资源预览内容
第1页 / 共42页
第2页 / 共42页
第3页 / 共42页
第4页 / 共42页
第5页 / 共42页
第6页 / 共42页
第7页 / 共42页
第8页 / 共42页
第9页 / 共42页
第10页 / 共42页
亲,该文档总共42页,到这儿已超出免费预览范围,如果喜欢就下载吧!
资源描述
(机械制造行业)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:some properties of a diesel driveline with hydrodynamic torque converters of thelastest generation学生姓名: 学号: 班级: 专业:机械工程及自动化指导教师: SomepropertiesofadieseldrivelinewithhydrodynamictorqueconvertersofthelatestgenerationAbstractDynamicpropertiesofadrivelinewithacontrolledDieselengine,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-meanreducedmomentofinertiaindrivingandloadingpartk,kK-tangentslopesof(i)andK(i)curvesrespectivelyK-momenttransmissionM-Diesel-enginemomentMD(,z)-controlledtorque-speeddrivingcharacteristicMDmax(),MDmin()-torque-speedcharacteristicformaximalandminimalfuelsupplyM1,(),M2,()-pumploadingmomentandturbinedrivingmomentMT1,MT2-frictionlossmomentindrivingandloadingpartMz,Mza-meanvalueandamplitudeofloadingmoment-hydrodynamicconvertercharacteristicradiust-timeT,TD-WattregulatorandDiesel-enginetimeconstantu,z-gasleverandregulatordisplacementw-commondynamicvariable-regulatorstructuralparameter-regulatordampingratio-coefficientofrotationmoment-loadingangularvelocity,-indexdenotingmeanvalueandperiodicalcomponent-hydraulicmediumdensity-rotationangle1,(),2-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(Watts)orelectronicregulatorRDgoverningfuelinjectorIJ.IntheplaceofthehydrodynamicpowertransmissiontherearegraduallyappliedhydrodynamictorqueconvertersofthelatestgenerationthathavebeenprojectedandtestedinWUSAM(ResearchandProjectingInstituteofMachinesandMechanisms),j.s.c.Zvolen,Slovakia.Theseconvertersrepresentathreecomponentassemblycomposedofarotationalpump(P),turbine(T)andareactor(R)thatmayrevolveinonedirectionasafreewheel.Advantageoftheseconvertersisthefactthattheirexternaldimensionsandthedimensionsoftheirindividualcomponentsareidenticalandtheymaybemutuallychangedandarbitrarilycombinedinordertoreachdemandedproperties.Theydifferonlybyinternalconfigurationandbladegeometry.Accordingto1uptonowmorethan70varioustypeshavebeenexperimentallytestedandfromthemtheoneshavebeenchosenthatoptimallyfulfilledrequiredproperties.Themechanicalsystemunderconsiderationrepresentsasophisticatedenergytransferchainfromasourceprimemovertoworkingmechanism.Becauseeveryrealdriveisoffinitepower,anyperiodicloadingalwaysevokesvibrationsofallthedynamicvariableseventhoughwesupposealltheconnectingshaftsandgearingsrigidandbacklashfree.Theinfluenceofdynamicloadingontheprimemovermaybejustcontrolledbyasuitablechoiceofthetorqueconverter.Fig.1.SchematiclayoutoftheDieseldriveline.Inthepaperinfluenceofconstantandperiodicloadingontimecourseofallthedynamicvariablesofthesystem(andparticularlyonthevariablesoftheprimemover)isinvestigatedatapplicationofsomeselectedtypesofhydrodynamictorqueconvertersofthelatestgeneration.Forfulfillingthistaskitisnecessarytocreateasuitablemathematicalmodelofthewholecombinedsystemandthenfinditsstationarysolutioncorrespondingtoarequiredloading.2.MathematicalmodelofthesystemAtthebeginningitisnecessarytoemphasizethatmathematicalmodellingofthedrivelineinquestionisbased,inourapproach,onknowledgeofthepublishedphenomenologicaldata:stationarytorque-speedcharacteristicoftheprimemoverandso-calledexternalstaticcharacteri
收藏 下载该资源
网站客服QQ:2055934822
金锄头文库版权所有
经营许可证:蜀ICP备13022795号 | 川公网安备 51140202000112号