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

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.