齿轮强度计算中的K_和重合度系数的探讨(3)

Keywords:??Motorcycle??Gear-shaftdriving??Transmissingefficiency??Energy-savingandenvironmental-protectingStudyonUniformandReciprocatingOscillationDeviceofIncomplete-rollerChain??????????????????????????

??????????????MaoMao,WangChenjun,MaLvzhong,ShenYuanxi,XuYanyun,LiuJiazhen,WangYing(53)

Abstract??Intheoperationofclear-out,maintenanceandpro??cessinginexterioroftheoilandchemicalindustrialflowpipes,themanipulatorsshouldbetheimplementtoswingatevenspeedandmoveinthestraightlinewhenactuatingsourceisrotatinginapositivedirection.Toachieveobject,thedifficultpointliesinthedesignofuniformandreciprocatingoscillationdevice.Itisstudiedthatuniformoscillationofthemanipulatorisachievedbyanincomplete-rollerchaindevie,Whenrotationdirectionofdrivingsoureeisnotchanged.Thekineticprincipleofthedeviceisstated.Byanexample,designmethodofthedeviceisana??lyzed.Thedevicehasbeenappliedinanautomaticcleaningandsprayingrobot,theresultsshowthatthereisfeatureofcompactstructureandhighreliabilityforunifromandrecipocatingoscilla??tiondeviceofincomplete-rollerchain.

Keywords:??Incomplete-rollerchain??Chaindrive??Recip??rocatingoscillation

StudyonTransverseVibrationofAutomotiveEngineTimingChainwithDampers??????????????????????????????ChenJingchang,LiBaolin,ZhangJianquan,WuXiaorong(60)Abstract??Amodeloftransversevibrationofautomotiveenginetimingchainwithdamperthatwasmodeledasasingledegreeoffreedomsystemwhichconsistsofamassandaspringwasdevel??opedfromMulti-DOFsystemtheorybasedonfinitecentralizedmassdistributedmodeling,andthedifferentialequationofsystemvibrationwasestablished.Thenaturalfrequenciesandthenatu??ralmodeswerecomputed,andtheeffectofthedamperwherewasinstalledonthesystemmodeshapesandthemassandstiff??nessofdamperonthenaturalfrequencyofchaindrivesystemwereinvestigated.Somemeasurestodesignthedamperintheautomotiveenginetimingchainarepresented.

Keywords:??Automotivetimingchain??Damper??Transversevibration??Multi-DOFmodel

TorsionalVibrationAnalysisonEngine&TransmissionSys??temofWheeled4??4Vehicle????????????????????????

??????????LiChunming,WeiLaisheng,JiangLei(63)Abstract??Theeffectofresonanceofengine&transmissionsys??temandthecharacteristicsofengine??sexcitationarestudied.M(pro??

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