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CAMEOCAE©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:863(2005AA512020).:(1982-),,,,.:1000-1646(2008)01-0046-04MW,,,,(,110023):,,.,BLADEANSYSSUT21000,IEC,MPC,.:,,,.:;;;;:TM614:AStrengthanalysisofMWwindturbinehubSUNChuan2zong,YAOXing2jia,SHANGuang2kun,CHENLei,JINJia2qi(WindEnergyInstitute,ShenyangUniversityofTechnology,Shenyang110023,China)Abstract:Hubisakeycomponentlinkingprincipalaxiswithvaneinwindturbines,bearingwindloadanddeliveringtorsion.Therefore,itisimportanttoanalyzeaccuratelystrengthofthehub.ThestressdistributionofthehubintheSUT21000windturbinewascalculatedusingBLADEandANSYSsoftware.TheultimateloadsofthehubwereobtainedbasedonIECstandardandanequivalentmodelwasbuiltbymultipointconstraintelementsandequivalentsimplifiedtechnologyinanalysis.Thestressoftheboltwasalsochecked.Theanalysisresultsindicatethatthehubandboltssatisfytechnicalrequirements.Experimentalresultsshowthattheproposedschemeisvalidandhastheadvantagesofpreciselyoptimizingstructureandlightweightcomparedwiththeoreticalmethod.Keywords:windturbine;hub;bolt;FEA;staticstressANSYS,,[1];BLADEGarradHassanandPartnersLimited,,,[2].ANSYS,BLADE,,,1MW,,,.11MWSUT21000,30120082JournalofShenyangUniversityofTechnologyVol130No11Feb12008CAMEOCAE©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[3],1,2.1Fig11WECstructureandcoordinatesystem2Fig12Sketchofhub,120.,,.,[4-5].,,.,,[6-7].2IEC6140021,BLADE,1135.BLADE34,1.3BLADEFig13BLADEmodelofhub4Fig14ModelofloadingonBLADE1Tab11Workingconditionandloading123Fx118i143111441514812Fy611e15417-18315-15812Fz115i521134861152212Mx611e237911264719251813My118i231319229413233412Mz711h-14918-14819-150173311SOLID2WORKSPARASOLIDANSYS,.10,.,KU=F(1):K;U;746,:MWCAMEOCAE©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=uj(2)ei1ej2=0(3)ei1ej3=0(4)=-tan-1ei2ej3ei3ej3=0(5):uii;eii;.(2)(4)[8],.56,57098,97960.BLADE1,2.5Fig15ANSYSmodelofhub6Fig16Modelofbeamunit2Tab12Materialpropertyofhub(gcm-3)MPaMPa712200000013250312,UxUyUz..,.313710,,,,151MPa,7Fig17Loadandrestriction8Fig18Distributionofmaximummainstress9Fig19Distributionofequivalentstress8430CAMEOCAE©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=44100N.,,QpMAWz+Fmax(6):Qp;M,3197108Nmm;A,511506mm2;W,2121108mm3;Z,50;Fmax,26008617N.QpMAWz+FmaxQp3197107511506212110850+26008617Qp27845611(N),QpkfRfz+Fmax(7):kf,112;R,44100N;f([1]621),0113.QpkfRfz+FmaxQp11244100011350+26008617Qp26822812(N)27845611N,Qp=280000N,,QQ=CLCLCFF+Qp(8),[3]623CLCLCF=0125Q=CLCLCFF+Qp=012526008617+2800000=34502117(N)(9)1019,b=1040MPa,012=940MPa,261211mm,0=4Pd21=43450211731142612112=639175=bkjtkcl0=10401115111639175=11291129,.4BLADEANSYS,,.:[1],.ANSYS[M].:,2002.(LIUTao,YANGFeng2peng.ProficiencyinANSYS[M].Beijing:TsinghuaUniversityPress,2002.)[2]BurtonT,SharpeD,JenkinsN,etal.Windenergyhandbook[M].England:JohnWiley&SonsLtd,2001:330-340.[3].[M].:,1997:82-105.(GAOZe2yuan.Machinedesign[M].Shenyang:North2easternUniversityPress,1997:82-105.)(107)946,:MWCAMEOCAE©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[2],,,.Agent[J].,1999,36(11):1310-1314.(MAOXin2jun,WANGHuai2min,CHENHuo2wang,etal.Atheoreticalframeworkofagentcomputing[J].JournalofComputerResearchandDevelopments,1999,36(11):1310-1314.)[3],.Agent[J].,2003(3):32-36.(WUZhan2jie,QINJian.Agenttechnologyandapplica2tionandstudyinginnetworkeducation[J].E2EducatinResearch,2003(3):32-36.)[4],.[M].:,2002.(FANYu2shun,CAOJun2wei.Theory,methodandap2plicationofMAS[M].Beijing:TsinghuaUniversityPress,2002.)[5],.went[J].,2003(3):247-249.(DUYun2pu,ZHOUSan2yuan.Akindagentbasedco2operativeintelligenttutoringsystemmodel[J].JournalofShenyangUniversityofTechnology,2003(3):247-249.)[6],.[M].:,1996.(ZHAOZhen2yu,XUYong.BasisandapplicationofmistytheoriesandNeuralNetwork[M].Beijing:ChinaMachinePress,1996.)[7],,,.Agent[J].,1999,36(10):1158-1163.(MAOXin2jun,WANGHuai2min,CHENHuo2wang,etal.CapacitytheoryofAgentcalculation[J].JournalofComputerResearchandDevelopments,1999,36(10):1158-1163.)[8],,,.[J].,2002(4):253-256.(SHENRui2min,XUYan2qing,ZhangTong2zhen,etal.Studyonmulti2agentsbasedintelligentdistance2learningenvironment[J].ComputerEngineeringandApplications,2002(4):253-256.)(::)(49)[4],,,.[J].,2006(2):5-11.(YAOXing2jia,LIUGuang2de,XINGZuo2xia,etal.Discussionsongeneraldesignoflargescalevariablespeedwindturbine[J].JournalofShenyangUniversityofTechnology,2006(2):5-11.)[5]XingZX,ZhengQL,YaoXJ,etal.Integrationoflargedoubly2fedwindpowergeneratorsystemintogrid[C]//ICEMS2005.Nanjing,China,2005:1000-1005.[6].[M].:,2006:97-152.(HEDe2xin.Windengineeringandindustrialaerody2namics[M].Beijing:NationalDefenceIndustryPress,2006:97-152.)[7]LinCW,WangFX,YaoXJ.StudyonpowercontrolcharacteristicofVS