弹性箔片轴承的研究进展  

Research Progress of Elastic Foil Bearings

作　　者：刘佳琦 毕春晓 韩东江[2,3] 周云龙 杨金福[2,3] LIU Jiaqi;BI Chunxiao;HAN Dongjiang;ZHOU Yunlong;YANG Jinfu(School of Energy and Power Engineering,Northeast Electric Power University,Jilin of Jilin Province 132012,China;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]东北电力大学能源与动力工程学院,吉林吉林132012 [2]中国科学院工程热物理研究所,北京100190 [3]中国科学院大学,北京100049

出　　处：《润滑与密封》2022年第9期166-178,共13页Lubrication Engineering

基　　金：国家重点研发计划项目(2018YFB1501005);中国科学院青年创新促进会项目(2021141)。

摘　　要：近年来,弹性箔片轴承在高速透平机械的应用中展现出巨大的潜力。为获取轴承高承载力、减少轴承启停过程的摩擦与磨损、提高轴承的高速稳定性,研究人员开展了大量的理论、实验与应用研究。从弹性箔片轴承的结构特性、涂层特性和建模方法3个方面对气体弹性箔片轴承的研究进展进行综述。首先从轴承结构优化的角度,介绍箔片轴承结构改进的发展历程,以及具有新颖结构设计的多叶搭接式弹性动压箔片轴承及其优点;然后从减少轴承启、停阶段摩擦力,提高弹性箔片轴承使用寿命的角度出发,比较分析了应用广泛的多种涂层,总结国内外新型润滑剂的适用条件及减摩效果;最后从轴承建模角度,介绍经典的简单弹性模型、考虑箔间摩擦力与分离等影响因素的系列复杂模型,为后续模型构建与性能分析提供依据。展望弹性箔片轴承在高精尖等领域的前景,并对弹性箔片轴承的研究方向提出了建议。In recent years,flexible foil bearings have shown great potential in the application of high-speed turbomachinery.In order to obtain the high bearing capacity,reduce the friction and wear during the start-stop process,and improve the high-speed stability of the bearings,a large number of theoretical,experimental and applied studies have carried out.The research progress of gas elastic foil bearing was reviewed from three aspects,such as the structural characteristics,coating characteristics and modeling methods.Firstly,from the perspective of bearing structure optimization,the development process of foil bearing structure improvement and the advantages of multi-leaf lap elastic dynamic pressure foil bearing with novel structural design were introduced.Then,from the perspective of reducing the friction force during the start and stop phases of the bearing and improving the service life of the elastic foil bearing,the widely used coatings were compared and analyzed,and the application conditions and friction reduction effects of new lubricants at home and abroad were summarized.Finally,from the perspective of bearing modeling,a variety of models including simple elastic models and complex models that consider factors such as friction and separation between foils were introduced,which provides a basis for subsequent model construction and performance analysis.The prospect of elastic foil bearing being in advanced and sophisticated fields was prospected,and the research direction of elastic foil bearing was suggested.

关 键 词：多叶弹性箔片轴承 轴承结构 润滑涂层 轴承模型 高速稳定性 

分 类 号：TH133.35[机械工程—机械制造及自动化]