动静压轴承油膜温度场特性分析与实验研究  

Performance Analysis and Experiment Research on Oil Film Temperature of Hybrid Bearing

作　　者：郭红[1] 刘豪杰[1] 张绍林[1] 王迎佳[1] 

机构地区：[1]郑州大学机械工程学院,河南郑州450001

出　　处：《润滑与密封》2015年第5期1-4,30,共5页Lubrication Engineering

基　　金：国家自然科学基金项目(51075373);河南省教育厅科学技术研究重点项目(13A460675)

摘　　要：以具有深浅腔的动静压轴承为研究对象,基于GAMBIT对油膜进行网格划分并建立三维有限元模型,编写纳入Reynolds边界条件和实现偏位角迭代的UDF程序。通过FLUENT仿真得到该动静压轴承不同工况下油膜的温度场分布,计算和分析表明油膜温升随主轴转速和偏心率的增加而迅速提高,且转速增大,温度峰值沿轴颈旋转方向逐渐后移。搭建实验台并测量试验轴承不同位置的温度,并与FLUENT计算结果进行对比,结果趋势一致。The oil film temperature distribution of deep/shallow pockets hybrid bearing under different journal rotational speed and eccentricity were presented through the three dimensional finite element modeling by GAMBIT and FLUENT simulation. An UDF program was developed in order to control the Reynolds pressure boundary condition and attitude angle iteration. The analysis and calculation results show that the temperature rise is increased quickly with the increasing of journal rotational speed and eccentricity, and along the increasing of journal rotational speed, the peak temperature is gradually shifted along the shaft rotation direction. The test rig was set up and the oil film temperatures of different position were measured. Experiment results and theoretical results were compared and the change trend was consistent.

关 键 词：动静压轴承 温度分布 UDF程序 温度场 

分 类 号：TH133.3[机械工程—机械制造及自动化]