中国机械工程

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基于有约束多目标进化算法的冷轧负荷分配分析

孙浩1,2;肖宏3;胡庆军4   

  1. 1.燕山大学电气工程学院,秦皇岛,066004
    2.燕山大学机械工程博士后流动站,秦皇岛,066004
    3.燕山大学机械工程学院,秦皇岛,066004
    4.天津电气科学研究院有限公司,天津,300301
  • 出版日期:2017-01-10 发布日期:2017-01-04
  • 基金资助:
    燕山大学博士基金资助项目(B963);
    国家自然科学基金委员会与宝钢集团有限公司联合资助项目(U1260203);
    河北省自然科学基金资助项目(F2016203249);
    河北省高等学校创新团队领军人才培育计划资助项目(LJRC013);
    国家冷轧板带装备及工艺工程技术研究中心开放课题资助项目(2012005)

Analysis for Load Distribution of Tandem Cold Rolling Based on Constrained Multiobjective Evolutionary Algorithm

SUN Hao1,2;XIAO Hong3;HU Qingjun4   

  1. 1.School of Electrical Engineering,Yanshan University, Qinhuangdao,Hebei,066004
    2.PostDoctoral Stations of Mechanical Engineering, Yanshan University, Qinhuangdao,Hebei,066004
    3.School of Mechanical Engineering, Yanshan University,Qinhuangdao,Hebei,066004
    4.Research Institute of Electric Science Co.,Ltd.,Tianjin,300301
  • Online:2017-01-10 Published:2017-01-04

摘要: 冷轧负荷分配问题可以抽象为一个有约束多目标优化问题。为解决此问题,提出了基于环境Pareto支配选择策略的有约束多目标进化算法。该算法更加客观地评价了两个不同解的优劣,利用优秀不可行解加速算法收敛。以等功率裕量、最小轧制能耗、最小综合打滑函数、末机架板形良好轧制力为优化目标,利用有约束多目标进化算法得到了4个目标函数之间的定量关系,使决策者不需要掌握复杂的轧制理论知识就可以直观地掌握轧制规律,并进一步说明了多目标策略在压下负荷分配中的必要性。

关键词: 有约束多目标优化问题, 约束处理技术, 冷轧压下负荷分配, 差分进化算法

Abstract: The load distribution of tandem cold rolling might be abstracted as a constrained multiobjective optimization problem. To solve this problem, an evolution algorithm was proposed based on environmental Pareto dominated selection strategy. The algorithm which accelerated the convergence speed by excellent infeasible solutions gave a more objective evaluation of the different solutions. Taking the power margin, minimum total rolling energy consumption, minimum slip factor and the best rolling force at last rack as optimizing criterion, the quantitative relationship among four objective functions was obtained by the constrained multiobjective evolutionary algorithm, which made decisionmaker grasp the rules of rolling intuitively without proficient in complex rolling theory knowledge. And the necessity of the multiobjective strategy in the load distribution of tandem cold rolling was illustrated.

Key words: constrained multiobjective optimization problem, constrainthandling technique, the load distribution of tandem cold rolling, differential evolution algorithm

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