2

culations,theauthorhasderivednewformulasforcalculatingthereturnstagnantanglecausedbytheshaftingelasticdeformation,whichin2cludestheeffectsofnotonlytheshaftingelastictorsionaldeformationbutalsotheelasticbendingdeformation.Ithasbeenprovedthattheef2fectoftheshaftingelasticbendingdeformationonthereturnstagnantanglecausedbytheshaftingelasticdeformationshouldnotbenegligi2ble.

Keywords: Returnstagnantangle Shaftingelasticbendingdefor2mation Shaftingelastictorsionaldeformation

AnOptimalSynthesisforFree-formStyleMachineToolSettingParameters)Part1:EstablishingtheOptimalModel,,,,

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ZhangYanhong,etal.(28)

Abstract Inthispaper,Free-formstylemachinetoolsettingparam2etersisanalyzed,andamathematicalmodelofoptimalsynthesisises2tablished.Keepingthepredeterminedsecond-ordercontactparametersunchangedandoptimizingthird-ordercontact,thismodelcanmean2whjleoptimizetheforth-ordercontactparameters,ingprojectiononparameterline,theeffectivenessofthealgorithmsisverifiedbycomputersimulation.

Keywords: Free-formstylemachinetool Projectiononparameterline Optimization

TheStudyandRealizationofOptimizationAlgorithmofTwo-speedUniversalWinch.sTransfersystem,,,,,,,,,

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ChenGong,etal.(33)

Abstract Thispaperanalyzedthetwo-speeduniversalwinch.stransfersystem,thenestablishedoptimizationmodel,andposedaprac2ticaloptimizationalgorithm.ItcanbereferencedbyCADofsimilargearingtransfersystem.

Keywords: Two-speeduniversalwinch Transfersystem Opti2mizationmodel Optimizationalgorithm

TheCalculationforShavingoftheHypoidGears,,,,,,

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XiongShi(36)

Abstract Thispaperanalysesthedeferencebetweenthecarbideshaverandthecommoncutterforhypoidgear,andmainlyanalysesandaccuratelycalculatestheparametersofshaverincuttingthehypoidgear.

Keywords: Hypoidgear Shaving

GenerationofHFTHypoidPinionFilletSurfacesandtheTestforUndercuttingandInterferencewithGearTop

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,,,,,,,FangZongde,etal.(38)

TheForceAnalysisofMetalPushingBeltContinuouslyVariableTransmission(CVT),,,,,,,,

GuoYichao,etal.(41)

Abstract ThearticleputsforwardtheforceanalysismodelofthemetalpushingbeltCVT,andsetuptheforceanalysismodelofthemetalringandthemetalblock.ThearticleusesrelatedtoolsandgetsimportantresultsthatcanbeusedtodesignametalpushingbeltCVT.Keywords: CVT Metalpushingbelt Forceanalysis

AStudyofTensileStressDistributionActingonRingsintheDif2ferentFitnessforCVT

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LiuYuanhai,etal.(45)

Abstract SteelringisakeypartofmetalV-belt;theloaddistribu2tiononitshasagreatinfluenceonitsdrivingcapacityanditsservicelife.Inthispaper,therelationoffitnessbetweenringsandstressdistri2butionisanalyzed.Itisshownthattheproperinterferencefitbetweenringscouldmakethetensilestressevenandsmooth,andthecomputa2tionalformulasforinterferencequantityisderived.

Keywords: CVT Metal V-belt Steelrings FitnessTheInfluenceofFrictionCoefficientontheContactFatigueLifeofGear,,,,,,,,,,,,,,XiaYanqiu,etal.(48)Abstract Thefrictioncoefficientoftwoadditivesandtwoindustrygearlubricantwereinvestigatedinthefourballtester,staticanddynamicfrictioncoefficientwereinvestigatedinstationarydynamicfrictioncoeffi2cienttestmachine.Theexperimentonball-polefatiguetesterap2provedthatfatiguelifearisewithfrictioncoefficientreduce,andthefrictioncoefficientisanimportantfactortofatiguelife.

Keywords: Lubricantadditives Frictioncoefficient Surfacefa2tigueofgear

Elastic-ringPlanetaryTractionDriveforHighSpeedPowerTransmission,,,,,,,,,,,

XuanHaijun,etal.(50)

Abstract DependontheresearchbytheChemicalMachineInstituteofZhejiangUniversityonhigh-speedtransmissioninpastseveralyears,anewelastic-ringplanetarytractiondriveisdevelopedforhigh-speedpowertransmission.Withthecomputercontrolledhigh-pres2sureoilsystem,thedeformationoftheelasticringcanbeadjusted.Thedeformationandstressonelastic-ringcanbeobtainedbyFEA.Itisproveditcanbeusedinsuper-highspeedpowertransmission.Keywords: Tractiondrive Elastic-ring FiniteelementanalysisTheAnalysisandDesignforHighSpeedGearsunderHighTem2peratureandImpactConditions

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MoAigui(52)

Abstract Inthispaper,thedesignmethodofgearsworkingunderhighspeed,hightemperatureandhighstartimpactisevaluated.Sever2aldesignguidance,scuhasgeartraintype,speedratiosplit,materialselection,gearparametersdesignandloadbalance,arediscussedindetail.

Keywords: Speedreducer Highspeed Hightemperature Highstartimpact

Gears

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TheInfluenceoftheTeethNumberofDrivingGearontheFlowCharacteristicsofCompoundExternalGearPump

,,,,,,,,,,,,,,,,,HouBo,etal.(54)Abstract Thispaperintroducestheworkingprinciple,Deducesthee2quationsofinstantaneousflowandthepulsationofthegearpump.AftertheAbstract AnanalyticalrepresentationofHFT(HypoidFormateTilt)hypoidpinionfilletsurfacehasbeenadvanced.Onthisbasis,anaccu2ratemodelofpiniontoothhasprovided.Bythenumericalsimulationoncomputer.Aniterativeapproachfordeterminingthepinionmachine-toolsettingsbyusingthelocalsynthesisandpiniontoothmodelhasbeendeveloped,whichmadetherealtoothheightandrequiredmeshingqualitybesatisfiedsimultaneously.Further,anaccuratetestforunder2cuttingandinterferencewithgeartophasbeencombinedwithabovementionedapproachtomakeupaperfectprogramfordesigning,ana2lyzingandsimulatingthehypoidgeardrives. )