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Assembled periodic octahedral truss lattice structure

A lattice structure, octahedral technology, applied in building elements, slender elements, improvement of process efficiency, etc., can solve the problems of reducing the intrinsic mechanical properties of the base material, low material utilization, cumbersome post-processing, etc. Improve the value of engineering applications, simplify the production process, and improve the effect of process constraints

Active Publication Date: 2022-05-06
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 prepare periodic truss lattice structures with various configurations and different materials, these methods consume a long time in the processing process and cumbersome post-processing, resulting in high energy consumption and low material utilization. pores and other obvious defects, thereby reducing the intrinsic mechanical properties of the matrix material; in order to solve the limitations of the above-mentioned traditional preparation methods, the present invention provides an assembled periodic octahedral lattice truss structure, by designing the configuration of the unit cell Elements and improved geometric dimensions, and then realize the regulation of its functions and characteristics. It has the characteristics of strong designability and stable structural performance.

Method used

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  • Assembled periodic octahedral truss lattice structure
  • Assembled periodic octahedral truss lattice structure
  • Assembled periodic octahedral truss lattice structure

Examples

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Embodiment 1

[0032] see Figure 1-10 , The assembled periodic octahedral truss lattice structure provided by the present invention is composed of two Type I connecting blocks 1, two Type II connecting blocks 2 and bolt groups.

[0033]Further, the inner sides of the Type I connection block 1 and the Type II connection block 2 are closed regular triangles with rounded corners that are symmetrical about the Y axis; wherein the inner contour of the Type I connection block 1 has two radii R1 and 1 rounded corner with a radius of R2, 2 sockets and 1 mounting head with a certain thickness on the outside; 1 rounded corner with a radius of R1 and 2 rounded corners with a radius of R2 on the outside of the Type II connection block, Correspondingly, it has 2 installation heads and 1 socket head, and has a certain thickness, take

[0034] Further, in this embodiment, the overall maximum size of the unit cell is L, the radius of the large fillet in the rounded triangles of the inner contours of the...

Embodiment 2

[0039] see Figure 9-11 , in order to improve the connection strength of the periodic octahedral truss lattice structure, the connection mode of the octahedral truss lattice unit cells can be adjusted.

[0040] Specifically, as described in Example 1, multiple octahedral truss lattice unit cells are combined and assembled, and adjacent unit cells are interconnected by long bolt groups to form a duplex unit cell group.

[0041] Further, using the ideas of point-to-line, line-to-surface, and surface-to-body, the truss lattice unit cell space structure 8 is gradually formed, which helps to improve the strength and stability of the porous structure.

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Abstract

The invention discloses an assembled periodic octahedral truss lattice structure which is formed by connecting a plurality of octahedral truss lattice unit cells capable of being assembled, and each octahedral truss lattice unit cell capable of being assembled is composed of two I-type connecting blocks and two II-type connecting blocks. The four connecting blocks are mechanically connected through the bolt sets to form an octahedron, the six matching hole sets of the octahedron structure are internally connected and fixed through the short bolt sets to form octahedron truss lattice unit cells, and the different octahedron truss lattice unit cells are connected through the long bolt sets to form the periodic octahedron truss lattice structure. The lattice unit cell is decomposed into four parts, the octahedral truss lattice unit cell and the periodic octahedral truss lattice structure are assembled in a mechanical connection mode, limitation of machining equipment and technology can be avoided, and preparation of the periodic octahedral truss lattice structure controllable in size and rich in configuration is achieved on the premise of low cost.

Description

technical field [0001] The invention belongs to the field of advanced manufacturing, and more specifically relates to the design of an assembled periodic octahedral truss lattice structure. Background technique [0002] The design scheme of porous truss lattice structure is currently recognized as one of the most effective engineering weight reduction schemes. It has many functional characteristics such as shape control, shock absorption, heat dissipation, sound absorption, energy absorption and heat transfer. Among them, the octahedral truss lattice structure has excellent mechanical properties such as low relative density, high specific stiffness, high strength, excellent mechanical properties and heat transfer performance. Great application value. [0003] The octahedral lattice structure is a stretch-dominant structure, which can be used as a reliable substitute for bending-dominant structures such as metal foam materials and honeycomb structures, and has higher structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/00F16S3/08
CPCF16F1/00F16S3/08Y02P10/25
Inventor 付君健蒙永根舒正涛周祥曼田启华
Owner CHINA THREE GORGES UNIV
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