Analysis of elastohydrodynamic lubrication of ball screw under the influence of load

Authors

  • Mengjie Wu

DOI:

https://doi.org/10.61173/8g218p37

Keywords:

elastohydrodynamic lubrication, elliptical contact, oil film thickness, oil film pressure

Abstract

The lubricating oil film is crucial for the efficient operation of ball screws, as it significantly influences the adhesion and fatigue failure of the contact surfaces. This paper presents a comprehensive study on isothermal elliptical contact elastohydrodynamic lubrication (EHL) by developing a detailed model that examines the behavior of the oil film under various initial load conditions. Through rigorous analysis, we investigate the oil film pressure distribution and thickness variations, which are essential for understanding the lubrication performance in ball screw applications. Our findings reveal the nuanced relationship between load conditions and lubrication characteristics, providing valuable insights that can enhance the reliability and longevity of ball screw systems in engineering applications. This study aims to the broader realm of tribology through addressing critical lubrication challenges.

References

[1] Gohar R, Cameron A 1963 Optional measurement of oil film thickness under elastohydrodynamic lubrication Nature 200 29- 32.

[2] Cameron A 1966 Theoretical and experimental studies of the oil film in lubricated point contact Proc Roy Soc 291 105-111.

[3] C h e n g H 1 9 7 0 A n u m e r i c a l s o l u t i o n o f t h e elastohydrodynamic film thickness in an elliptical contact Journal of Lubrication Technology 92 15-22.

[4] Hamrock B, Dowson D 1976 Isothermal Elastohydrodynamic Dean&Francis Mengjie Wu Lubrication of Point Contacts: Part II-Ellipticity Parameter Results Journal of Lubrication Technology 98 375-381.

[5] Venner C 1991 Multilevel Solution of the EHL Line and Point Contact Problems: Proefschrift. 48-55

[6] Jiang M, Liu X, Yang P 2005 Analysis of Isothermal Non- Newtonian Elastohydrodynamic Lubrication of Elliptical Contacts with Two Arbitrary Surface Velocities Tribology 25 248-253.

[7] Mu S, Feng X 2012 Analysis of Elastohydrodynamic Lubrication of Ball Screw with Rotating Nut Frontiers of Manufacturing and Design Science II, PTS 1-6 121-126 3132-

[8] Awati VB, Naik S 2020 An Isothermal Elastohydrodynamic lubrication of elliptical contact with Multigrid method Australian Journal of Mechanical Engineering 18 375-384.

[9] Sun T, Wang M, Gao X, Zhao Y 2023 Study on the Friction Mechanism of the Ball Screws Based on the Isothermal Elastohydrodynamic Lubrication Theory Journal of Beijing University of Technology DOI: 10.11936/bjutxb2021080018.

[10] Amine G, Fillot N, Philippon D et al 2023 Dual experimental-numerical study of oil film thickness and friction in a wide elliptical TEHL contact: From pure rolling to opposite sliding Tribology International 184 DOI 10.1016/ j.triboint.2023.108466

Downloads

Published

2024-12-31