预览加载中，请您耐心等待几秒...

风力发电机主轴轴承失效分析.docx

预览
1/4
2/4
3/4
4/4

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

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

风力发电机主轴轴承失效分析 Abstract Windpowergenerationhasbecomeoneofthemostfeasibleformsofrenewableenergyduetotheincreasingenvironmentalawarenessandescalatingenergydemand.Windturbineshavesignificantlyadvancedoverthepastfewyears,anditscapacityhasreacheduptoseveralmegawatts.However,windturbines'sustainabilityandefficiencyhavebeenamatterofconcernduetotheircomplex,continuouslyrotatingmechanisms,andharshconditions.Amongallthecomponentsinwindturbines,themainspindlebearingssupporttheblades'rotor,rotatingshaft,andgenerator,significantlyimpactingwindturbine’sefficientoperation.Thispaperaimstoanalyzethefailureofwindturbinemainspindlebearings,itsimpactonthewindturbine’soperationandprovidetherecommendedmeasuresforavoidingsuchfailures. Introduction Windturbinemainspindlebearingisanessentialcomponentofawindturbine,whichtransferstheblade'sturningpowertothegenerator.Ingeneral,windturbinemainspindlebearingsaredesignedtowithstandextremeconditionsinoperatingconditionsthatcouldleadtowearandfailure.Highdurability,reliability,andcorrosionresistancearethesignificantfactorsthatareessentialtoprovidelongerbearinglife.However,thebearing'sfailureisaconsiderableprobleminwindturbineoperation,causingunnecessarydowntimeandmaintenancecosts.Therefore,in-depthanalysisisessentialtodeterminethewindturbinemainspindlebearingfailure,itsimpactonwindturbineoperation,andwaystoavoidsuchfailures. WindTurbineMainSpindleBearingsFailureMechanism Failureofwindturbinemainspindlebearingsisgenerallyattributedtomanyreasons,includingimproperdesign,inadequatelubrication,dirtcontamination,damagedseals,andinternalorexternalimpacts.Theprimarymodeofbearingfailureinwindturbinesisthespallingofthebearing'sinnerrace,outerrace,androllingelements.Spallingisthemechanicalfatiguefailureofbearingmaterialthatappearsasaresultofthecumulativeandrepetitivecycliccontactloading.Theresultingspallingcancausefurtherdamagetoothercomponentsoftheturbine,suchasgearboxesandgenerators.Thespecificcausesofthefailureofwindturbinemainspindlebearingsaredescribedbelo