基于差分进化算法的大棒材粗轧孔型系统优化  

Optimization of the Roll Pass System of Heavy Bar for Rough Rolling Process Based on Differential Evolution Algorithm

作　　者：曹燕[1] 郝震宇[1] 张龙[1] 李佑河 章小峰[1] 黄贞益[1] 

机构地区：[1]安徽工业大学冶金工程学院,安徽马鞍山243002 [2]南京钢铁股份有限公司棒材厂,江苏南京210035

出　　处：《钢铁研究学报》2014年第8期13-18,共6页Journal of Iron and Steel Research

基　　金：国家自然科学基金资助项目(51275003);轧制技术及连轧自动化国家重点实验室开放课题(2009002)

摘　　要：以南钢大棒材粗轧生产线为研究背景,以能耗最小和变形均匀为目标,采用差分进化算法对其粗轧工艺进行优化,并设计了相应的粗轧孔型系统。利用MSC.Marc有限元软件建立了粗轧工艺的三维弹塑性热力耦合有限元模型,通过现场试验数据验证了模型的正确性。同时对新工艺进行有限元模拟计算,并与现有工艺进行对比分析。结果表明:新工艺及孔型系统的道次变形均匀、中间坯尺寸精确,粗轧轧制总能耗降低了7.13%。Based on the rough rolling process of heavy bar for Nanjing Steel, the rough rolling process was optimized by using of the differential evolution algorithm with least energy consumption and deformation uniformity as the objective function, and then the rough rolling pass system was designed. Then a model of 3D elastic-plastic and thermo-mechanical FEM was established by MSC.Marc for the current process. The correctness of model was veri- fied by using experimental date of field. Then FEM was also used to analyze the rough rolling process after optimi- zation. The results show that the new process and pass system can guarantee deformation uniformity and dimensional accuracy of intermediate billet, and the energy consumption decreased by 7.13 % .

关 键 词：粗轧 大棒材 孔型系统 差分进化算法 有限元 

分 类 号：TG335[金属学及工艺—金属压力加工] TP18[自动化与计算机技术—控制理论与控制工程]