资源描述：
《轴承寿命外文翻译参考文献.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、外文文献翻译(含：英文原文及中文译文)英文原文EXTENDINGBEARINGLIFEAbstractNatureworkshardtodestroybearings,buttheirchancesofsurvivalcanbeimprovedbyfollowingafewsimpleguidelines.Extremeneglectinabearingleadstooverheatingandpossiblyseizureor,atworst,anexplosion.Butevenafailedbearingleavescluesastowhatwent
2、wrong.Afteralittledetectivework,actioncanbetakentoavoidarepeatperformance.Keywords:bearingsfailureslifeTherearemanycausesofbearingfailure,butcommononesareimproperuse,contamination,improperuseoflubricants,damageduringinstallationorhandling,andmountingerrors.Itisnotdifficulttodiagno
3、sethecauseofthefailurebecausethetracesleftonthebearingscandeterminethecauseofthebearingfailure.However,whenpost-hocinvestigationsprovidevaluableinformation,itisbesttoavoidfailurescompletelybyproperlyselectingthebearingsfirst.Inordertodothis,itisimportanttoreviewthemanufacturer'sdi
4、mensionalpositioningguidelinesandtheusecharacteristicsoftheselectedbearings.1CauseofbearingfailureAbout40%ofballbearingfailuresarecausedbydust,dirt,debris,andcorrosion.Contaminationisusuallycausedbyincorrectuseandpooruseoftheenvironment.Italsocausesproblemswithtorqueandnoise.Beari
5、ngfailurescausedbytheenvironmentandcontaminationarepreventable,andsimplevisualinspectioncandeterminethecauseofsuchfailures.Throughpost-failureanalysis,youcanfindoutwhataspectsofbearingsthathavefailedorareabouttofailshouldbeviewed.Understandingthemechanismsoffailuresuchaserosionand
6、fatiguefailurecanhelpeliminatetherootcauseoftheproblem.Aslongasitisusedandinstalledproperly,erosionofthebearingiseasilyavoided.Erosionischaracterizedbythepresenceofindentationsontheracewaysofthebearingringcausedbyimpactloadsorincorrectinstallation.Erosionusuallyoccurswhentheloadex
7、ceedstheyieldlimitofthematerial.Iftheinstallationisincorrectsothataloadtraversingthebearingringcanalsoproduceerosion.Thepitsonthebearingringsalsoproducenoise,vibrationandadditionaltorque.Asimilardefectistheellipticalindentationthatoccurswhenthebearingdoesnotrotateduetotheballoscil
8、latingbetweenthebearingrings.This
