研究了3种不同布置方向对可倾瓦轴承油膜温度、承载力、功耗及动态系数等性能的影响。计算联立求解雷诺方程、能量方程及温粘方程，应用数值解法求出轴承压力和温度分布，进而求出轴承静态性能、轴承刚度和阻尼。理论计算结果表明：载荷在瓦块上时，承载能力最大，功耗最小，但需要的供油量最大；对主刚度Kxx影响较大；载荷作用在瓦块前部时，交叉刚度也不再为0。在轴承试验台上，对可倾瓦轴承不同布置方向对油膜温度的影响进行试验验证，理论和试验趋势一致，油膜最高温度差最大达到8.8 ℃。
The effects of three different arrangement directions on oil film temperature,loading capacity and power loss of tilting-pad bearings are studied in this article. The bearing pressure and temperature distribution are determined by establishing the Reynolds equation, energy equation and temperature viscosity equation and using numerical solution method, by which the static state performance of bearing, rigidity and damp of bearing are obtained. The results show that it has the maximum loading capacity and minimum power loss when the load is on the pad, but it needs the maximum capacity of oil and has a great effect on the principal stiffness Kxx. The cross stiffness is not nil any more when the load is on the front pad. This article demonstrates the effects of different arrangement directions of tilting-pad on the temperature of oil film by testing on the bearing test bed. The theory is consistent with the test trend. The maximum temperature difference of oil film is up to 8.8℃ at best.
2017,39(10): 147-150,158 收稿日期：2017-02-20
DOI：10.3404/j.issn.1672-7649.2017.10.029
分类号：TH133.3
作者简介：刘琳辉(1981-),男,高级工程师,主要从事机械设计工作
参考文献：
[1] 王永亮, 刘占生, 谭召生. 可倾瓦轴承瓦块摆动特性[J]. 哈尔滨工业大学学报, 2011, 43(9):62-66. WANG Yong-liang, LIU Zhan-sheng, TAN Zhao-sheng. Asway performance of tilting-pad bearing[J]. Journal of Harbin Institute of Technology, 2011, 43(9):62-66.
[2] 谭召生. 可倾瓦轴承的加工与装配[J]. 汽轮机技术. 2004, 46(3):232-232. TAN Zhao-sheng. Manufacture and assembled of tilting-pad bearing[J]. Turbine technology. 2004, 46(3):232-232.
[3] SIMMONS J, LAWRENCE C. Performance experiments with a 200mm, offset pivot journal pad bearing, STLE Tribology Transactions, 1996, 39, 969-973.
[4] NICHOLAS J C. Tilting pad bearing design[C]// Proceedings of the 23rd Turbomachinery Symposium, Texas A& M University,1994, 179-194.
[5] 张直明, 等. 滑动轴承的流体动力润滑理论[M]. 北京:高等教育出版社. 1986. ZHANG Zhi-ming, et al. Hydrodynamic lubrication theory of sliding bearing[M]. Beijing:Higher Education Press, 1986.
[6] 胡朝阳, 常山. 大型径向和推力滑动轴承试验台结构设计与应用[J]. 齐齐哈尔大学学报, 2005, 21(1):79-82. HU Chao-yang, CHANG Shan. Design and application of large radial and trust bearing test-bed[J]. Journal of Qiqihar University, 2005, 21(1):79-82.
