摘要
提出了一种分析热轧带钢金属横向流动问题的新方法.首先使用ANSYS软件建立辊系-轧件静力学耦合模型,计算并提取变形后工作辊有载辊形曲线;然后使用ANSYS/LS-DYNA建立动力学分析模型,采用己得到的有载辊形曲线,模拟带钢轧制过程,求解得到沿带钢全宽的横向流动状态;并进一步分析了弯辊力、工作辊辊形以及来料凸度变化等因素对带钢金属横向流动的影响,得到基于插值计算的带钢横向流动计算模型.有限元方法验证了计算模型的可靠性.
A new method was proposed for analyzing metal transverse flow in hot rolling processes. Firstly a static roll-strip coupling model was established by ANSYS finite element simulation software, and the work roll contour under loading was extracted from the calculation results. Secondly, with the extracted work roll contour, a dynamic roll-strip coupling model was built by ANSYS/LS-DYNA simulation software and the rolling process was well simulated, then the metal transverse flow state in the whole strip width range was solved. Besides, the influences of bend force, initial roll contours, and strip crown on the metal transverse flow were analyzed. On the basis of these analyses, a calculation model of metal transverse flow during hot rolling was obtained by an interpolation method. The model was proved to be reliable by the finite element method.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2013年第2期222-227,共6页
Journal of University of Science and Technology Beijing
基金
国家科技支撑计划资助项目(2011BAE23B00)
关键词
热轧
带钢
金属流动
有限元法
数学模型
插值
hot rolling
strip steel
metal flow
finite element method
mathematical models
interpolation
