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40420054IronandSteelVol.40,No.4April20051,1,1,2(1.,310027;2.,201901):2050,,,,,,:;;;;:TH137:A:04492749X(2005)0420049204SimulationSystemInvestigationandBasicAutomationofWidthControlforRoughRollingZOUJun1,FUXin1,YANGHua2yong1,ZHANGJian2min2(1.TheStateKeyLabofFluidPowerTransmissionandControl,ZhejiangUniversity,Hangzhou310027,China;2.TechnologyCenterofBaosteelGroup,Shanghai201901,China)Abstract:Thebasicfeaturesofstripwidthcontrolincludingautomaticwidthcontrol(AWC),progressivewidthcontrol(PWC),shortstrokecontrol(SSC)ofBaosteel2050mmroughrollingareanalyzedindetails.Thedynamicmodelofthehydraulicsystemforwidthcontrolandthebasicautomationcontrolstrategymodelwereestablishedbasedontheactualsystem.Thesimulationresultswereverifiedbytheindustrialdataandcanbereferredtotheon2lineregulationofwidthcontrolparameters.Keywords:widthcontrol;SSC;AWC;PWC;numericalsimulation:(19772),,;E2mail:feifei7719@yahoo.com.cn;:2004207218,,,,[1]:,,;(BA),,:,:(AWC)(PWC)(SSC)AWC,,AWCPWC,,PWC,SSC,,,,,[2]120502080,4,,,401Fig.1Hydraulicedgerscrewdownsystem,,20501.150Hz,[3]:x(s)I(s)=Kvs/v+1(1)v;Kv;s;x(s);I(s),,:qV=Cdx2(ps-pc)(pspc)(2)qV=-Cdx2(pc-ps)(pcps)(3),,:qV=Cdx2pc(pc0)(4)qV=-Cdx-2pc(pc0)(5)ps;pc;Cd;;x;;qV1.2,(6):dpcdt=EVc+Acxp(qV-Acxp-C(pc-ph))(6)E;Vc;xp;C;ph;Ac1.3,,,[4]pcAc-phAh=meX0+(X0-x0)+F(7)phAh-pcAc+(X0-x0)=msx0+k0x0+x0(8)xp=X0-x0(9)me;ms;;F;k0;;X0;x022.1,,,[2]2050(10):y=4i=0a(i)(l-x)i(10)l;x;y054:2,,015mm,2.2AWC,,,AWC,,3,2Fig.2Shortstrokecontrolofheadandtail3Fig.3SchematicAWCdiagram4Fig.4AWCoutput,KAWC,AWC4AWC,AWC,AWC2.3PWC,,,,PWC,,,KPWC(5)5Fig.5SchematicPWCdiagram6Fig.6PWCoutput15401Table1Sampledstripsizeaccuracywithandwithoutwidthcontrolstrategies/mm/mm20032032101345.51.351478.51.5220032052151563.51.011322.50.886PWC,,12050SSCAWCPWC,,3,,(AWCPWCSSC)SSCAWCPWC,:[1].[J].,1998,(2):20223.(PEIYa2wen.WidthControlofHotRolledStripbyComputer[J].ResearchonIronandSteel,1998,(2):20223.)[2],.[M].:,1996.(WANGXiang2neng,DINGXiu2kun.ModernTan2demMillControl[M].Shenyang:NortheastUniversityPress,1996.)[3].[M].:,1989.(LUYuan2zhang.HydraulicSystemModelingandAnalysis[M].Shanghai:ShanghaiJiaoTongUniversityPress,1989.)[4].[M].:,1979.(SUNYi2kang.MathematicalModelsforHotRolling[M].Beijing:MetallurgicalIndustryPress,1979.)(45),4(1),,,;,,(2)KDD,,,:[1],.[J].,2002,1:22225.(SUNLin,WUBing2huo.StudyonStrategyandModelofLoadDistributionforShapeControlinReversiblePlateMill[J].ResearchonIronandSteel,2002,1:22225.)[2],,.[J].,2001,7(3):35238.(MUZhi2chun,LIUKe,SUNPeng.ANewMethodforBuildingLoad2distri2butingModelinPlateRollingProcess[J].ApplicationofCom2puter,2001,7(3):35238.)[3],.[M].:,2003.912125.(SHAOFeng2jing,YUZhong2qing.PrincipleandAlgorithmofDataMining[M].Beijing:ChinaWaterPowerPress,2003.912125.)[4]AgrawalR.SrikantR.FastAlgorithmsforMiningAssociationRules[A].Proceedingsofthe20thInternationalConferenceonVeryLargeDataBase[C],Santiago:ACMPress,1994.4872499.[5],.[J].(),2002,22(1):45249.(MUHong2yu,XIONGJin2ming.DataMingBasedonDataWarehouse[J].JournalofShaoxingUniversity(NaturalScience),2002,22(1):45249.)25