位移激励和热变形耦合的波纹对全陶瓷轴承打滑和振动特性影响研究

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关键词：全陶瓷轴承；波纹；打滑；位移激励；热变形 中图分类号：TH113.1；TH133.31 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202403051

Influence of displacement excitation and thermal deformation coupled waviness on slipping and vibration characteristics of full ceramic bearing

WANG Zhan1，CHEN Siyang1，WANG Zinan1， ZHANG Ke1，2 ， ZHOU Peng1 （1.School of Mechanical Engineering，Shenyang Jianzhu University，Shenyang 11O168，China; 2.Schoolof Mechanical Engineering，Shenyang Universityof Technology，ShenyangllO87o，China）

Abstract：Toinvestigatetheefectofwavinessontheslippageand vibrationcharacteristicsofthefullceramicearing，displace mentexcitationand thermaldeformationarecoupled topropose thedynamic waviness model.The Hertzcontacttheoryandtimevaryingdisplacementexcitatioarecombined toobtainthecalculatiomethodoftime-varyingcontactstfesscoeficient，andthe stifesscoefcentisaldinetailectsoftivarngcontactstisoefntandtivargdisplaceteci tationarealsotakenintoaounttomodel theslippingdynamicofthefullceramicbearing.Theefectsofrotationalspeedandwavi nessonthe slippageand nonlinearvibrationcharacteristicsof thefullceramic bearingareanalyzed.Theresultsshowthatan in creaseinrotatioalspeed，waviesampliudeandwaveumberalleadtanlargedontactstifsfientetwetheball andtheracewayThecontactstifescoeficientismoresensitivetohangesinavenumber.Theicreaseinrotationalspeedcan exacerbateslippage.Boththeincrease inwavinessamplitudeandwavenumbercanhave theefectof inhibiting slippage.However， thewavinessamplitudeand wavenumbercanbetoolargeresulting inabnormalvibrationoftheinnerring.Themaximumfundamental frequency deviation between simulation and test is 2.75Hz ，the maximum error is 0.37% .This research can be used for the optimal design of the full ceramic bearing structures as wellas for health monitoring.

：eywords： fullceramic bearing;waviness;slippage;displacement excitation;thermal deformatio

面对航空航天、核工业以及制造业等领域的高温、高速以及干摩擦等特殊工况，全陶瓷轴承的应用不可或缺。（剩余21051字）