热轧带钢交叉轧制窜辊策略优化

热轧带钢交叉轧制窜辊策略优化

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时间:2017-11-25

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1、JOURNALOFIRONANDSTEELRESEARCH,INTERNATIONAL.2012,19(5):37-42OptimizationofRollShiftingStrategyofAlternatelyRollinginHotStripMill1,2,GUOZhao-hui2,YIJia

2、n2,LIUXiang-hua3LIWei-gang(1.CollegeofInformationScienceandEngineering,NortheasternUniversity,Shenyang110819,Liaoning,China;2.InstituteofAutomation,BaosteelTechnologyCenter,Shanghai201900,China;3.ResearchInstituteofScienceandTechnology,NortheasternUniversity,Shenyang110819,Liaoning,Ch

3、ina)Abstract:Anoptimizationsolutiontorollshiftingstrategyforalternatelyrollingcampaignispresented.Allthestripsinarollingcampaignaredividedintonarrowstripsandwideones,andshiftingpositionofnarrowstripsisob-tainedbytherecursivemethod,andthenshiftingpositionofwidestripsisoptimizedbyNSGA-I

4、Iwhichisamulti-objectivegeneticalgorithm.Forwidestrips,amulti-objectiveoptimizationmodelofrollshiftingstrategyispro-posed,whichtakes3wearcontourfactorsincludingedgesmoothness,bodysmoothnessandedgedropasoptimiza-tionobjectives.TheParetooptimalfrontofrollshiftingstrategycanbegainedquick

5、lybyNSGA-II,whichsuggestsaseriesofalternativesolutionstorollshiftingstrategy.Analysisshowsthattheconflictexistsamongthe3objec-tives.ThefinaloptimalsolutionisselectedfromtheParetooptimalsolutionsbytheweighted-sumdecision-makingmethod.Industrialproductionprovesthevalidityofthesolution,a

6、nditcanimprovestripprofileofalternatelyroll-ing,reducestripedgewave,andextendtherollingmilesofrollingcampaigns.Keywords:hotstripmill;alternatelyrolling;workrollshifting;NSGA-II;paretooptimalsolutionWiththeincreasinghighdemandofhotstripclicshiftingmethod,includingcyclicfixedstepandqual

7、ityfromtheusers,nowtherequirementsofpre-cyclicvariablestep.Ref.[2]adoptedacyclicfixedcisestripgeometrysizeliesnotonlyinthickness,stepmethodtodeterminetheoptimumshiftingstep:width,flatnessandcrown,butalsoinstripcon-withthedifferentshiftingsteps,thedifferentworktour.Intheprocessoffinish

8、ingro

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