摘要
为了提高辊缝在线预报精度,在传统影响函数法基础上,建立可以进行在线计算的快速辊系变形计算模型.该模型综合考虑了各种因素对辊系纵向刚度的影响,省去了繁琐的补偿模型实验过程,在提高计算精度的同时大大提高了计算速度.应用日钢1580热连轧数据进行了离线计算,分析了轧件宽度对辊系纵向刚度的影响,并与传统宽度补偿模型计算结果进行了比较.模型计算精度有所提高,每个工况耗时20ms,模型可以在线应用.
In order to reduce the deviation of online forecast for gap, an online calculation model of roll vertical stiffness called the fast calculation model of roll bounce was established on the base of the influence function method. This model does not need complicated experiment for compensation. Its calculation accuracy as well as calculation speed was improved. With the data from a 1580 hot tandem rolling system in Rizhao Rolling Mill, off-line calculations were done to analyze the influence of strip width on the roll vertical stiffness, and the results were compared with the ones by using traditional width compensation models. It takes 20 ms to calculate in every condition with the proposed model and the precision is improved, indicating that the model can be used online in a rolling mill.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2009年第11期1452-1456,共5页
Journal of University of Science and Technology Beijing
基金
国家高技术研究发展计划资助项目(No.2009AA04Z163)
关键词
热轧
刚度
在线模型
宽度补偿
hot rolling
stiffness
online model
width compensation
