Behavior of EHL Films in Reciprocating Motion

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概要

• 論文の詳細を見る

• The behavior of elastohydrodynamic lubrication(EHL) films formed between a steel ball and an oscillating glass disk is examined by means of the optical interferometry technique, and the results obtained are compared with those of tests conducted under unidirectional conditions. The surface traction is also measured. The film profile in the contact area breathes cyclically because the wedging and squeezing actions are not in phase. In reciprocation under pure sliding, the thick oil film entrapped between both surfaces at the stroke end moves towards the exist side at about half the velocity of the glass disk. Under conditions of a short stroke and a high frequency, air bubbles produced in the downstream result in oil starvation in the next stroke, so that the EHL film collapses. In the full EHL regime, the central oil film thickness and the surface traction at the stroke center are almost the same as those under unidirectional conditions. It is also found that the oil behaves like a non-Newtonian fluid, and as a result the behavior of EHL films varies with oil and type of motion.

• 一般社団法人日本機械学会の論文
• 1995-09-15

著者

• NISHIKAWA Hiroshi

  Faculty of Agriculture, Kochi University

• Nishikawa H

  Osaka Univ. Osaka Jpn

• Handa Kohtaroh

  Hitachi Ltd.

• Kaneta Motohiro

  Faculty of Engineering, Kyushu Institute of Technology

• Kaneta M

  Faculty Of Engineering Kyushu Institute Of Technology

• Kaneta Motohiro

  Faculty Of Engineering Kyushu Institute Of Technology

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