多孔质气体静压径向轴承倾斜状态特性研究  

Inclination Performance Study of Porous Aerostatic Journal Bearing

作　　者：段柳颖 张晓峰[1] 刘玚 李跃华 王硕[1] DUAN Liuying;ZHANG Xiaofeng;LIU Yang;LI Yuehua;WANG Shuo(􀆰The State Education Ministry Key Laboratory of Advanced Ceramics and Machining Technology,Tianjin University,Tianjin 300354,China;􀆰Tianjin Key Laboratory of Microgravity and Hypogravity Environment Simulation Technology,Tianjin 300301,China)

机构地区：[1]天津大学先进陶瓷与加工技术教育部重点实验室,天津300354 [2]天津市微低重力环境模拟技术重点实验室,天津300301

出　　处：《润滑与密封》2021年第6期10-14,37,共6页Lubrication Engineering

基　　金：国家自然科学基金青年科学基金项目(51205285);天津市自然科学基金面上项目(17JCYBJC19100);天津市自然科学基金青年项目(17JCQNJCO4800)。

摘　　要：为研究倾斜状态对多孔质气体静压轴承性能的影响,基于一维流动模型应用有限元方法对多孔质气体静压轴承进行数值分析,研究渗透率、初始偏心距、倾斜角度等重要因素对多孔质径向轴承承载能力和弯矩的影响。结果显示:轴承初始偏心距对轴承承载能力影响很大;在相同初始偏心距时,倾斜状态下的径向轴承承载能力随着轴承倾角的增大而增大;在相同倾斜角度时,径向轴承承载能力分别随着轴承初始偏心距和轴承渗透率的增大而增大,并且初始偏心距越大,渗透率对承载能力的影响越大。In order to study the effect of inclination status on the performance of porous aerostatic journal bearing,the porous air journal bearing was numerically analyzed with the finite element method based on 1 D flow model.The related factors affecting the static performance of porous air bearings,such as the permeability of the porous material,the eccentricity and the inclination angle,were analyzed.The results show that the initial eccentricity has a great influence on the load capacity.The load capacity of the porous air journal bearing will increase by increasing inclination angle under the same initial eccentricity,and will also increase by increasing initial eccentricity and the permeability at the same inclination angle.The larger the initial eccentricity,the greater influence of permeability on load capacity.

关 键 词：多孔质径向轴承 倾斜状态 静态性能 

分 类 号：TH133[机械工程—机械制造及自动化]