Elastohydrodynamic point contact traction may be predicted accurately for the small slide-to-roll ratio, Σ, isothermal case by first calculating the shear response of the liquid in a parallel gap with a hemispherical pressure distribution and then correcting Σ for the elastic roller compliance.
A Simple Calculation of EHL Traction at Small Slide/Roll Ratio Including Roller Elasticity
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Bair, S, & Kotzalas, M. "A Simple Calculation of EHL Traction at Small Slide/Roll Ratio Including Roller Elasticity." Proceedings of the World Tribology Congress III. World Tribology Congress III, Volume 2. Washington, D.C., USA. September 12–16, 2005. pp. 185-186. ASME. https://doi.org/10.1115/WTC2005-64338
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