Topology Optimization Design and Experimental Research of a 3D-Printed Metal Aerospace Bracket Considering Fatigue Performance

doi:10.3390/app11156671

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	Topology Optimization Design and Experimental Research of a 3D-Printed Metal Aerospace Bracket Considering Fatigue Performance
	Y. S. Chen; Q. L. Wang; C. Wang; P. Gong; Y. C. Shi; Y. Yu and Z. Y. Liu
刊名	Applied Sciences-Basel
	2021
卷号	11 期号:15 页码:15
DOI	10.3390/app11156671
英文摘要	In the aerospace industry, spacecraft often serve in harsh operating environments, so the design of ultra-lightweight and high-performance structures is a major requirement in aerospace structure design. In this article, a lightweight aerospace bracket considering fatigue performance was designed by topology optimization and manufactured by 3D-printing. Considering the requirements of assembly with a fixture for fatigue testing and avoiding stress concentration, a reconstructed model was presented by CAD software before manufacturing. To improve the fatigue performance of the structure, this article proposes the design idea of abstracting the practiced working condition of the bracket subjected to cycle loads in the vertical direction via a multiple load-case topology optimization problem by minimizing compliance under a variety of asymmetric extreme loading conditions. Parameter sweeping was used to improve the computational efficiency. The mass of the new bracket was reduced by 37% compared to the original structure. Both numerical simulation and the fatigue test were implemented to support the validity of the new bracket. This work indicates that the integration of the proposed topology optimization design method and additive manufacturing can be a powerful tool for the design of lightweight structures considering fatigue performance.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/65704]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. S. Chen,Q. L. Wang,C. Wang,et al. Topology Optimization Design and Experimental Research of a 3D-Printed Metal Aerospace Bracket Considering Fatigue Performance[J]. Applied Sciences-Basel,2021,11(15):15.
APA	Y. S. Chen,Q. L. Wang,C. Wang,P. Gong,Y. C. Shi,&Y. Yu and Z. Y. Liu.(2021).Topology Optimization Design and Experimental Research of a 3D-Printed Metal Aerospace Bracket Considering Fatigue Performance.Applied Sciences-Basel,11(15),15.
MLA	Y. S. Chen,et al."Topology Optimization Design and Experimental Research of a 3D-Printed Metal Aerospace Bracket Considering Fatigue Performance".Applied Sciences-Basel 11.15(2021):15.