基于模拟退火算法的中厚板精轧机工作辊热膨胀模型

基金项目:

国家自然科学基金资助课题(No.59835170)

详细信息

Thermal Contour Model of Work Roll in Plate Mills by Simulated Annealing Algorithm

1. Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. Wuhan Iron and Steel(Group) Co, Wuhan 430083, China

摘要: 应用模拟退火算法和有限差分法,建立起适用于武钢2800 mm四辊轧机的工作辊热膨胀计算模型.此模型是一个半经验的工程运用公式,其参数的估计采用传统的优化方法难以解决,而用模拟退火算法却能得到有效地解决.应用此模型来预报工作辊的一个轧制单位全过程的热凸度变化值,其精度较高.生产使用后表明,此模型具有较高的工程实用性,可以应用于其他各类轧机的轧辊热辊形预测.
- 热辊形 /
- 模拟退火法 /
- 有限差分法 /
- 中厚板 /
- 板形
Abstract: Employing Simulated Annealing Algorithm(SAA) and Finite Difference Method, a calcula-tion model of work roll thermal contour was built in a 2800mm 4-high mill of Wuhan Iron and Steel (Group) Co.. The model was a semi-theory practical formula. Its pattern and magnitude were still hardly defined with classical optimization methods. But the problem could be resolved by SAA. It was pretty high precision to predict the values of work roll thermal crown in a rolling unit. After one year application, the results show that the model is feasible in engineering, and it could be applied LO predict the roll thermal contour of other mills.
- thermal contour /
- simulated annealing algorithm /
- finite difference method /
- plate /
- shape