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： 《轧钢》 2005年第3期45-47,63,共4页

摘　　要： 针对热连轧过程中活套起套时可能产生的带钢“缩颈”现象,提出了“软接触”概念,将活套起套过程看作是活套电机加速度受限条件下时间最短时的角度最优控制问题,给出了活套初始高度的预报计算式,并用自适应方式来增加活套初始高度的预测精度。分析了起套过程中活套电机的加速度、速度、角位移之间的关系,并根据电机的运动特性和工艺要求,给出了各阶段最优的电机速度和电流设定曲线。 In this paper the concept of soft touch is introduced, considering the probably caused ＂necking down＂ of the looper rising up during the hot strip rolling, Looper rising up could be looked as the best angle control of the least time on the limited acceleration of the looper motor. The looper initialized length prediction is given and the precision of the looper initiated length prediction is strengthened through the adaptive method. The acceleration, speed, distance of the looper are analyzed during the looper rising up. Based on the motor＇s kinetic characteristic and required technics, the best speed and the current setup curve are gradually given.

关 键 词： 带钢热连轧 活套 软接触 最优控制

领　　域： [金属学及工艺] [金属学及工艺]