Hierarchical Structure Topology Optimization Based on Substructure Method

被引：3

作者：

Fu J. ^{[1
]}

Sun P. ^{[1
]}

Du Y. ^{[1
]}

Tian Q. ^{[1
]}

Gao L. ^{[2
]}

机构：

[1] College of Mechanical & Power Engineering, China Three Gorges University, Yichang

[2] State Key Laboratory of Digital Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan

来源：

Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 16期

关键词：

Hierarchical structure; Parametric level set method; Substructure method; Topology optimization;

D O I：

10.3969/j.issn.1004-132X.2021.16.006

中图分类号：

学科分类号：

摘要：

To avoid the separation of scales in the hierarchical structures topology optimization, and to maintain the connection between different cellular structures, a hierarchical structure topology optimization method was proposed based on the substructure method. The topology optimization of cellular structures was divided into two hierarchies with the parametric level set method. The topology configuration of the cellular structure was optimized in meso-hierarchy. The spatial distribution of the cellular structure was optimized in macro-hierarchy. The relationship between macro-structure and meso-structure was established using the substructure method. The meso-structures was condensed into a super element, which was then used as the basic element of macro-structures for the structural analysis and optimization. Numerical examples show that the proposed method is effective for the 2D and 3D hierarchical structure topology optimization. The proposed method may effectively guarantee the connection between different cellular structures when considering multiple types of cellular structures in the hierarchical structure design. © 2021, China Mechanical Engineering Magazine Office. All right reserved.

引用

页码：1937 / 1944and1951

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