Topology Optimization Design of Functionally Graded Cellular Structure with Integrated Load Bearing and Heat Dissipation

被引：0
|
作者：
Du Y. [1 ,2 ]
Zhang Y. [2 ]
Fu J. [1 ,2 ]
Tian Q. [2 ]
Zhou X. [2 ]
Wang L. [2 ]
机构：
[1] Hubei Key Laboratory of Hydroelectric Machinery Design & Maintenance, Yichang
[2] College of Mechanical & Power Engineering, China Three Gorges University, Yichang
来源：
Jisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics | 2021年 / 33卷 / 07期
关键词：
Functionally graded cellular structures; Load-bearing and heat dissipation integration; Minimal surface; Numerical homogenization; Topology optimization;
D O I：
10.3724/SP.J.1089.2021.18642
中图分类号：
学科分类号：
摘要：
To meet the requirements of multi-functional structures for the integration of load-bearing and heat dissipation, a topology optimization design method for functionally graded cellular structures is proposed. The C0 continuous graded cellular structure modeling is realized firstly based on the triply periodic minimal surface. The numerical homogenization method is then applied to calculate the macroscopic equivalent elastic tensor and thermal conductivity tensor of cellular structures. Finally, the volume fraction of the cellular structures is used as the design variables to establish a weighted multi-objective topology optimization model to minimize structural compliance and optimize thermal conduction efficiency. The model is then solved by the optimality criteria method. Numerical results show that compared with the single-objective topology optimization design, this method sacrifices lower heat dissipation performance to obtain higher load-bearing performance, which significantly improves the overall performance of the cellular structure. © 2021, Beijing China Science Journal Publishing Co. Ltd. All right reserved.
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页码：1141 / 1150
页数：9
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