齿轮强度计算中的K_和重合度系数的探讨(2)

图2??沿啮合线各点处的综合曲率1/????和接触应力??H

社,1992:116-118.

收稿日期:20081113????收修改稿日期:20081220作者简介:赵洪志(1954-),男,吉林长春市人,教授

文献[1]第4版(1982)之前,直齿轮强度式中没有K??、Z??、Y??。从第5版(1989)直至第8版(2006),加入

(上接第8页)

推进器试验装置的几何模型、动力学模型和控制模型,并利用两者之间的接口对建立的虚拟样机进行了联合仿真。通过仿真结果简要论述了推进器转臂转速及叶片与固壁间的初始间隙对推进器动力学性能的影响,同时证明了这种新型仿生船舶推进器能够提供稳定、有效的推进力,为该类推进器在船舶上的应用提供了理论依据,并为下一步更加全面的分析论证该新型仿生船舶推进器的各项性能奠定了基础。

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收稿日期:20081123????收修改稿日期:20081228

基金项目:863高技术研究发展计划资助项目(2006AA11Z226)作者简介:张震(1984-),男,山东章丘市人,汉族,硕士研究生

22009年????????????????????????????????????????????英文摘要????????????????????????????????????????????????

??Accuracy

InvestigationoftheBendingVibrationFeaturesofoneWindTunnelPowerShaftSystembasedontheFlexuralVibrationCouplingwiththeTorsion

????????????????????????

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Keywords:??Windtunnel??Powershaftsystem??Modeling??Excitation??Flexuraloscillationcharacteristics

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Keywords:??Non-circulargear??Dynamics??EllipticgearStudyonMethodofSynthesizingErrorExcitationaboutGearSystemDynamics????????????????????????????

??HanJingbo,LiuGeng,WuLiyan,LiuGuanglei(24)Abstract??Manyfactorsneedtobeconsideredintheanalysisofgearsystemdynamics.Meshstiffnessanderrorexcitationmakethemostinfectioninthesystem.Asaperiodicallyvariationalex??citationthatexistinthemeshgears,errorexcitationisoneoftheprimaryfactorthatcausesthevibrationofgearsystem,errorex??citationisanalysedandcalculated.Thesyntheticalprincipleandevaluateprocessofshort-perioderrorsofagearpairinthegearsystemisgiven,consideredabouttotalcontactratioandtheran??domicityofgearerrors.Intheend,acalculationexampleisgiv??en,theresultshowsthatthemethodisthevalidity.

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????????YangPei,LiuZhongming,WangChanglu(27)Abstract??Thestrengthoflargemodulegear-rackisveryim??portantforthereliabilityoftheoceanplatform.TherulesofhowthemaingeometricparametershaveinfluenceonthestrengthofthepinionareanalyzedaccordingtothecalculationmethodsintheGB/T3480standard.Atlast,theapproachestoenhancethestrengthoflargemodulegear-rackarebroughtforward.Keywords:??Largemodule??Gear-Rack??Strength??FEMInnovatedDesignofTerminalCaptureDeviceinModuleRe??dockingMechanism????????????????????TangShuren,????ChenBaodong,BaiHemin,XiaoJie,ZhaoJincai(32)Abstract??Moduleredockingmechanismcanbeusedtobuildlarge-scalespacestation,andhasadvantagesofsmallvolume,lightweightandlowcost.Inordertomeetthepotentialdemandofourcountry??sfuturedevelopmentofspacestation,usingthemethodoffunctionanalysis,innovateddesignoftheterminalcapturedeviceofmoduleredockingmechanismiscarriedout,andbasedonconceptdesign,engineeringresearchanddevelop??mentisalsocarriedonforthetechnologypreparativeofourcountry??sfuturespacestation.

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ratio.Theanalysisprocessitsusefulnessingearstrengthcalcu??lation.

Keywords:??Geartransmission??Strengthcalculation??Trans??verseloadfatora??Coefficientofcontactratio

VirtualModelingandSimulationoftheGloboidalIndexingCamMechanismbasedonCATIAandADAMS????????

??????????????????XuFeng,XuNianfu,HeWei(42)Abstract??The3DmodelofgloboidalindexingcammechanismisestablishedbyusingCATIA3Dsoftware.ThevirtualmodelneededbyADAMSisdirectlyachievedbyconvertingthe3DmodelassemblythroughtheinterfaceofSimDesigner.InADAMS,anglevelocityandaccelerationoftheindexingplateandcontactforcesbetweentherollerandcamaresimulated.Itisconvenienttohavealookatthesimulationresult.

Keywords:??Globoidalindexingcammechanism??Virtualmodel??CATIA??SimDesigner??ADAMS

Three-dimensionalModelAnalysisofDoubleCircularArcSpiralBevelGear????????????????????????????????

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Keywords:??Doublecirculararctoothprofile??Spiralbevelgear??Conformalconicalspiral??Parametric

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Abstract??Atypegear-shaftdrivingsystem,whichisanewmotorcycleenergy-savingdrivingsystem,wasdesigned,inor??dertosolvetheexistingproblemsofthemotorcyclewithchaindrivingsystem.Thissystemusessealedgearsandconstantve??locityuniversaljointsinsteadofchaintodrivemotorcycle,anditspoweroutputsiscompletedbyconstantvelocityuniversaljointsdeliveringtothepropellershaft.Abevelgearpair,in??cludingasmallbevelgearconnectedwiththeback-endofthepropellershaftandalargebevelgearconnectedwiththedrivenwheel,transmitsthetorquefromtheenginetotherearwheeldrivingthemotorcycle.Theentiresystemisinasealedsystemwithoutoilworriesorregularmaintenance.Thetransmissioneffi??ciencyofmotorcycleissignificantlyimproved,operationlifeofenvironment-protectingisachieved.