吉林大学机械学院本科毕业设计外文翻译格式

本科生毕业设计（论文）翻译资料中文题目：配合新一代液力变矩器的柴油动力线的一些特性英文题目：somepropertiesofadieseldrivelinewithhydrodynamictorqueconvertersofthelastestgeneration学生姓名：学号：班级：专业：机械工程及自动化指导教师：吉林大学机械科学与工程学院2SomepropertiesofadieseldrivelinewithhydrodynamictorqueconvertersofthelatestgenerationAbstractDynamicpropertiesofadrivelinewithacontrolledDieselengine,hydrodynamictransmissionmechanism,additionalgearingandaloading-workingmachineproducingcommonmonoharmonicloadingareinvestigated.Solutionofthedynamicproblemisbasedonphenomenologicalexperimentaldata:drivingtorque-speedcharacteristicinthepartoftheprimemoverandso-calledexternalstaticcharacteristicinthehydrotransmissionpart.Thenon-lineartaskissolvedbyamodifiedharmonicbalancemethodthatwasdescribedinprecedingpublicationsbytheauthor.Keywords:Machinedriveline;ControlledDieseldrive;Hydrodynamictorqueconverter;Workingmachine;Periodicloading;StationarydynamicstateNomenclatureandabbreviationsa,b---------Coulombandviscousnon-dimensionalfrictionlossesAi,Bi-------coefficientsinmathematicalexpressionoftorque-speedcharacteristici,im----------kinematictransmission,supplementarygearingtransmissionratioI,Iz-------meanreducedmomentofinertiaindrivingandloadingpartkλ,kK---------tangentslopesofλ(i)andK(i)curvesrespectivelyK-------------momenttransmissionM------------Diesel-enginemomentMD(ω,z)----controlledtorque-speeddrivingcharacteristicMDmax(ω),MDmin(ω)---torque-speedcharacteristicformaximalandminimalfuelsupplyM1,(),M2,()---pumploadingmomentandturbinedrivingmomentMT1,MT2----frictionlossmomentindrivingandloadingpartMz,Mza----meanvalueandamplitudeofloadingmoment-------------hydrodynamicconvertercharacteristicradius吉林大学本科毕业论文外文翻译3t-------------timeT,TD------------WattregulatorandDiesel-enginetimeconstantu,z---------gasleverandregulatordisplacementw-----------commondynamicvariableε-----------regulatorstructuralparameterζ-----------regulatordampingratioλ-----------coefficientofrotationmomentν-----------loadingangularvelocity,π-------indexdenotingmeanvalueandperiodicalcomponent---------hydraulicmediumdensity----------rotationangleω1,(),ω2---pumpandturbineangularvelocityDM------Diesel-engineG,GD---additionalandWatt-regulatorgearingHdPT---hydrodynamicpowertransmissionIJ--------InjectorLM------loadingmechanism(workingmachine)P,R,T---pump,reactor,turbineArticleOutlineNomenclature1.Introduction2.Mathematicalmodelofthesystem3.Stationarydynamicsolutionatmonoharmonicloading4.Resultsevaluationandconcludingremarks1.IntroductionDynamicpropertiesofadriveline(actuatingunit)consistingofacontrolledDieselengine(DM),hydrodynamicpowertransmissionsystem(HdPT),additionalgearing(G)andaloadingmechanism(LM)orworkingmachineareinvestigated.Theworkingmachineloadstheprimemoverandthetransmissionswithaprescribedmoment.AsimpleidealisedschematiclayoutofthecompletesystemisgiveninFig.1.TheconsideredDieselengineisastandardproduction:ZETOR8002.1controlledbyamechanical(Watt’s)orelectronicregulatorRDgoverningfuelinjectorIJ.Intheplaceofthehydrodynamicpowertransmissiontherearegraduallyappliedhydrodynamictorqueconvertersofthelatestgenerationthathavebeenprojected吉林大学机械科学与工程学院4andtestedinWUSAM(ResearchandProjectingInstituteofMachinesandMechanisms),j.s.c.Zvolen,Slovakia.Theseconvertersrepresentathreecomponentassemblycomposedofarotationalpump(P),turbine(T)andareactor(R)thatmayrevolveinonedirectionasafreewheel.Advantageoftheseconvertersisthefactthattheirexternaldimensionsandthedimensionsoftheirindividualcomponentsareidenticalandtheymaybemutuallychangedandarbitrarilycombinedinordertoreachdemandedproperties.Theydifferonlybyinternalconfigurationandbladegeometry.Accordingto[1]uptonowmorethan70varioustypeshavebeenexperimentallytestedandfromthemtheoneshavebeenchosenthatoptimallyfulfilledrequiredproperties.Themechanicalsystemunderconsiderationrepresentsasophisticatedenergytransferchainfromasource––primemovertoworkingmechanism.Becauseeveryrealdriveisoffinitepower,anyperiodicloadingalwaysevokesvibrationsofallthedynamicvariableseventhoughwesupposealltheconnectingshaftsandgearingsrigidandbacklashfree.Theinfluenceofdynamicloadingontheprimemovermaybejustcontrolledbyasuitablechoiceofthetorqueconverter.Fig.1.SchematiclayoutoftheDieseldriveline.Inthepaperinfluenceofconstantandperiodicloadingontimecourseofallthedynamicvariablesofthesystem(andparticularlyonthevariablesoftheprimemover)isinvestigatedatapplicationofsomeselectedtypesofhydrodynamictorqueconvertersofthelatestgeneration.Forfulfillingthistaskitisnecessarytocreateasuitablemathematicalmodelofthewholecombinedsystemandthenfinditsstationarysolutioncorrespondingtoarequiredloading.2.Mathematicalmodelofthesystem吉林大学本科毕业论文外文翻译5Atthebeginningitisnecessarytoemphasizethatmathematicalmodellingofthedrivelineinquestionisbased,inourapproach,onknowledgeofthepublishedphenomenologicaldata:stationarytorque-speedcharacteristicoftheprimemoverandso-calledexternalstaticcharacteristicoftheappliedhydrodynamictorqueconverter.ItisamuchsimplerprocessthanmodellingbasedonthermodynamicequationsofburningfuelmixtureintheDieselengineandonhydrodynamicequatio