高性能磁盘机中螺旋槽径向轴承的自由边界  

FREE BOUNDARY OF JOURNAL BEARING WITH SPIRAL GROOVE IN HDD

作　　者：卢萍[1] 倪浆铭[1] 王建民[2] 

机构地区：[1]华中理工大学计算机科学与技术学院,武汉430074 [2]美国SAE磁记录研究开发中心

出　　处：《小型微型计算机系统》2000年第8期888-890,共3页Journal of Chinese Computer Systems

基　　金：美国 SAE磁记录研究开发中心资助项目

摘　　要：在自密封的螺旋槽径向轴承中 ,轴承间隙实际上并没有全部充满润滑油 ,形成了气液界面——自由边界 .自由边界不仅会影响轴承的承载力和稳定性 ,更重要的是会影响动密封性 .本文开发了求解径向轴承自由边界的数值方法 ,给出了仿真结果并讨论轴承参数对自由边界的影响 ,为更精确地计算承载力等特性以及优化设计打下基础 .In a self sealing journal bearing with spiral groove,bearing clearance is actually not full filled with lubricant,so an interface between the lubricant and ambient is formed, which is called free boundary. A free boundary does not only have influence on load capacity and stability of a bearing, but also affects its dynamic sealing ability. In this paper,a numerical method is developed to solve the free boundary of a journal bearing and a simulation result is obtained. A discussion on how the bearing parameters affect free boundary is also presented in this paper. All above establish a base for preciser calculation of bearing performances and optimization design.

关 键 词：螺旋槽径向轴承 自由边界 有限元 高性能磁盘机 

分 类 号：TP333.35[自动化与计算机技术—计算机系统结构]