| Project/Area Number |
15K06615
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Tokyo University of Marine Science and Technology |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 環境対応型潤滑油 / トライボロジー特性 / 潤滑油 / トライボロジー |
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| Outline of Final Research Achievements |
In this research, we focused on the influence of artificial seawater on EAL(Environmentary accepted lubricants) on tribological characteristics, and found out saturated ester EAL, unsaturated ester EAL, nonester EAL and a mineral oil by using 3 pin on disk test with specimens used for stern tube bearings and propeller shaft as test specimens. We conducted a friction test on lubricants intentionally containing artificial seawater. In order to evaluate the triborogical characteristics, we compared the results with the Stribeck curves under various operating conditions. When mixed mineral water, we found that ester EAL is more affected by natural seawater than mineral oil.
Additionally, we focused on the frictional behavior of these oils of stick slip phenomena by using the 3 pin on disk test apparatus. That results were that stick slip phenomenon was happened on the ester EAL, however, conventional oil was not happened.
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