ISO和AGMA动载系数的分析比较-豆柴文库

您所在位置：网站首页 / ISO和AGMA动载系数的分析比较.docx / 文档详情

在线预览结束，喜欢就下载吧，查找使用更方便

5 金币

下载文档

/ 3

下载提示

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

文本预览

ISO和AGMA动载系数的分析比较
ISOandAGMADynamicLoadFactorsComparativeAnalysis
Introduction
Inmechanicalengineering,theselectionofgeardesignandtheirrespectivecomponents,suchasbearings,shafts,andhousings,dependsontheappropriatecalculationofdynamicloadfactorswhicharemainlydeterminedbyInternationalOrganizationforStandardization(ISO)andAmericanGearManufacturersAssociation(AGMA)standards.
Dynamicloadfactorsareusedtocalculatetheloaddistributionfactorthataffectsthesurfacecontactfatiguelifeandpittingresistanceofthegear.ISOandAGMAusedifferentloadcasestodeterminetheirdynamicloadfactors,andthispaperaimstomakeanin-depthanalysisofthetwostandards'dynamicloadfactors.
ISODynamicLoadFactor
ISO6336Standardprovidesrecommendationsforgeardesign,calculationofloadcapacityofcylindricalgears,bevelgears,andwormgears,andrequiredmaterialproperties.Thestandard'smainfocusisoncylindricalgears,wherethedynamicloadfactorappliestothecontactbetweenthegearandpinionteeth.
ISOcalculatesdynamicloadfactorsusingthevariousdefinitionsofloadtypesthatincludeshockloads,fatigueloads,andfluctuatingloads.ISOstandardsrecommendtheuseofadynamicloadfactorKbtodeterminethepowerratingofgearsystems.
TheISOdynamicloadfactorKbconsidersthematerialstrength,geargeometry,andtheoperatingconditionsofthegear,suchasspeed,temperature,andlubrication.Theloadfactoraccountsforthedirectionandmagnitudeoftheloadexperiencedbythegearandprovidesanestimatedcontactstressvalue.Thevalueoftheloadfactordependsonthematerialtype,designfactor,andmanufacturingquality,amongotherfactors.
AGMADynamicLoadFactor
AGMAhaspublishedfourstandardsongeardesignsthatincludespecificationsforload,strength,quality,andpowerratings.AGMAusesdynamicloadfactorstocalculatethepowerratingofgearsystems,asisthecasewithISO.AGMAdefinesfourtypesofloadcasesasrecommendedpracticesforuseindeterminingdynamicloadfactors:ageartorque,athrustload,abendingload,andcombinedaxialandradialloads.
TheAGMAdynamicloadfactorincludesthreerecommendedloadfactors:Kf,Ks,andKv.TheKffactorconsiderstheapplication'soperati