Crucial role of solid body temperature on elastohydrodynamic film thickness and traction

verfasst von

H. C. Liu, B. B. Zhang, Norbert Bader, F. Guo, Gerhard Poll, P. Yang

Abstract

The effect of the solid body temperature effect on film thickness and traction in elastohydrodynamic lubrication (EHL) has been studied numerically. At a moderate entrainment velocity, the EHL film behavior is controlled by the solid body temperature as the oil heats up to the body temperature before entering the contact zone and thus the film thickness decreases. For high velocity conditions, inlet shear and compressive heating also contribute to the reduction of film thickness. The results indicate that the measured film thickness and traction on disc machines might be lower than the expected values when the disc temperature exceeds the supplied oil temperature.

Organisationseinheit(en)

Institut für Maschinenkonstruktion und Tribologie

Externe Organisation(en)

University of Twente
Qingdao University

Typ

Artikel

Journal

Tribology International

Band

131

Seiten

386-397

Anzahl der Seiten

12

ISSN

0301-679X

Publikationsdatum

03.2019

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffmechanik, Maschinenbau, Oberflächen und Grenzflächen, Oberflächen, Beschichtungen und Folien

Elektronische Version(en)

https://doi.org/10.1016/j.triboint.2018.11.006 (Zugang: Geschlossen)