Study on improvement of lubrication properties by surface micro-texturing in reciprocating lubricated surfaces

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560985
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: Tokyo University of Marine Science and Technology
• Principal Investigator: JIBIKI Tatsuhiro 東京海洋大学, 海洋科学技術研究科, 教授 (40322094)
• Co-Investigator(Kenkyū-buntansha): SHIMA Masayuki 東京海洋大学, 大学院海洋科学技術研究科, 教授 (70092583) ; SUGAWARA Takashi 東京海洋大学, 大学院海洋科学技術研究科, 助手 (90456319)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 表面テスクスチャ / 表面微細加工 / 往復摺動潤滑面 / 潤滑特性 / トライボロジー

Outline of Final Research Achievements

The effect of micro-texturing on improvement of lubrication properties in reciprocating lubricated surface was investigated by various patterns such as unidirectional groove, long form dimple, cross-groove, dimple, and non-treated mirror finished surface. The conclusions are as follows ; In the case of large reciprocating stroke, "dimple pattern" is most suitable because lubricating oil in the dimple is possible to bear the normal load. On the other hand, in the case of small reciprocating stroke, "cross-grooved pattern" is most suitable because a supply of the lubricating oil from outside of contacting surfaces is possible in an acceleration effect of the initial running-in process.

Free Research Field

トライボロジー