CN218409512U - Novel lattice structure based on I-beam - Google Patents
Novel lattice structure based on I-beam Download PDFInfo
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- CN218409512U CN218409512U CN202222874240.7U CN202222874240U CN218409512U CN 218409512 U CN218409512 U CN 218409512U CN 202222874240 U CN202222874240 U CN 202222874240U CN 218409512 U CN218409512 U CN 218409512U
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Abstract
The utility model relates to a three-dimensional lattice structure of I-beam type belongs to the dot matrix material field, and current circular branch lattice structure bearing capacity is low, takes place the problem of deformation and surrender destruction easily when bearing the moment of flexure, and the technical scheme of adoption is: include periodic regular arrangement and interconnect's a plurality of dot matrix unit cells in three-dimensional space, the dot matrix unit cell include a plurality of spatial distribution's node and connect in I-beam pole between the node, the utility model discloses convert branch cross sectional shape into I-beam shape by cylindrical to form the lattice structure of novel I-beam cross-section branch, strengthened the mechanical properties of structure to a great extent, and further improved the lightweight degree, make this I-beam type lattice structure have good using value in functional bearing and lightweight application, and easily prepare the realization.
Description
Technical Field
The utility model belongs to the dot matrix material field, concretely relates to novel lattice structure based on I-beam.
Background
Under the great demand of light weight of mechanical equipment in China and the vigorous development of advanced manufacturing technology, a dot matrix material is a new material almost completely different from the traditional structural material, has multiple unique excellent performances due to the ever-changing microstructures and high porosity, and is widely applied to various fields. As a typical porous material, the density of the material is far lower than that of a traditional solid material, and the light weight and high strength characteristics of the lattice material can meet the requirement of structural design in the fields of aerospace, aviation and navigation on light weight.
The lattice structure is a structure formed by arranging the minimum unit cell on a three-dimensional space, and the internal structure and the relative density of the lattice structure are adjustable, so that the mechanical property of the lattice material can be adjusted within a certain range, the application of the lattice material in various fields is met, and the necessary requirements are met by developing a structural design method which can improve the specific modulus and the specific strength of the lattice structure and improve the advantage of light weight. The existing common lattice structure mainly adopts a support rod with a circular section, the support rod with the circular section often has lower section inertia moment, and deformation and yield damage are easy to occur when the support rod bears bending moment, so that the structure has lower bearing capacity.
SUMMERY OF THE UTILITY MODEL
For solving current circular branch lattice structure bearing capacity low, take place to warp easily and the problem of surrender destruction when bearing the moment of flexure, the utility model provides a novel lattice structure based on the I-beam converts branch cross section shape into the I-beam shape by the cylindricality to form the lattice structure of novel I-beam cross section branch, strengthened the mechanical properties of structure to a great extent, and further improved the lightweight degree, make this I-beam type lattice structure have good using value in functional bearing and lightweight application, and easily preparation realizes.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a novel lattice structure based on an I-beam comprises a plurality of lattice unit cells which are periodically and regularly arranged in a three-dimensional space and are mutually connected, wherein each lattice unit cell comprises a plurality of nodes which are distributed in the space and an I-beam rod connected between the nodes.
The nodes in the lattice unit cell are distributed in a body-centered cubic manner, four I-shaped beam rods are respectively connected with four pairs of vertex nodes of the body-centered cubic, and the four I-shaped beam rods are intersected at the body-centered nodes.
The nodes in the lattice unit cells are distributed in a face-centered cubic manner; eight I-beam support rods are respectively connected with four pairs of vertex nodes of the face-centered cube, and two adjacent I-beam support rods are intersected at the face-centered nodes.
Compared with the prior art, the utility model, specifically there is the gain effect to embody.
1. The utility model discloses a I-beam type lattice structure, simple structure, preparation is convenient. The round supporting rod in the cell element is changed into the I-beam-shaped supporting rod, so that the section inertia moment of the supporting rod is increased, the bending strength of the supporting rod is greatly increased, and the mechanical property is remarkably improved compared with that of the traditional lattice structure.
2. The I-beam lattice structure has the advantages of light weight, high specific surface area, hole opening characteristics and functional potential, and is suitable for preparing filling type vibration reduction structural members with high rigidity and high damping.
