第45卷第16期2023年8月舰船科学技术SHIPSCIENCEANDTECHNOLOGYVol.45,No.16Aug.,2023动态载荷条件下船舶推进轴系尾轴承润滑性能分析刘思佳"，袁强12，刘�宇，刘�虹"，吕明辰1(1.浙江海洋大学船舶与海运学院，浙江舟山316022；2.武汉理工大学船海与能源动力工程学院，湖北武汉430063)摘要：本文根据实船结构参数，建立滑动尾轴承几何模型和有限元模型，利用半正弦周期函数模拟动态载荷，通过仿真软件计算得到油膜压力与油膜厚度变化规律，分析动态载荷的幅值和方向对轴承润滑性能的影响。计算结果表明，改变动态载荷的幅值，最大油膜压力随着幅值增大而增大，且变化趋势与半正弦动态载荷趋势相似，最小油膜厚度随着幅值增大而减小；改变动态载荷的传播方向，x方向的最大油膜压力峰值高于x方向，且x方向最小油膜厚度呈现先下降后上升的变化趋势，而x方向呈现先上升后下降的变化趋势。关键词：滑动轴承；有限元仿真；动态载荷；润滑性能中图分类号：TH117；TH133文章编号：1672-7649(2023)16-0043-05Analysisoflubricationperformanceofmarinepropulsionshaftbearingunderdynamicload(1.SchoolofNavalArchitectureandMarinetime,ZhejiangOceanUniversity,Zhoushan316022,China;2.CollegeofMarineandEn-Abstract:Inthispaper,thegeometricmodelandfiniteelementmodeloftheslidingsternbearingareestablishedac-cordingtothestructuralparametersoftherealship.Thesemi-sinusoidalperiodicfunctionisusedtosimulatethedynamicload.Thevariationlawofoilfilmpressureandoilfilmthicknessiscalculatedbysimulationsoftware.Theinfluenceoftheamplitudeanddirectionofthedynamicloadonthelubricationperformanceofthebearingisanalyzed.Thecalculationres-ultsshowthat:Bychangingtheamplitudeofdynamicload,themaximumoilfilmpressureincreaseswiththeincreaseofamplitude,andthechangetrendissimilartothatofsemi-sinusoidaldynamicload.Theminimumoilfilmthicknessde-creaseswiththeincreaseofamplitude.Bychangingthepropagationdirectionofdynamicload,themaximumoilfilmpres-surepeakinxtdirectionishigherthanthatinxdirection;theminimumoilfilmthicknessinthex*directionshowedatrendoffirstdecreasingandthenincreasing,whilethexdirectionshowedatrendoffirstincreasingandthendecreasing.Keywords:slidingbearing;finiteelementsimulation;dyn...
