文章编号:1000-8055(2023)06-1457-10doi:10.13224/j.cnki.jasp.20210649考虑滑移边界的多叶波箔式轴承特性分析徐科繁1,张广辉1,黄钟文2,韩佳真1,黄延忠1(1.哈尔滨工业大学能源科学与工程学院,哈尔滨150001;2.中国航空工业集团有限公司金城南京机电液压工程研究中心,南京211106)摘要:为探究滑移边界和轴承参数对轴承特性的影响,将考虑滑移边界的雷诺方程应用至具有波箔支撑的多叶式箔片轴承中。依次借助Newton-Raphson法和小扰动法线性化压力控制方程,并利用弯曲梁模型描述箔片径向变形,结合有限差分法建立该类型轴承的流-固耦合求解模型,数值结果与试验结果吻合较好。研究了轴承数、偏心率、长径比、间隙比、平箔片数目以及平箔片厚度对该类型轴承特性参数的影响规律,研究结果表明:对于八叶轴承,当轴承数或间隙比较小时,滑移边界会导致承载力普遍下降3%,此时应考虑其影响,但该影响对长径比和平箔片厚度的变化不敏感。此外,该类型轴承稳定性整体较好,当轴承数较小时滑移边界会导致轴承稳定性下降。关键词:滑移边界;多叶箔片轴承;波箔支撑;静特性;稳定性中图分类号:V245.3文献标志码:ACharacteristicsanalysisofmulti-leaffoilbearingwithbump-foilsupportconsideringslipboundaryXUKefan1,ZHANGGuanghui1,HUANGZhongwen2,HANJiazhen1,HUANGYanzhong1(1.SchoolofEnergyScienceandEngineering,HarbinInstituteofTechnology,Harbin150001,China;2.JinchengNanjingEngineeringInstituteofAircraftSystem,AviationIndustryCorporationofChina,Nanjing211106,China)Abstract:Toinvestigatetheeffectofslipboundaryandbearingparametersonbearingcharacteristics,theReynoldsequationconsideringslipboundarywasintroducedtothemulti-leaffoilbearingwithbump-foilsupport.TheNewton-Raphsoniterativemethodandtheperturbationmethodweresuccessivelyemployedtolinearizethepressuregoverningequation,andthecurvedbeammodelwasusedtodescribetheradialfoildeformation.Thefinitedifferencemethodwasadoptedtohelpestablishthefluid-structurecouplingsolutionmodelofthistypeofbearing,andthenumericalresultsagreedwellwiththeexperimentalresults.Theinfluencesofbearingnumber,eccentricityratio,length-diameterratio,clearanceratio,thenumberandthicknessoftopfoiloncharacteristicparameters...