耦合曲轴振动的柴油机翻边轴瓦润滑性能分析

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中图分类号：TH133.31 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202508036

Abstract：Thejoual-thrustcoupledbearigisaspcialtpeofsidingearingtatitegatesjoualandthrusptsUnderrshating conditions，itsjoualandthrustpartsbearloadssimultaneously，causingthelubricationperformancetobeafetedbythecombined influenceoftejoua-tstduastrucurecouplingectandakshaftratioTooreacuatelyeludatetetrasintlubication characteisticsofthejoua-thustcoupledbearingunderdynamicloadingconditionsandenhanceitsoperatioalreliability，thisstudy establishedadualstructurelubricationcoupligrelatiosipforthejual-thustcoupledbearingbasedontecotiuityonditiosofoil temperature，presure，andflowatthejoual-trustinterface.Atransienttheralelastohydrodynamicmixedlubricationmodelwas developed，cosideringtejoual-tustcoupledlubricationefectBasedonthis，airectioaloupligaalysismethodforaksat vibrationandthlubricationofjoual-thrustcoupledbearingsasestablisedusingtie-varyingoilfmstifnessasthelink，andthe influenceofcrankshaftvibrationonthebearinglubricationcharacterisicswasanalyzed.Teresultsshowtat，comparedtotradioal methodsthatsolecankshaftvibrationandbearinglubricatiosepaatelythelubricationpeformancecurveoftejoual-thrustcoupled bearingoveritsoperatingcclechanges inshapewhenobtainedusing this model.Additionally，themaximumoilfilmpresurepercycle decreases，whileteminimumoilfithcknesperccleicreases.Thismodelprovidesamorecomprehesivetheoreticalfoundatioand methodological toolforhigh-precision lubricationcalculationsofcrankshaft journal-thrust coupled bearings.

Keywords：trsiealysis;teallastodrodyaicbicatio;ankhaftvibation;oupledeect;oual tustoupledearing

柴油机翻边轴瓦是一种位于曲轴末端的特殊结构轴瓦，在柴油机实际运行过程中，其工作条件较为恶劣，特别是当曲轴受到轴向冲击载荷时，翻边轴瓦不仅需同时承受轴向与径向载荷，还面临高载荷、高温及高频振动等挑战。（剩余16671字）