作　　者： ; ; ; ;

机构地区： 东北大学材料与冶金学院轧制技术及连轧自动化国家重点实验室

出　　处： 《东北大学学报（自然科学版）》 2004年第10期973-976,共4页

摘　　要： 以考虑冷连轧带钢轧制过程变形区金属塑性变形以及入口、出口弹性变形的变形抗力模型和Bland Ford Hill轧制力模型为基础,将实测轧制力值代入轧制力计算模型建立起以变形抗力后计算值为未知量的非线性方程,求解该方程可以得到变形抗力后计算值,进而通过指数平滑法计算出变形抗力模型中的自适应学习系数·实际应用表明,由该方法得到的变形抗力后计算值的精度和稳定性能满足模型在线控制要求,可以提高在线控制变形抗力模型和轧制力模型的计算精度· A nonlinear formula is derived for tandem strip cold rolling process based on Bland-Ford-Hill model of rolling force and the deformation resistance model in view of both the plastic deformation of workpiece in deformation zone and elastic deformation at either the entrance or the exit of the zone. The formula is given in terms of indirect substitution, i.e., substitute the measured rolling force values for the corresponding unknown parameters in the deformation resistance model and then solve the formula to obtain the actual value of the resistance to deformation. Further, the adaptive learning coefficient of the deformation resistance model can therefore be obtained by way of exponential smoothing average. The application results showed that the accuracy and stability of the actual value of the resistance to deformation obtained in such a way are available to meet the requirement of on-line process control and improve the calculation accuracy of both the deformation resistance model and rolling force model.

关 键 词： 冷连轧 变形抗力模型 轧制力模型 后计算 自适应学习

领　　域： [金属学及工艺]