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Investigation of EHL film behavior based on high precision pressure, temperature and film thickness distribution measurement

Research Project

Project/Area Number 16K06045
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionKyushu Institute of Technology

Principal Investigator

NISHIKAWA Hiroshi  九州工業大学, 大学院工学研究院, 助教 (40208161)

Research Collaborator KANETA Motohiro  
OHNO Nobuyoshi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords弾性流体潤滑 / 油膜厚さ / 摩擦係数 / グリース / EHL / 膜厚 / 垂直運動 / 増ちょう剤 / トライボロジー / 粘度圧力係数 / 高圧粘度 / 閉じ込め / 摩擦 / 油膜 / 厚さ / 粘度 / 圧力 / 温度
Outline of Final Research Achievements

Mechanical elements such as rolling bearings operate under elastohydrodynamic lubrication (EHL). We improved the measurement method under EHL contact consisting of a ball and a disc and researched its behavior.
The relationship between the entrapped oil film thickness and the approach speed, ball radius, elastic modulus and oil property etc. under impact motion was investigated and a film thickness equation was proposed. The grease formed a thick film at very low speed rolling or vertical motion, and the sliding friction coefficient was largely different depending on the thickener type.

Academic Significance and Societal Importance of the Research Achievements

垂直運動EHL下の油膜厚さの計算ができることで機械要素の作動状態を予測でき、機械の設計における事前評価が可能になる。グリースが極低速で厚膜を形成すること、極低速垂直運動で増ちょう剤膜の特性を評価することでグリース評価、開発に貢献することができる。潤滑下で作動する機械要素の性能を左右する油膜挙動の把握を行うことで、省エネルギー・省資源につながる機械要素の性能向上・寿命改善が可能になる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (34 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (5 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (27 results) (of which Int'l Joint Research: 11 results) Remarks (1 results)

  • [Int'l Joint Research] Brno University of Technology(チェコ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Qingdao University of Technology(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Brno University of Technology(チェコ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] 青島理工大学(中国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Brno university of technology(チェコ)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Deformation of Rough Surfaces in Point EHL Contacts2019

    • Author(s)
      Krupka I., Hartl M., Matsuda K., Nishikawa H., Wang J., Guo F., Yang P., Kaneta
    • Journal Title

      Tribology Letters

      Volume: 67 Issue: 2

    • DOI

      10.1007/s11249-019-1145-z

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Behaviour of Entrapped Grease Film under Low Speed Sliding Motion2019

    • Author(s)
      Hiroshi Nishikawa
    • Organizer
      ECOTRIB 2019 (7th European Conference on Tribology)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pitch of washboard/fluting pattern due to electrical pitting Pitch of washboard/ fluting pattern due to electrical pitting2018

    • Author(s)
      Kenji SUNAHARA, Satoshi KITAZAKI, Yutaka YAMAGUTI, Masaharu YAMAMOTO, Yuji ISHIDA, Iwao SASAKI, Hiroshi NISHIKAWA, Kenji MATSUDA
    • Organizer
      第9回日中トライボロジー先端フォーラム
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 金属ベルト式無段変速機におけるベルト/ プーリー間の油膜解析2018

    • Author(s)
      小野佑樹, 松本謙司, 西川宏志, 三原雄司
    • Organizer
      トライボロジー学会2018 春 東京
    • Related Report
      2018 Annual Research Report
  • [Presentation] 洗濯板状電食痕のピッチ決定ルールの考察~チューリングパターンとの類似性~2018

    • Author(s)
      上西健太, 砂原賢治, 北崎訓, 山口裕, 山本正治, 石田雄二, 佐々木厳, 西川宏志, 松田健次
    • Organizer
      トライボロジー学会2018 春 東京
    • Related Report
      2018 Annual Research Report
  • [Presentation] 洗濯板状電食痕の形成~ごく初期における放電箇所の特定~2018

    • Author(s)
      山下大輝, 砂原賢治, 北崎訓, 山口裕, 山本正治, 石田雄二, 佐々木厳, 西川宏志, 松田健次
    • Organizer
      トライボロジー学会2018 春 東京
    • Related Report
      2018 Annual Research Report
  • [Presentation] 外部スイッチング電源による洗濯板状電食痕の形2018

    • Author(s)
      田中龍太郎, 砂原賢治, 北崎訓, 山口裕, 山本正治, 石田雄二, 佐々木厳, 西川宏志, 松田健次
    • Organizer
      トライボロジー学会2018 春 東京
    • Related Report
      2018 Annual Research Report
  • [Presentation] グリース閉じ込め膜の摩擦挙動2018

    • Author(s)
      西川宏志, 仲摩綾香
    • Organizer
      トライボロジー学会2018 春 東京
    • Related Report
      2018 Annual Research Report
  • [Presentation] Observations of oil film behaviour in impact EHL Observations of oil film behaviour in impact EHL2018

    • Author(s)
      Hiroshi Nishikawa, Yuma Mita, Nobuyoshi Ohno
    • Organizer
      NORDTRIB 2018 (The 18th Nordic Symposium on Tribology) NORDTRIB 2018 (The 18th Nordic Symposium on Tribology)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hiroshi Nishikawa2018

    • Author(s)
      Hiroshi Nishikawa
    • Organizer
      45th LEEDS-LYON SYMPOSIUM on TRIBOLOGY
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 垂直運動EHL 下における閉じ込め油膜に及ぼすヤング率の影響2018

    • Author(s)
      河本拓哉, 西川宏志, 大野信義
    • Organizer
      トライボロジー会議2018 秋 伊勢
    • Related Report
      2018 Annual Research Report
  • [Presentation] グリース閉じ込め膜の摩擦挙動2018

