可倾瓦滑动轴承的静态性能分析  

Analysis on Static Performance of Tilting Pad Sliding Bearing

作　　者：李伟光[1] 彭喆[1] 周平[1] 

机构地区：[1]华南理工大学机械与汽车工程学院广东广州510640

出　　处：《润滑与密封》2013年第8期6-12,共7页Lubrication Engineering

摘　　要：研究可倾瓦滑动轴承的静态性能。采用有限差分法求解可倾瓦滑动轴承的雷诺方程,编写三瓦可倾瓦滑动轴承油膜压力分布的计算程序,使用Matlab软件对雷诺方程进行迭代运算,得到轴承的油膜承载力和油膜厚度的分布。结果表明:三瓦可倾瓦滑动轴承轴瓦上同一周向角度的油膜厚度在轴向上是相等的,最小油膜厚度与最大油膜压力均出现在下轴瓦上;在其他条件不变的情况下,偏心率越大时,油膜承载力越大,阻尼系数、温升和功耗越低,而温升和功耗随轴颈转速的增加而呈近似线性规律增加,因此在设计与选用轴承时,为满足轴承承载力的需求,应尽量选择低的轴颈转速和高的偏心率。Abstract：The static performances of tilting pad bearings were studied. The Reynolds equation of tilting pad sliding bearings was solved by finite difference method,the calculation program of the oil film pressure distribution of three tilting pad sliding beating was written, and the oil film bearing capacity and film thickness distribution were obtained through the iterative calculation of Reynolds equation using Matlab software. The results show that the film thickness in the same axial angle of three tilting pads bearing peared bush is equal, and the minimum film thickness and maximum film pressure are both ap- in the lower bush. When other conditions are the same,the higher the eccentric rate is,the greater the bearing ca- pacity of the oil film is, and the lower the damping ratio, temperature and power consumption are. While the temperature rising and power consumption are increased in linearity along with the axis journal speed. Therefore in the design and se- lection of bearings, the low-speed and high eccentricity should be chosen in order to meet bearing capacity needs.

关 键 词：可倾瓦滑动轴承 雷诺方程 静态性能 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]