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首页> 外文会议>ASME/STLE international joint tribology conference >Influence of Couple Stress Lubricant on the Performance of Orifice Compensated Non-Recessed Hole-Entry Hydrostatic/Hybrid Journal Bearing
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Influence of Couple Stress Lubricant on the Performance of Orifice Compensated Non-Recessed Hole-Entry Hydrostatic/Hybrid Journal Bearing

机译：夫妇应激润滑剂对孔口补偿非凹陷孔入口静压/混合轴颈轴承性能的影响

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摘要

The lubricants are generally additized in order to enhance their lubricating properties. As a consequence of this, they exhibit nonlinear relationship between the shear stress and shear strain. One class of lubricants which has received considerable attention in recent years is the couple stress lubricants. The study of couple stress fluid flows has been the subject of increased interest owing to its widespread industrial and scientific applications such as synthetic fluids, polymer-thickened oils, liquid crystals and animal bloods. The present work is therefore aimed to study analytically the influence of couple stress lubricant on the performance of an orifice compensated non-recessed hole-entry hydrostatic/hybrid journal bearings. The modified Reynolds equation based on Stoke's couple stress fluid theory has been solved by using the Finite Element Method. The numerically simulated results have been presented for various valves of couple stress parameters and external loads. The numerically simulated results reveal that the influence of couple stress lubricant increases the value of minimum fluid film thickness at constant value of external load for hybrid journal bearing visa-vis Newtonian lubricant. Further, it has been observed that the value of direct fluid film damping coefficient (C_(22)) is larger for hydrostatic journal bearing lubricated with couple stress lubricant.
机译：通常含有润滑剂以增强其润滑性能。因此，它们表现出剪切应力和剪切应变之间的非线性关系。近年来接受了相当长的关注的一类润滑剂是夫妻应激润滑剂。由于其广泛的工业和科学应用，例如合成液，聚合物加厚的油，液晶和动物血液，对情侣应激流体流动的研究是增加兴趣的主题。因此，目前的工作旨在分析对夫妇应力润滑剂对孔口补偿的非凹陷孔进入静压/混合轴颈轴承性能的影响。通过使用有限元方法解决了基于叉池耦合应力流体理论的改进的雷诺等式。已经呈现了数值模拟的结果，用于耦合应力参数和外部负载的各种阀门。数值模拟结果表明，对耦合应力润滑剂的影响增加了混合轴承Visa-Vis牛油润滑剂的外部负荷恒定值的最小流体膜厚度的值。此外，已经观察到，对于伴有耦合应激润滑剂的液压轴颈轴承，直接流体膜阻尼系数（C_（22））的值较大。

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