A method for measuring the hydrodynamic effect on the bearing land
A method for measuring the hydrodynamic effect on the bearing land
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一种测量承载区水动力效应的方法
DOI：
10.1016/j.triboint.2013.07.020
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发表时间：
2013-11-01
影响因子：
6.2
通讯作者：
Chen, Shujiang
中科院分区：
文献类型：
--
作者：
Liang, Peng;Lu, Changhou;Chen, Shujiang
本文提出了动压比(GAMMA)的概念来衡量承载地上的水动力效应。采用有限差分法、超松弛法和欠松弛法对雷诺方程和流动连续性方程进行了数值求解。以四腔毛细管补偿静压滑动轴承为例，研究了动压比(伽马)随偏心比(？)和转速(N)的变化规律。仿真结果表明，随着偏心比和转速的增大，动压比增大。当偏心比小于0.5时，三种转速下的动压比均小于5%。但当偏心比大于0.5时，动压比随偏心比的增大而快速上升。(C)2013爱思唯尔有限公司。保留所有权利。
The concept of dynamic pressure ratio (gamma) is put forward in this paper to measure the hydrodynamic effect on bearing land. The Reynolds equation and flow continuity equation have been solved using finite difference method, overrelaxation method and underrelaxation method. Taking the four-pocket capillary compensated hydrostatic journal bearing as an example, variations of dynamic pressure ratio(gamma) with eccentricity ratio (epsilon)and rotating speed(N) are studied. The simulation results indicate that, as eccentricity ratio and rotating speed increase, dynamic pressure ratio will increase. With eccentricity ratio lower than 0.5, dynamic pressure ratio is smaller than 5% at three rotating speeds. However, when eccentricity ratio is higher than 0.5, dynamic pressure ratio will rise fast with increasing eccentricity ratio. (C) 2013 Elsevier Ltd. All rights reserved.