Variable parameter-based topology optimization of functionally-graded lattice structures with multi-domains

被引：0

作者：

Li Z. ^{[1
]}

Liu L. ^{[1
]}

Wang T. ^{[1
]}

Peng X. ^{[2
]}

Wang B. ^{[3
]}

Yi B. ^{[1
,4
]}

机构：

[1] School of Traffic and Transportation Engineering, Central South University, Changsha

[2] School of Mechanical Engineering, Zhejiang University of technology, Hangzhou

[3] School of Mechanical Engineering, Zhejiang University, Hangzhou

[4] State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou

来源：

Jisuanji Jicheng Zhizao Xitong/Computer Integrated Manufacturing Systems, CIMS | 2024年 / 30卷 / 06期

关键词：

functionally-graded structures; multi-domains; topology optimization; variable parameter;

D O I：

10.13196/j.cims.2021.0779

中图分类号：

学科分类号：

摘要：

To construct functionally-graded structures with different shapes and properties, a variable parameter-based topology optimization of functionally-graded lattice structures with multi-domains was proposed, and a functionally-graded lattice structures with smooth continuity was constructed both within each domain and between different domains. The design domain was divided into multiple domains, and the Helmholtz PDE equation was used to filter the density of each domain, and different local volume constraint was imposed for each domain. Then the local volume constraint was integrated into the Solid Isotropic Material with Penalization (SIMP) based topology optimization method to achieve the construction of different functionally-graded lattices in each domain, while maintaining smooth continuity of structures in and between domains. The effectiveness of the proposed method was verified through the design and manufacture for the optimized functionally-graded lattice structures with the cantilever beam and the MBB beam. © 2024 CIMS. All rights reserved.

引用

页码：1948 / 1958

页数：10

共 34 条

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