Calculation Method of Optimal Speed Profile for Hot Plate During Controlled Cooling Process

作     者：WANG Bing-xing CHEN Xiao-lin TIAN Yong WANG Zhao-dong WANG Jun ZHANG Dian-hua 

作者机构：State Key Laboratory of Rolling and AutomationNortheastern UniversityShenyang 110004LiaoningChina 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2011年第18卷第5期

页      面：38-41页

核心收录：

学科分类：080706[工学-化工过程机械] 0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 0807[工学-动力工程及工程热物理] 083201[工学-食品科学] 

主　　题：plate controlled cooling homogeneous cooling speed profile Cholesky decomposition method 

摘      要：The healthy and rapid development of the controlled cooling technology was hampered by the uneven cooling phenomenon. During the process of hot plate production,the homogeneous cooling along the length direction of plate was constrained by lots of factors. And because the speed was a flexible control parameter,the calculation method of optimal speed profile was developed based on the measured start cooling temperature and its matrix equation was solved by the Cholesky decomposition method. The optimal speed profile was used in online control system. As a result,the temperature distribution along the plate length direction was relatively uniform,and 95% of measured final cooling temperature difference from the target temperature 700 ℃ was controlled within ±20 ℃.