SENSITIVITY ANALYSIS FOR ROLLING PROCESS BASED ON SUPPORT VECTOR MACHINE  

作　　者：HuangYanwei WuTihua ZhaoJingyi WangYiqun 

机构地区：[1]DepartmentofAutomation,ShanghaiJiaotongUniversity,Shanghai200030,China [2]CollegeofMechanicalEngineering,YanshanUniversity,Qinhuangdao066004,China

出　　处：《Chinese Journal of Mechanical Engineering》2005年第2期271-274,共4页中国机械工程学报（英文版）

基　　金：This project is supported by Provincial Natural Science Foundation of Hebei, China(No.503293).

摘　　要：A method for the calculation of the sensitivity factors of the rollingprocess has been obtained by differentiating the roll force model based on support vector machine.It can eliminate the algebraic loop of the analytical model of the rolling process. The simulationsin the first stand of five stand cold tandem rolling mill indicate that the calculation forsensitivities by this proposed method can obtain a good accuracy, and an appropriate adjustment onthe control variables determined directly by the sensitivity has an excellent compensation accuracy.Moreover, the roll gap has larger effect on the exit thickness than both front tension and backtension, and it is more efficient to select the roll gap as the control variable of the thicknesscontrol system in the first stand.A method for the calculation of the sensitivity factors of the rollingprocess has been obtained by differentiating the roll force model based on support vector machine.It can eliminate the algebraic loop of the analytical model of the rolling process. The simulationsin the first stand of five stand cold tandem rolling mill indicate that the calculation forsensitivities by this proposed method can obtain a good accuracy, and an appropriate adjustment onthe control variables determined directly by the sensitivity has an excellent compensation accuracy.Moreover, the roll gap has larger effect on the exit thickness than both front tension and backtension, and it is more efficient to select the roll gap as the control variable of the thicknesscontrol system in the first stand.

关 键 词：Support vector machine(SVM) Cold tandem rolling mill MODELING Sensitivity 

分 类 号：TG33[金属学及工艺—金属压力加工] O153.3[理学—数学]