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March 3, 2026Scientia Sinica Technologica0 citationsOpen Access

Elliptical Contact Spin Elastohydrodynamic Lubrication Analysis Model and Its Application Considering the Influence of Non-Gaussian Rough Surface Features

QLQiyin LinCWChen WangChina University of Petroleum, BeijingMQMinmin QiuGuangxi University of Science and Technology

Key Points

  • Lubrication performance deteriorates as the root mean square roughness of the contact surface increases, raising contact pressure.
  • The study showed that elliptical spin angular velocity and oil viscosity are critical factors influencing lubrication efficiency.
  • Modeling considers non-Gaussian surface parameters like skewness and kurtosis, helping predict lubrication behavior under varied conditions.
  • The findings suggest that optimizing surface texture can significantly improve interface lubrication performance.

Abstract

为了研究非高斯粗糙表面的纹理特征、表面均方根高度、偏度和峰度等特征参数对椭圆接触自旋弹性流体动力润滑的影响,本文提出了一种新的虑及非高斯粗糙表面特征影响的椭圆接触自旋弹性流体动力润滑分析模型,并给出了椭圆接触自旋弹性流体动力润滑问题的完全解。该模型可以快速计算油膜厚度、流体压力和微凸体接触压力,并能够分析均方根粗糙度、表面纹理参数、偏度和峰度等非高斯粗糙表面参数对椭圆接触自旋弹流润滑性能的影响。开展的算例分析结果表明,椭圆自旋角速度和润滑油粘度会显著影响润滑性能,而合理的表面纹理层可有效改善界面润滑性能。随着接触表面均方根粗糙度的增加,微凸体接触压力上升,导致界面润滑性能恶化。相反,降低接触表面偏度和峰度值能显著提升椭圆接触自旋的润滑性能。

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Cite This Study

Lin et al. (2026) studied this question.

synapsesocial.com/papers/69a76752badf0bb9e87e0774https://doi.org/10.1360/sst-2025-0456
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