Wind Energy Science
Wind Energy Science
WES
Articles | Volume 7, issue 3
Articles | Volume 7, issue 3
https://doi.org/10.5194/wes-7-1021-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-7-1021-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 7, issue 3
Review article
 | 
17 May 2022
Review article |  | 17 May 2022

Wind turbine main-bearing lubrication – Part 1: An introductory review of elastohydrodynamic lubrication theory

Edward Hart, Elisha de Mello, and Rob Dwyer-Joyce

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Cited articles

Albahrani, S., Philippon, D., Vergne, P., and Bluet, J.: A review of in situ methodologies for studying elastohydrodynamic lubrication, Proc. Institut. Mech. Eng. Pt. J, 230, 86–110, 2016. a
Antoine, J.-F., Visa, C., Sauvey, C., and Abba, G.: Approximate Analytical Model for Hertzian Elliptical Contact Problems, J. Tribol., 128, 660–664, https://doi.org/10.1115/1.2197850, 2006. a
ASTM: D341 – 20e1 Standard Practice for Viscosity-Temperature Equations and Charts for Liquid Petroleum or Hydrocarbon Products, Standard, ASTM International, West Conshohocken, PA, https://doi.org/10.1520/D0341-20E01, 2020. a, b
Bair, S.: An experimental verification of the significance of the reciprocal asymptotic isoviscous pressure for EHD lubricants, Tribol. Transact., 36, 153–162, 1993. 
Bair, S.: The rheological assumptions of classical EHL: what went wrong?, Tribol. Int., 131, 45–50, 2019. a, b
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This work provides an accessible introduction to elastohydrodynamic lubrication theory as a precursor to analysis of lubrication in a wind turbine main bearing. Fundamental concepts, derivations and formulas are presented, followed by the more advanced topics of starvation, non-steady effects, surface roughness interactions and grease lubrication.
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