    • Author(s)
      西川宏志,, 仲摩綾香
    • Organizer
      トライボロジー学会2018春 東京
    • Related Report
      2017 Research-status Report
  • [Presentation] Observations of Oil Film Behaviour in Impact EHL2018

    • Author(s)
      Hiroshi Nishikawa, Yuma Mita, Nobuyoshi Ohno
    • Organizer
      The 18th Nordic Symposium on Tribology (NORDTRIB 2018)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Behaviour of Entrapped Oil Film in Point Contact EHL2017

    • Author(s)
      Hiroshi Nishikawa
    • Organizer
      World Tribology Congress 2017
    • Place of Presentation
      Beijin, China
    • Year and Date
      2017-09-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of groove on behavior of point contact EHL film under vertical motion2017

    • Author(s)
      Yuma Mita, Hiroshi Nishikawa, Nobuyoshi Ono
    • Organizer
      44rd Leeds-Lyon Symposium on Tribology
    • Place of Presentation
      Lyon, France
    • Year and Date
      2017-09-04
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 垂直運動下におけるEHL閉じ込め油膜挙動に及ぼす溝の影響(第2報)-粘度-圧力係数αの影響-2017

    • Author(s)
      三田雄真, 西川宏志
    • Organizer
      トライボロジー会議2017 春
    • Place of Presentation
      東京, 日本
    • Year and Date
      2017-05-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 垂直運動下におけるEHL閉込め油膜厚さ計算式の検討 (第2報)2017

    • Author(s)
      米原匡亮, 村上雄一, 三田雄真, 池田直哉, 西川宏志, 大野信義
    • Organizer
      トライボロジー会議2017 春
    • Place of Presentation
      東京, 日本
    • Year and Date
      2017-05-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 垂直運動下における EHL 閉込め油膜厚さ計算式の検討 (第2報)2017

    • Author(s)
      米原匡亮, 村上 雄一, 三田雄真, 池田直哉 , 西川宏志, 大野信義
    • Organizer
      トライボロジー学会2017春 東京
    • Related Report
      2017 Research-status Report
  • [Presentation] 垂直運動下におけるEHL閉じ込め油膜挙 動に及ぼす溝の影響(第2報) - 粘度-圧 力係数αの影響 -2017

    • Author(s)
      三田雄真, 米原匡亮, 村上 雄一, 池田直哉 , 西川宏志
    • Organizer
      トライボロジー学会2017春 東京
    • Related Report
      2017 Research-status Report
  • [Presentation] Effect of groove on behavior of point contact EHL film under vertical motion2017

    • Author(s)
      Yuma Mita, Hiroshi Nishikawa, Nobuyoshi Ohno
    • Organizer
      44rd LEEDS-LYON SYMPOSIUM on TRIBOLOGY
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Behaviour of entrapped oil film in point contact EHL2017

    • Author(s)
      Hiroshi Nishikawa, Yuma Mita, Nobuyoshi Ohno
    • Organizer
      WTC2017(The 6th World Tribology Congress)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Behaviour of grease EHL films at very low speed2017

    • Author(s)
      Hiroshi Nishikawa, Naoya Ikeda
    • Organizer
      WTC2017(The 6th World Tribology Congress)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 垂直運動下におけるEHL閉じ込め油膜挙 動に及ぼす溝の影響(第3報)2017

    • Author(s)
      三田雄真, 西川宏志, 大野信義
    • Organizer
      トライボロジー会議2017秋 高松
    • Related Report
      2017 Research-status Report
  • [Presentation] Influence of Lubricant Properties on Impact EHL2017

    • Author(s)
      Hiroshi Nishikawa, Yuma Mita, Nobuyoshi Ohno
    • Organizer
      トライボロジー会議2017秋 高松
    • Related Report
      2017 Research-status Report
  • [Presentation] 垂直運動下におけるEHL閉込め油膜厚さ計算式の検討2016

    • Author(s)
      村上雄一, 三田雄真, 西川宏志 大野信義
    • Organizer
      トライボロジー会議2016 秋
    • Place of Presentation
      新潟, 日本
    • Year and Date
      2016-10-12
    • Related Report
      2016 Research-status Report
  • [Presentation] 垂直運動下におけるEHL閉じ込め油膜挙動に及ぼす溝の影響2016

    • Author(s)
      三田雄真, 村上雄一, 西川宏志
    • Organizer
      トライボロジー会議2016 秋
    • Place of Presentation
      新潟, 日本
    • Year and Date
      2016-10-12
    • Related Report
      2016 Research-status Report
  • [Presentation] Behavior of Point Contact EHL Film under Vertical Motion2016

    • Author(s)
      Yuma Mita, Hiroshi Nishikawa, Nobuyoshi Ohno
    • Organizer
      43rd Leeds-Lyon Symposium on Tribology
    • Place of Presentation
      Leeds, UK
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Behaviour of EHL Films under Impact Loading2016

    • Author(s)
      Hiroshi Nishikawa, Nobuyoshi Ono
    • Organizer
      Nordtrib 2016
    • Place of Presentation
      Aulanko, Finland
    • Year and Date
      2016-06-14
    • Related Report
      2016 Research-status Report
  • [Remarks] 西川宏志 研究紹介ホームページ

    • URL

      https://nishikawah.wixsite.com/kit-nishikawa

    • Related Report
      2018 Annual Research Report 2017 Research-status Report

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Published: 2016-04-21   Modified: 2022-02-22  

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