Relationship between temperature distribution in EHL film and dimple formation

Kazuyuki Yagi, Keiji Kyogoku, Tsunamitsu Nakahara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper describes an experimental study on dimple formations under elastohydrodynamic lubrication (EHL) conditions. The oil film thickness between a ball surface and a sapphire disk was measured using optical interferometry and the temperatures of both the surfaces and of the oil film averaged across it were measured by an improved infrared emission technique. It was found that temperature profile across the oil film varies abruptly along the direction of the oil film thickness and the Couette flow decreases due to the viscosity wedge action as the oil flow is close to the dimple zone. The maximum temperature rise in the dimple zone sometimes reached above 400 K and thus the phase transition of the oil from liquid to glass may not occur.

Original languageEnglish
Title of host publicationProceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004
PublisherAmerican Society of Mechanical Engineers
Pages459-468
Number of pages10
EditionPART A
ISBN (Print)0791841812, 9780791841815
DOIs
Publication statusPublished - 2004
Externally publishedYes
Event2004 ASME/STLE International Joint Tribology Conference - Long Beach, CA, United States
Duration: Oct 24 2004Oct 27 2004

Publication series

NameProceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004
NumberPART A

Other

Other2004 ASME/STLE International Joint Tribology Conference
CountryUnited States
CityLong Beach, CA
Period10/24/0410/27/04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Yagi, K., Kyogoku, K., & Nakahara, T. (2004). Relationship between temperature distribution in EHL film and dimple formation. In Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004 (PART A ed., pp. 459-468). [TRIB2004-64073] (Proceedings of the ASME/STLE International Joint Tribology Conference, IJTC 2004; No. PART A). American Society of Mechanical Engineers. https://doi.org/10.1115/trib2004-64073