Temperature measurements of oil film and surface in point contact EHL under high slip ratio condition

Kazuyuki Yagi, Keiji Kyogoku, Tsunamitsu Nakahara

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)

抄録

This paper describes an experimental study on the viscosity wedge effect in point contact EHL under high slip ratio condition. In order to discuss the effect, the temperature rises on the ball surface and in the oil film as well as the film thickness were measured with a ball-on-disk apparatus. Both the temperature measurements were conducted by an improved infrared technique with two kinds of optical band pass filters. The film thickness measurement employed the two color optical interferometry technique. Experimental results indicate that the oil film was formed under the steady state condition in spite of no entertainment velocity and a specific conical surface depression was found in the Hertzian contact area. The film thickness in the depression was sensitive to the slip ratio, the sliding speed and the load. The temperature increases markedly in the depression. As a conclusion, these results appear to be caused by the effect of viscosity wedge.

本文言語英語
ページ(範囲)725-732
ページ数8
ジャーナルToraibarojisuto/Journal of Japanese Society of Tribologists
46
9
出版ステータス出版済み - 12 1 2001
外部発表はい

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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