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1、附件2:外文原文Reductionofnoise〉ofloadedandunloadedmisaligned^geardrives^FaydorL.Litvirm,DanieleVecchiatoa,KenjiYukishimaa,AlfonsoFuentesb,HI,迢IgnacioGonzalez-PerezbandKenichiHayasakacaGearResearchCenter,DepartmentofMechanicalandIndustrialEngineering,UniversityofIllinoisatChic
2、ago,842W.TaylorSt・，Chicago,IL60607-7022,USAbDcpartmcntofMechanicalEnginccring,PolytechnicUniversityofCartagcna,C/DoctorFlcming,s/n,30202,Cartagena,Murcia,SpaineGearR&DGroup,ResearchandDevelopmentCenler,YamahaMotorCo.,Ltd.,2500Shingai,Iwata,Shizuoka438-8501,JapanReceived
3、22February2005;revised6May2005;accepted17May2005.Availableonline25January2006.AbstractTransmissionerrorsareconsideredasthemainsourceofvibrationandnoiseof^gcardrives.►Theimpactoftwomainfunctionsoftransmissionerrorsonnoiseisinvestigatcd:(i)linearone,causedbyerrorsofalignm
4、ent，and(ii)4少predesignedparabolicfunctionoftransmissionerrors,appliedforreductionofnoise.Itisshownthatlinearfunctionoftransmissionerrorsisaccompaniedwithedgecontact,andtheninsidethecycleofmeshing,themeshingbecomesmixedone:(i)assurface-to-surfacetangency，and(ii)surface-t
5、o-curvemeshingwhenedgecontactstarts.Applicationof3predesignedparabolicfunctionoftransmissionerrorsenablestoabsorbthelinearfunctionsoftransmissionerrorscausedbyerrorsofalignment，reducenoise,andavoidedgecontact.Theinflueneeofthe1oadonthefunctionoftransmissionerrorsisinves
6、tigated.Elasticdeformationsofteethenabletoreducethemaximaltransmissionerrorsinloaded^geardrives.►Computerizedsimulationofmeshingandcontactisdevelopedforloadedandunloaded^geardrives.►Numericalexamplesforillustrationofthedevelopedthcoryarcprovided.Keywords:◄Geardrives〉；Tr
7、ansmissionerrors;Toothcontactanalysis(TCA);Finiteelementanalysis;ReductionofnoiseArticleOutline1..Introduction2..Modificationoftoothsurfaces(2)Helicalgeardrives(1)Spiralbevelgears4.3.Wormgeardriveswithcylindricalworm5.Typesofmeshingandbasicfunctionsoftransmissionerrors6
8、.Transmissionerrorsofaloadedgeardrive4.1.Preliminaryconsiderations2.Applicationoffiniteelementanalysisfordeter
