Modeling lubricant flow between thrust-bearing pads
Modeling lubricant flow between thrust-bearing pads
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DOI：
10.1016/j.triboint.2007.11.007
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发表时间：
2008-09
影响因子：
6.2
通讯作者：
M. Wasilczuk;G. Rotta
中科院分区：
文献类型：
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作者：
M. Wasilczuk;G. Rotta
入口温度是分析流体膜轴承性能的所有模型的主要输入之一。同时，入口温度分布和入口油速分布是轴瓦间隙内流动现象的结果。这些现象是复杂的，在许多情况下，还受到任何强制向垫块间隙供油的特殊安排的进一步影响。这样安排的原因是更有效地引入外部冷却润滑剂。对于垫片之间的间隙中的任何流动现象，没有多少细节是已知的，如果轴承装有任何一种定向润滑系统，就更少了。现代计算流体力学（CFD）工具使人们能够研究轴瓦之间的流动，甚至建立整个流体动力轴承的模型。本文将给出直接供油系统轴承间隙中润滑油流动建模的初步结果。还介绍了进油温度的变化对轴承性能的影响。
Inlet temperature is one of the main inputs in all models for the analysis of fluid film bearing performance. At the same time, inlet temperature distribution and also oil velocity distribution at the inlet are the result of flow phenomena in the gap between the bearing pads. These phenomena are complex and in many cases further affected by any special arrangements of forced oil supply to the gap between pads. The reason for such arrangements is the more efficient introduction of externally cooled lubricant. Not many details are known about any flow phenomena in the gap between the pads and even less if the bearing is fitted with any kind of directed lubrication system. Contemporary tools of computational fluid dynamics (CFD) enable one to study the flow between bearing pads and even to build models of a whole hydrodynamic bearing. Preliminary results of modeling lubricant flow in the gap, in a bearing with a direct oil supply system will be presented in this paper. The effects of modified inlet oil temperature on some aspects of bearing performance are also presented.