第44卷第3期2023年6月Vol.44No.3June2023内燃机工程ChineseInternalCombustionEngineEngineering船用柴油机供油机构滚轮衬套混合热弹流润滑特性研究郭怀谦1，赵滨1，陈思睿2，周家勇2，卢熙群1，ArdianMORINA1，3（1.哈尔滨工程大学动力与能源工程学院，哈尔滨150001；2.重庆红江机械有限责任公司，重庆402160；3.英国利兹大学机械工程学院，英国利兹LS29JT）StudyontheCharacteristicsofMixedThermalElastohydrodynamicLubricationoftheRollerBushingintheFuelSupplyMechanismofMarineDieselEnginesGUOHuaiqian1，ZHAOBin1，CHENSirui2，ZHOUJiayong2，LUXiqun1，ArdianMORINA1，3（1.CollegeofPowerandEnergyEngineering，HarbinEngineeringUniversity，Harbin150001，China；2.ChongqingHongjiangMachineryCo.，Ltd.，Chongqing402160，China；3.SchoolofMechanicalEngineering，UniversityofLeeds，LeedsLS29JT，UnitedKingdom）Abstract：Takingtherollerfloatingbushingrollerpinintheoilsupplymechanismofmarinedieselengineastheresearchobject，consideringtheelasticdeformationofthebushingunderlowspeedandheavyloadoperationconditions，andtakingintoaccountthesurfaceroughnesscharacteristics，ananalyticalmodelofthedoublelayeroilfilmmixthermoelastichydrodynamiclubricationofthefloatingbushingwasconstructed.Theeffectsoftheinnerandouteroilfilmclearanceratio，thebushingwidthdiameterratio，thebushingthicknessanditssurfaceroughnessonthelubricatingpropertiesincludingtheringspeedratio，themaximumoilfilmpressureoftheinnerandouterlayers，andthebearingcapacityandsoonwereinvestigated.Theresultsshowthattheoilfilmthicknessoftheinnerlayeroftherollerfloatingbushingrollerpinstructureissmallandthelubricationstateispoorduringtheoperationprocess.Underlowspeedandheavyloadconditions，theelasticdeformationandmixedlubricationeffectofbushingcannotbeignored.Thelargerthewidthdiameterratio，thesmallertheinnerandouterlayergapratio，thesmallerthemaximumoilfilmpressure，thestrongerthebearingcapacityofthestructure，butthehigherthetemperaturerise.Themixedlubricationstateonlyappearsinthelubricatingoilfilmoftheinnerlayerofthebushing.Andthegreaterthesurfaceroughnessofthebush...
