Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III

This paper proposes a modified third generation non-dominated sorting genetic algorithm (mNSGA-III) to overcome the poor convergence of third generation non-dominated sorting genetic algorithm (NSGA-III) in handling discrete topology optimization. It uses the mNSGA-III for the structural optimizatio...

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Autores principales:	GAO Yunkai, MA Chao, LIU Zhe, TIAN Linli
Formato:	article
Lenguaje:	ZH
Publicado:	Editorial Office of Journal of Shanghai Jiao Tong University 2020
Materias:	discrete topology optimization multi-objective optimization non-dominated sorting genetic algorithm Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989
Acceso en línea:	https://doaj.org/article/775453fb15414fb793f13670aa1a9960
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spelling	oai:doaj.org-article:775453fb15414fb793f13670aa1a99602021-11-04T09:34:51ZDiscrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III1006-246710.16183/j.cnki.jsjtu.2020.99.001https://doaj.org/article/775453fb15414fb793f13670aa1a99602020-12-01T00:00:00Zhttp://xuebao.sjtu.edu.cn/CN/10.16183/j.cnki.jsjtu.2020.99.001https://doaj.org/toc/1006-2467This paper proposes a modified third generation non-dominated sorting genetic algorithm (mNSGA-III) to overcome the poor convergence of third generation non-dominated sorting genetic algorithm (NSGA-III) in handling discrete topology optimization. It uses the mNSGA-III for the structural optimization of a body-in-white (BIW) welding production platform. It proposes an advanced extreme point selection to stabilize the normalization of populations. It constructs the finite element model of BIW welding production platform. Using discrete topology optimization, it treats the total mass, maximum stress and z-direction displacements of several nodes of platform as objective functions. It developed a discrete topology optimization program by using MATLAB interfaced the commercial finite element code MSC.Nastran. Finally, it selected the design with appropriate layout in view of stiffness and strength of the structure. The optimal design conforms to the design standards and the total mass reduces by 30.1%. The results show that mNSGA-III gets a more stable optimization process and easy to converge when solving the multi-objective discrete topology optimization problems. The proposed method provides an applicable method for the optimization of giant steel structures and has great values for practical engineering problem.GAO YunkaiMA ChaoLIU ZheTIAN LinliEditorial Office of Journal of Shanghai Jiao Tong Universityarticlediscrete topology optimizationmulti-objective optimizationnon-dominated sortinggenetic algorithmEngineering (General). Civil engineering (General)TA1-2040Chemical engineeringTP155-156Naval architecture. Shipbuilding. Marine engineeringVM1-989ZHShanghai Jiaotong Daxue xuebao, Vol 54, Iss 12, Pp 1324-1334 (2020)
institution	DOAJ
collection	DOAJ
language	ZH
topic	discrete topology optimization multi-objective optimization non-dominated sorting genetic algorithm Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989
spellingShingle	discrete topology optimization multi-objective optimization non-dominated sorting genetic algorithm Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Naval architecture. Shipbuilding. Marine engineering VM1-989 GAO Yunkai MA Chao LIU Zhe TIAN Linli Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III
description	This paper proposes a modified third generation non-dominated sorting genetic algorithm (mNSGA-III) to overcome the poor convergence of third generation non-dominated sorting genetic algorithm (NSGA-III) in handling discrete topology optimization. It uses the mNSGA-III for the structural optimization of a body-in-white (BIW) welding production platform. It proposes an advanced extreme point selection to stabilize the normalization of populations. It constructs the finite element model of BIW welding production platform. Using discrete topology optimization, it treats the total mass, maximum stress and z-direction displacements of several nodes of platform as objective functions. It developed a discrete topology optimization program by using MATLAB interfaced the commercial finite element code MSC.Nastran. Finally, it selected the design with appropriate layout in view of stiffness and strength of the structure. The optimal design conforms to the design standards and the total mass reduces by 30.1%. The results show that mNSGA-III gets a more stable optimization process and easy to converge when solving the multi-objective discrete topology optimization problems. The proposed method provides an applicable method for the optimization of giant steel structures and has great values for practical engineering problem.
format	article
author	GAO Yunkai MA Chao LIU Zhe TIAN Linli
author_facet	GAO Yunkai MA Chao LIU Zhe TIAN Linli
author_sort	GAO Yunkai
title	Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III
title_short	Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III
title_full	Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III
title_fullStr	Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III
title_full_unstemmed	Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III
title_sort	discrete topology optimization of body-in-white welding production platform based on nsga-iii
publisher	Editorial Office of Journal of Shanghai Jiao Tong University
publishDate	2020
url	https://doaj.org/article/775453fb15414fb793f13670aa1a9960
work_keys_str_mv	AT gaoyunkai discretetopologyoptimizationofbodyinwhiteweldingproductionplatformbasedonnsgaiii AT machao discretetopologyoptimizationofbodyinwhiteweldingproductionplatformbasedonnsgaiii AT liuzhe discretetopologyoptimizationofbodyinwhiteweldingproductionplatformbasedonnsgaiii AT tianlinli discretetopologyoptimizationofbodyinwhiteweldingproductionplatformbasedonnsgaiii
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Discrete Topology Optimization of Body-in-White Welding Production Platform Based on NSGA-III

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