the outer side of the ring block is octagonal, and the inner side is a closed and symmetrical curve with a certain thickness; the ring block is designed with 2 sets of mounting holes, the first set of mounting holes is 4 through holes, which are set at the same x , y At the midpoint of the side parallel to the axis, the second set of mounting holes 1 is 4 stepped holes, which are set on x , y The axis is on the side of ±45°; the ring block and x , y The sides of the sides parallel to the axis are designed as 45° bevels, which are compatible withx , y The side of the side with the axis at ±45° is designed as a 90° plane; the ring block is in contact with the x The axes are symmetric about the center in the orientations of 0°, 45°, 90° and 135°.

[0041] Fur...

Embodiment 2

[0049] see Figure 12-14 , in order to improve the connection strength of the periodic porous structure, the connection mode between the porous unit cells can be adjusted.

[0050] Specifically, as described in Example 1, when the first porous unit cell 4 and the second porous unit cell 5 are connected, on the coincident surface, the first porous unit cell fastens the bolt The axes of group 4-1 and the second porous unit cell fastening bolt group 5-1 are coincident, and they are two independent sets of bolt groups.

[0051] Further, the four sets of the first porous unit cell fastening bolt group 4-1 and the second porous unit cell fastening bolt group 5-1 on the overlapping surface are removed, and the third bolt group 7 is used for mechanical connection , the third bolt group 7 directly fastens the first porous unit cell 4 and the second porous unit cell 5, which helps to improve the strength and stability of the porous structure.

Embodiment 3

[0053] see Figure 15-17 , the assembled high-load periodic porous structure provided by the present invention can realize the connection of multi-unit large-scale periodic porous structures.

[0054] Specifically, when the first porous unit cell 4, the second porous unit cell 5, the third porous unit cell 9 and the fourth porous unit cell 10 are assembled, first perform 2 according to embodiment 1 or embodiment 2. assembly of unit cells.

[0055] Further, the first porous unit cell 4, the second porous unit cell 5, the third porous unit cell 9 and the fourth porous unit cell 10 will form a cross-shaped porous structure around an overlapping edge, and the overlapping Four fourth bolt groups 8 need to be installed around the edge, and the fourth bolt group 8 sequentially controls the first porous unit cell 4, the second porous unit cell 5, and the third porous unit cell in a clockwise or counterclockwise order. The unit cell 9 and the fourth porous unit cell 10 are fastened. ...

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Abstract

The invention discloses an assembled high-bearing periodic porous structure. The assembled high-bearing periodic porous structure is formed by connecting a plurality of assembled porous unit cells, each assembled porous unit cell is composed of six ring blocks and eight brackets, the six ring blocks are assembled to form a cube, the eight brackets are correspondingly installed on the inner sides of eight vertexes of the cube, the ring blocks and the brackets are connected through bolts to form the porous unit cells, the different porous unit cells are connected through bolt sets to form the periodic porous structure, and the bearing performance of the periodic porous structure can be further regulated and controlled by changing the sizes of the ring blocks and the brackets. According to the assembled high-bearing periodic porous structure, the porous unit cells are decomposed into a plurality of parts, the porous unit cells and the periodic porous structure are assembled in a mechanical connection manner so that the limitation of machining equipment and process can be avoided, the preparation of the high-bearing periodic porous structure with any size and rich shape can be realized on the premise of low cost, and the engineering applicability of the periodic porous structure is improved.

Description

technical field [0001] The invention belongs to the field of periodic porous structure design, and more specifically relates to the design of an assembled high-load periodic porous structure. Background technique [0002] The periodic porous structure is a network structure composed of interpenetrating or closed pores, which has excellent mechanical properties such as low density, high strength and energy absorption, and has a wide range of applications in the fields of vehicles, ships, aerospace and medicine. application. The periodic porous structure can realize the regulation of functions and characteristics by designing the topological configuration and geometric size of the basic unit cell, and has the characteristics of strong designability and stable structural performance. [0003] Although the periodic porous structure has excellent performance, its complicated manufacturing process easily limits its engineering application. At present, the main manufacturing proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16S1/02
CPCF16S1/02
Inventor 付君健舒正涛陈鹏田启华杜义贤周祥曼
Owner CHINA THREE GORGES UNIV
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