2D Minimum Compliance Topology Optimization Based on a Region Partitioning Strategy

doi:10.32604/cmes.2023.025153

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	2D Minimum Compliance Topology Optimization Based on a Region Partitioning Strategy
	C. Wang, T. Zuo, H. Han, Q. Wang, H. Zhang and Z. Liu
	2023
发表期刊	CMES - Computer Modeling in Engineering and Sciences
ISSN	15261492
卷号	136 期号:1 页码:655-683
摘要	This paper presents an extended sequential element rejection and admission (SERA) topology optimization method with a region partitioning strategy. Based on the partitioning of a design domain into solid regions and weak regions, the proposed optimization method sequentially implements finite element analysis (FEA) in these regions. After standard FEA in the solid regions, the boundary displacement of the weak regions is constrained using the numerical solution of the solid regions as Dirichlet boundary conditions. This treatment can alleviate the negative effect of the material interpolation model of the topology optimization method in the weak regions, such as the condition number of the structural global stiffness matrix. For optimization, in which the forward problem requires nonlinear structural analysis, a linear solver can be applied in weak regions to avoid numerical singularities caused by the over-deformed mesh. To enhance the robustness of the proposed method, the nonmanifold point and island are identified and handled separately. The performance of the proposed method is verified by three 2D minimum compliance examples. © 2023 Tech Science Press. All rights reserved.
DOI	10.32604/cmes.2023.025153
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67916
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	C. Wang, T. Zuo, H. Han, Q. Wang, H. Zhang and Z. Liu. 2D Minimum Compliance Topology Optimization Based on a Region Partitioning Strategy[J]. CMES - Computer Modeling in Engineering and Sciences,2023,136(1):655-683.
APA	C. Wang, T. Zuo, H. Han, Q. Wang, H. Zhang and Z. Liu.(2023).2D Minimum Compliance Topology Optimization Based on a Region Partitioning Strategy.CMES - Computer Modeling in Engineering and Sciences,136(1),655-683.
MLA	C. Wang, T. Zuo, H. Han, Q. Wang, H. Zhang and Z. Liu."2D Minimum Compliance Topology Optimization Based on a Region Partitioning Strategy".CMES - Computer Modeling in Engineering and Sciences 136.1(2023):655-683.

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