Optimization of Roll Shifting Strategy of Alternately Rolling in Hot Strip Mill

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	Optimization of Roll Shifting Strategy of Alternately Rolling in Hot Strip Mill
其他题名	Optimization of Roll Shifting Strategy of Alternately Rolling in Hot Strip Mill
	Li Weigang 1; Guo Zhaohui 2; Yi Jian 2; Liu Xianghua 3
	2012
发表期刊	JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN	1006-706X
卷号	19 期号:5 页码:37-42
摘要	An optimization solution to roll shifting strategy for alternately rolling campaign is presented. All the strips in a rolling campaign are divided into narrow strips and wide ones, and shifting position of narrow strips is obtained by the recursive method, and then shifting position of wide strips is optimized by NSGA-II which is a multi-objective genetic algorithm. For wide strips, a multi-objective optimization model of roll shifting strategy is proposed, which takes 3 wear contour factors including edge smoothness, body smoothness and edge drop as optimization objectives. The Pareto optimal front of roll shifting strategy can be gained quickly by NSGA-II, which suggests a series of alternative solutions to roll shifting strategy. Analysis shows that the conflict exists among the 3 objectives. The final optimal solution is selected from the Pareto optimal solutions by the weighted-sum decision-making method. Industrial production proves the validity of the solution, and it can improve strip profile of alternately rolling, reduce strip edge wave, and extend the rolling miles of rolling campaigns.
其他摘要	An optimization solution to roll shifting strategy for alternately rolling campaign is presented. All the strips in a rolling campaign are divided into narrow strips and wide ones, and shifting position of narrow strips is obtained by the recursive method, and then shifting position of wide strips is optimized by NSGA-II which is a multiobjective genetic algorithm. For wide strips, a multi-objective optimization model of roll shifting strategy is pro posed, which takes 3 wear contour factors including edge smoothness, body smoothness and edge drop as optimization objectives. The Pareto optimal front of roll shifting strategy can be gained quickly by NSGA-II, which suggests a series of alternative solutions to roll shifting strategy. Analysis shows that the conflict exists among the 3 objectives. The final optimal solution is selected from the Pareto optimal solutions by the weighted-sum decision-making method. Industrial production proves the validity of the solution, and it can improve strip profile of alternately rolling, reduce strip edge wave, and extend the rolling miles of rolling campaigns.
关键词	MULTIOBJECTIVE OPTIMIZATION ALGORITHM hot strip mill alternately rolling work roll shifting NSGA-II pareto optimal solution
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China]
CSCD记录号	CSCD:4538852
引用统计	被引频次：4[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/145467
专题	中国科学院金属研究所
作者单位	1.东北大学 2.Baosteel Technol Ctr, Institute Automat, Shanghai 201900, Peoples R China 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Li Weigang,Guo Zhaohui,Yi Jian,et al. Optimization of Roll Shifting Strategy of Alternately Rolling in Hot Strip Mill[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2012,19(5):37-42.
APA	Li Weigang,Guo Zhaohui,Yi Jian,&Liu Xianghua.(2012).Optimization of Roll Shifting Strategy of Alternately Rolling in Hot Strip Mill.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,19(5),37-42.
MLA	Li Weigang,et al."Optimization of Roll Shifting Strategy of Alternately Rolling in Hot Strip Mill".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 19.5(2012):37-42.