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Lightweight lattice structure parametric modeling and data lightweight processing method

A technology of parametric modeling and lattice structure, which is applied in the field of additive manufacturing to achieve the effect of reducing requirements, improving bearing capacity, and increasing operation processing time

Active Publication Date: 2020-01-17
BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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Problems solved by technology

[0005] The present invention proposes a lightweight lattice structure parametric modeling and data lightweight processing method to solve the technical problems of how to improve model processing efficiency and reduce model memory data

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  • Lightweight lattice structure parametric modeling and data lightweight processing method
  • Lightweight lattice structure parametric modeling and data lightweight processing method
  • Lightweight lattice structure parametric modeling and data lightweight processing method

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Embodiment Construction

[0027] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] This embodiment proposes a lightweight lattice structure parametric modeling and data lightweight processing method with a rhombic dodecahedron structure. The method specifically includes the following steps:

[0029] S1. Establish a lattice unit cell structure model, specifically including:

[0030] S1-1. UG parametric modeling software is used for model design. By inserting curves in the design space, the basic structure design of the rhombohedral dodecahedral unit cell unit is completed. The maximum outer envelope size of the unit cell unit is 10mm× A unit cube of 10mm×10mm is used to facilitate the realization of the subsequent unit cell array to form a lattice structure. The unit cell structure wire frame o...

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Abstract

The invention provides a lightweight lattice structure parametric modeling and data lightweight processing method. The method comprises the steps of establishing a lattice unit cell structure model and performing lattice connecting rod cylinder structure data lightweight processing. The method is simple and efficient, and is suitable for various parametric modeling software; according to the datalightweight processing method for the lattice cell units, the data size of the cell units can be reduced by 50% or above; after the processed unit cells are converted into the standard format of the SLM technology, rapid array and Boolean operation can be realized, the model processing efficiency is greatly improved, the model memory data is effectively reduced, the operation processing time is greatly prolonged, and the requirement on the computer operation capability in the lattice structure application process is reduced. In addition, the bearing capacity of the lattice structure can be effectively improved by optimizing the structure of the force bearing points at the converging position of the lattice connecting rods.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a lightweight lattice structure parametric modeling and data lightweight processing method. Background technique [0002] As a new type of advanced structural material containing porous and ordered microstructure, ultra-light lattice structure has the characteristics of light weight, high specific strength, specific stiffness, and multi-function, and is considered to be the most promising application in the field of aviation and aerospace. A new generation of lightweight structural and functional integration materials. The lightweight lattice structure has higher porosity and good mechanical properties, and at the same time has designability, which makes it easier to realize multi-functional integrated design. However, in the preparation process, the lattice structure manufactured by the original stamping + investment casting method has a large unit ce...

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Application Information

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IPC IPC(8): G06F30/20
Inventor 许旭鹏钱远宏刘莹莹焦世昆吴冬冬
Owner BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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