Temperature measurements of both sliding surfaces and an estimation of temperature profile across film thickness under EHL conditions

Kazuyuki Yagi, Keiji Kyogoku, Tsunamitsu Nakahara

研究成果: Contribution to journalArticle査読

抄録

An experimental study of temperature measurements of both sliding surfaces and estimation of film temperature profile across film thickness under point EHL conditions was carried out. An increase of a speed difference between both sliding surfaces resulted in a larger temperature difference between both sliding surfaces, which led to a change of the form of temperature distribution. The temperature of slower surface was higher than that of the faster surface as the velocity difference increased, and that the temperature gradient across film thickness also existed at the inlet region because the heat generated at the contact region was transferred back from the slower surface to this region. At a slip ratio of 0.6:1, the temperature distribution on both sliding surfaces did not show any significant difference, either in the forms or in their magnitudes, When the temperature distribution on both sliding surfaces changed, the temperature distribution in oil films varied as well. At slip ratios of 1:1 and 1.8:1, a temperature gradient in the direction of the clearance occurred and the highest temperature showed a local rise close to the outlet region at slip ratios of 0.6:1 and 1:1, but a slip ratio of 1.8:1, if shifted closer to the center of the contact zone on the disk surface.

本文言語英語
ページ(範囲)165-176
ページ数12
ジャーナルJapanese Journal of Tribology
47
2
出版ステータス出版済み - 12 1 2002
外部発表はい

All Science Journal Classification (ASJC) codes

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

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