石墨多孔介质气体轴承研究综述  

A review of studies on carbon-graphite porous gas bearings

作　　者：丁水汀[1] 张向波 杜发荣[1] 姬芬竹[3] 周煜[1] DING Shuiting;ZHANG Xiangbo;DU Farong;JI Fenzhu;ZHOU Yu(Research Institute of Aero-Engine,Beihang University,Beijing 100191,China;School of Energy and Power Engineering,Beihang University,Beijing 100191,China;School of Transportation Science and Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学航空发动机研究院,北京100191 [2]北京航空航天大学能源与动力工程学院,北京100191 [3]北京航空航天大学交通科学与工程学院,北京100191

出　　处：《航空学报》2022年第10期500-517,共18页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(51775025,51175018);中国汽车产业创新发展联合基金(U1664257);国家重点研发计划(2017YFB0102102,2018YFB0104100)。

摘　　要：多孔介质气体轴承能够产生均匀的气膜压力,支撑转子系统。其具有摩擦损失小、良好的刚度和阻尼特性等优点,在旋转机械中具有良好的应用前景。在对国内外石墨多孔介质气体轴承重要发展历程及特点进行综述的基础上,阐明径向、止推、可倾瓦、局部多孔介质4种多孔介质气体轴承的结构特征和应用前景。在理论基础、静态特性、动态特性、转子系统及相关的试验方面,讨论了径向多孔介质气体轴承关键技术的研究现状及进展。剖析了多孔介质气体轴承材料和制备工艺的发展趋势,指出了多孔介质气体轴承的未来发展方向,包括理论模型中耦合速度滑移边界条件,结构上采用双层多孔介质以及先进的检测和试验技术。为多孔介质气体轴承的产业化发展提供了技术支持。The porous gas bearings can generate uniform gas pressure, support the rotor system, and have the advantages of low friction loss, great stiffness and damping characteristics, so it possesses proactive applications in rotating machinery. The key development history and characteristics of carbon-graphite porous gas bearings at home and abroad are reviewed. The structure and application characteristics of four types of porous gas bearings, radial, thrust, tilting pad, and partial porous media, are introduced. In terms of theoretical basis, static characteristics, dynamic characteristics, rotor system, and related tests, the research status and progress of key technologies of the radial porous gas bearing are discussed. The development trend of porous gas bearing materials and preparation technology is analyzed, and the future direction of porous gas bearing is pointed out, including the theoretical model coupled with velocity slip boundary conditions, the employ of double-layer porous media in the structure, and advanced detection and test technology. This paper provides technical support for the industrialization development of porous gas bearing.

关 键 词：多孔介质气体轴承 理论与试验方法 静态特性 动态特性 石墨 

分 类 号：V233.4[航空宇航科学与技术—航空宇航推进理论与工程]