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Analysis of textured journal bearing with slip boundary condition and pseudoplastic lubricants
International Journal of Mechanical Sciences ( IF 7.3 ) Pub Date : 2022-06-15 , DOI: 10.1016/j.ijmecsci.2022.107458
Mohammad Arif , Saurabh Kango , Dinesh Kumar Shukla

The present study investigates the combined influence of slip boundary condition and non-Newtonian lubricants on the tribological performance of hydrodynamic textured journal bearing. To accurately predict the effect of air/vapor bubble formation in diverging zone of the slip-texture bearing, the modified Reynolds equation with considering the Elrod cavitation model has been solved. In addition, the energy equation under adiabatic condition has been also solved for including the loss of viscosity with the temperature rise of lubricant. It has been observed that slip-texture bearings with change in rheology of lubricant from Newtonian to Pseudoplastic shows significant improvement in the maximum pressure, the average rise in temperature, and lubricant-bearing friction-force. Further findings of the study indicate that the combined effect of slip boundary condition and micro-texture with suitable selection of lubricant rheology is beneficial in increasing the stability of hydrodynamic lubricant film in the journal bearings.



中文翻译:

带滑移边界条件和假塑性润滑剂的织构轴颈轴承分析

本研究调查了滑动边界条件和非牛顿润滑剂对流体动力织构轴颈轴承摩擦学性能的综合影响。为了准确预测滑动纹理轴承发散区气泡/蒸汽泡形成的影响,求解了考虑 Elrod 空化模型的修正雷诺方程。此外,还求解了绝热条件下的能量方程,包括润滑油温度升高时粘度的损失。已经观察到,滑动纹理轴承随着润滑剂流变学从牛顿到假塑性的变化,在最大压力、平均温度上升和润滑剂轴承摩擦力方面表现出显着改善。

更新日期:2022-06-15
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