Numerical investigation of thermal EHL in elliptical contact under impact motion

Jing Wang , Yang Peiran , Antonius Lubrecht (1) , Moto Kaneta

1 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]

In this work, the thermal elastohydrodynamic lubrication in elliptical contact under impact motion is investigated numer- ically by altering oil viscosity and elliptical ratio. The impact-rebound time is shortened with the increase of the elliptical ratio, while a smaller ambient oil viscosity extends the impact-rebound time. Generally speaking, a larger elliptical ratio reduces the maximum load-carrying capacity, increases the value of the minimum film thickness, and lowers the tem- perature rise. A smaller oil viscosity lowers the pressure and temperature rises and reduces the film thickne

Mots clés: Thermal elastohydrodynamic lubrication; impact motion; elliptical rati

Domaines: Mécanique des solides [physics.class-ph]

Jing Wang, Yang Peiran, Antonius Lubrecht, Moto Kaneta. Numerical investigation of thermal EHL in elliptical contact under impact motion. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2015, 229, pp.1125-1131. ⟨10.1177/1350650115574534⟩. ⟨hal-01186115⟩