3. The design method of the I-beam type lattice structure is widely applicable to lattice structures containing cylindrical supporting rods, so that the improved lattice structure has excellent comprehensive performance and great popularization potential.
Drawings
FIG. 1 is a three-dimensional lattice structure of I-beam of lattice cells distributed in the center of the body.
FIG. 2 is a schematic diagram of an overall three-dimensional lattice structure.
Fig. 3 is a schematic cross-sectional view of an i-beam.
Fig. 4 is a schematic diagram of a unit cell structure of an i-beam rod with different sizes.
FIG. 5 is a three-dimensional lattice structure of I-beams of lattice cells in a body-centered arrangement.
In the figure, 1 is.
Detailed Description
In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a novel lattice structure based on I-beam, includes a plurality of lattice unit cells of periodic regular arrangement and interconnect in three-dimensional space, the lattice unit cell include a plurality of spatial distribution's node with connect in I-beam pole between the node. The node distribution of the lattice unit cells can take different structural forms.
As shown in figure 1, the nodes in the lattice unit cell are distributed in a body-centered cubic manner, four I-beam rods are respectively connected with four pairs of vertex nodes of the body-centered cubic, and the four I-beam rods are intersected with the body-centered nodes. Fig. 2 shows a three-dimensional lattice structure of the i-beam. The utility model discloses an among the dot matrix structure that forms after the repeated range of dot matrix unit cell law, replace the circular branch structure in plane on horizontal direction, the diagonal plane with I-beam branch in the dot matrix for it becomes I-beam branch, has the light characteristic of excelling in.
As shown in FIG. 5, the nodes in the lattice unit cell are distributed in a face-centered cubic manner; eight I-beam supporting rods are respectively connected with four pairs of vertex nodes of the face-centered cube, and two adjacent I-beam supporting rods are intersected at the face-centered nodes. The face-centered cubic lattice unit cell structure is provided with eight vertex nodes and four face-centered nodes, and each face is respectively connected with the four vertex nodes and the face-centered nodes through four I-beam supporting rods.
The lattice structure is prepared by selecting a common AlSi10Mg material according to the technical rule of Selective Laser Melting (SLM), wherein the thickness of a slice layer in the selective laser melting process is 40um, the laser power is 290w, the scanning speed is 1200mm/s, and the hatching interval is 120um.
The utility model discloses utilize the comparatively excellent anti bending property of I-beam, strengthened the mechanical properties of structure to a great extent, and further improved the lightweight degree for this I-beam lattice structure has good using value on functional bearing and lightweight application, and easily preparation realizes.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (3)
1. The utility model provides a novel lattice structure based on I-beam which characterized in that: the lattice unit cells are periodically and regularly arranged in a three-dimensional space and are mutually connected, and each lattice unit cell comprises a plurality of nodes distributed in space and an I-shaped beam rod connected between the nodes.
2. The novel lattice structure based on the I-beam as claimed in claim 1, wherein: the nodes in the lattice unit cell are distributed in a body-centered cubic manner, four I-shaped beam rods are respectively connected with four pairs of vertex nodes of the body-centered cubic, and the four I-shaped beam rods are intersected at the body-centered nodes.
3. The novel lattice structure based on the I-beam as claimed in claim 1, wherein: nodes in the lattice unit cells are distributed in a face-centered cubic manner; eight I-beam supporting rods are respectively connected with four pairs of vertex nodes of the face-centered cube, and two adjacent I-beam supporting rods are intersected at the face-centered nodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222874240.7U CN218409512U (en) | 2022-10-31 | 2022-10-31 | Novel lattice structure based on I-beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222874240.7U CN218409512U (en) | 2022-10-31 | 2022-10-31 | Novel lattice structure based on I-beam |
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| Publication Number | Publication Date |
|---|---|
| CN218409512U true CN218409512U (en) | 2023-01-31 |
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| CN202222874240.7U Active CN218409512U (en) | 2022-10-31 | 2022-10-31 | Novel lattice structure based on I-beam |
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2022
- 2022-10-31 CN CN202222874240.7U patent/CN218409512U/en active Active
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