粘度变化对短轴颈轴承微极流体挤压膜润滑的影响

IF 1.5 Q3 ENGINEERING, MECHANICAL
N. Naduvinamani, A. K. Kadadi
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引用次数: 10

摘要

本文从理论上研究了粘度变化对微极流体短轴颈轴承挤压膜性能的影响。从数学角度推导了微极流体粘度变化的修正雷诺方程。为了得到封闭形式的解,考虑了恒载荷下的短轴承近似。通过修正雷诺方程求解流体膜压力,得到承载能力和挤压膜时间等轴承特性。结果表明,微极性流体作为润滑剂改善了挤压膜特性,延长了轴承寿命,而粘度变化系数降低了承载能力,缩短了挤压膜时间。结果与相应的牛顿情况进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Viscosity Variation on the Micropolar Fluid Squeeze Film Lubrication of a Short Journal Bearing
A theoretical study of the effect of the viscosity variation on the squeeze film performance of a short journal bearing operating with micropolar fluid is presented. The modified Reynolds equation accounting for the viscosity variation in micropolar fluid is mathematically derived. To obtain a closed form solution, the short bearing approximation under constant load is considered. The modified Reynolds equation is solved for the fluid film pressure and then the bearing characteristics, such as obtaining the load carrying capacity and the squeeze film time. According to the results evaluated, the micropolar fluid as a lubricant improves the squeeze film characteristics and results in a longer bearing life, whereas the viscosity variation factor decreases the load carrying capacity and squeezes film time. The result is compared with the corresponding Newtonian case.
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来源期刊
Advances in Tribology
Advances in Tribology ENGINEERING, MECHANICAL-
CiteScore
5.00
自引率
0.00%
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1
审稿时长
13 weeks
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