1993 Fiscal Year Final Research Report Summary
Comparison of Oil Film Thickness on Rolling Motion and Sliding Motion
| Project/Area Number |
04650138
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
機械要素
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| Research Institution | Fukuyama University |
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Principal Investigator |
TERAUCHI Yoshio Fukuyama University, Faculty of Engineering, Professor, 工学部, 教授 (70034296)
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| Project Period (FY) |
1992 – 1993
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| Keywords | Lubricant / Tribology / Oil Film Thickness / Interferometric Method / Non-Newtonian Fluid / Eyling Viscosity / Shearing Heat / Gear |
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| Research Abstract |
The elastohydrodynamic oil films formed between a steel ball and a sapphire disk were observed by an optical interference method. In this study, a paraffin base oil, a synthetic oil and a traction oil were adopted for lubricants. Then the influence of a sliding velocity on the elastohydrodynamic film of each oil was investigated. The experiment makes it evident that the increase of the sliding ratio tends to reduce the film thickness, and fluid properties of the oils influence the rate of the film thickness reduction. This experimental result can be explained by the theoretical calculation of the elastohydrodynamic lubrication which takes account of the effect of the viscous heating and the effect of the eyring viscosity.
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