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Multi-microstructure-oriented material structure integrated construction method

A technology of microstructure and construction method, applied in instrumentation, geometric CAD, calculation, etc., can solve problems such as inability to realize localized design of microstructure, assumption limitations, etc.

Active Publication Date: 2017-11-24
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] (1) The existing material-structure integrated design model only targets a single microstructure, assuming that a single microstructure is evenly distributed in the macrostructure. This type of design model is very simple, easy to implement numerically, and easy to solve; The local design of the microstructure cannot be realized;

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Embodiment Construction

[0086] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0087] The integrated construction method of material structure oriented to various microstructures provided by the embodiment, its process is as follows figure 1 shown, including the following steps:

[0088] (1) Through the variable density method with a post-processing mechanism, initialize the partition of the macrostructure design domain to form the partition of the macrostructure; first i...

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Abstract

The invention belongs to the technical field of structural optimization and discloses a multi-microstructure-oriented material structure integrated construction method. According to continuously changing material distribution and unit density which are obtained through a traditional variable density method, a material area is divided and subjected to unit density grouping on the basis of a post-processing mechanism, definition and dividing of areas, with different material attributes, in a macrostructure are achieved, and various microstructures in the macrostructure are defined; a material structure integrated design model is established on the basis of a parameterized level set topological optimization method and the homogenization theory, that is, integrated design is carried out according to various defined microstructures and the macrostructure, the parallel design of the macroscopic structure and the microstructures is achieved, and under a given constraint condition, the performance of the overall structure is optimal.

Description

technical field [0001] The invention belongs to the technical field of structure optimization, and more specifically relates to an integrated construction method of material structures for various microstructures. Background technique [0002] The design of mechanical structures includes the construction of macrostructures and the design of local materials; for the construction of macrostructures, it is necessary to seek a reasonable distribution of materials in the structural design domain and achieve the optimal performance of macrostructures under given constraints. Purpose. The local material design is to change the macroscopic equivalent properties of the material by changing the microstructure of the material, and then optimize the product performance. In the construction of the macrostructure, local material elastic properties need to be considered, while in the traditional mechanical structure design, the value of this material elastic property is set to a fixed val...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 高亮高杰肖蜜李好许洁
Owner HUAZHONG UNIV OF SCI & TECH
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