KOIKE Hitonobu

写真a

Affiliation

Engineering educational research section Mechanical and Intelligent Engineering Program 

Title

Assistant Professor

External Link

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Research Areas 【 display / non-display 】

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Design engineering

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Machine elements and tribology

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Papers 【 display / non-display 】

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Books 【 display / non-display 】

  • Effect on PEEK/Graphite Film for Raceway Surface of PEEK Hybrid Ball Bearings with Surface Crack

    Koike H., Harajiri T., Haraguchi T., Matsueda T., Mizobe K., Kida K.（ Role： Sole author）

    Springer Proceedings in Materials  2024 

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    To clarify effect on the composite film layer of PEEK and graphite in PEEK hybrid radial alumina ball bearings with surface fatigue cracks, rolling contact fatigue tests were performed by using the PEEK bearing’s inner rings with the surface cracks in the dry and water conditions. When applied load and rotational frequency of the bearing were 98 N and 600–1400 min<sup>−1</sup>, the number of fatigue cycles of the PEEK hybrid bearings reached 1.0E6 cycles. The PEEK composite film containing nano-sized graphite particle covered the surface cracks on the PEEK ring’s raceway after the tests. In addition, friction heat and cyclic compression caused the plastic flow in the composite film layer of PEEK and graphite. Due to effect of the PEEK/graphite film, the fusion of the cracks on the raceway surface of the PEEK inner ring occurred. The accumulation layer of PEEK/graphite film reduced the surface defects such as surface cracks on the raceway of PEEK inner ring, which improved the bearing’s performance.

    DOI： 10.1007/978-981-97-1594-7_2

    Scopus

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MISC 【 display / non-display 】

  • Comparison of Accuracy of Backlash and Fatigue Wear of PEEK-graphite Composite and UHMWPE Bushes in Robot Joint

    Hitonobu Koike, Mizuho Kiba, Kazuya Nishitani, Kenji Kanemasu, Katsuyuki Kida

    FRONTIERS OF MANUFACTURING SCIENCE AND MEASURING TECHNOLOGY V   655 - 662   2015

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    Language：English   Publishing type：Research paper, summary (international conference)  

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Presentations 【 display / non-display 】

  • Wear evaluation of resin composite carbon graphite bearings for canned motor pump in dry environments International conference

    Hitonobu Koike, Kiichiro Arai, Koki Ohira, Shinichiro Ejiri, Masatake Hattori

    The 10th International Conference on Mechanical Structures and Smart Materials  2025.5.17 

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    Event date： 2025.5.17 - 2025.5.19

    Language：English   Presentation type：Oral presentation (general)  

  • Effect on thermal deformation and fatigue wear on PEEK-PTFE composite bearing with a jet cooler under dry condition International conference

    Yuto Kase, Hitonobu Koike, Koshiro Mizobe, Katsuyuki Kida

    The 10th International Conference on Mechanical Structures and Smart Materials  2025.5.17 

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    Event date： 2025.5.17 - 2025.5.19

    Language：English   Presentation type：Oral presentation (general)  

  • ドライ環境下の樹脂含浸カーボングラファイトベアリングの摩耗評価

    荒井, 古池, 江尻, 大平 , 服部

    日本機械学会九州支部第78期総会・講演会  2025.3.6 

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    Event date： 2025.3.6

    Language：Japanese   Presentation type：Oral presentation (general)  

  • Measurement of Fatigue Crack on PEEK Radial Bearings under Water and Dry Repeated Conditions International conference

    F. Anis, H. Koike, R. Yagasaki, Y. Nakamura, H. Koike, K. Mizobe and K. Kida

    2024 The 13thInternational Conference on Advanced Materials and Engineering Materials  2024.12.18 

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    Event date： 2024.12.16 - 2024.12.18

    Language：English   Presentation type：Oral presentation (general)  

  • ドライ環境下におけるキャンドモータ 用滑り軸受の摺動面挙動に関する研究

    荒井, 古池, 江尻, 大平 , 服部

    ターボ機械協会 第 91 回熊本八代術講演会  2024.9.17 

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    Event date： 2024.9.17

    Language：Japanese   Presentation type：Oral presentation (general)  

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Awards 【 display / non-display 】

  • BestPaperAward

    2023.7   CMPSE2023 organizing committee   Effect on PEEK/graphite film for raceway surface of PEEK hybrid ball bearings with surface crack

    H.Koike,T.Haraguchi,T.Harajiri , T.Matsueda , K.Mizobe , K.Kida

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    Award type：Award from international society, conference, symposium, etc. 

  • BestPaperAward

    2019.10   CMPSE2019 organizing committee   Observation of Tribological Wear on PEEK Shaft with Artificial Defect under Radial Rolling Sliding Point Contact

    Hitonobu KOIKE「他」

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    Award type：Award from international society, conference, symposium, etc.  Country：Thailand

  • BestPaperAward

    2019.4   ICAMEM2019 organizing committee   Observation of Tribological Fatigue Fracture on PEEK Shaft with Artificial Defect under One-point Rolling Contact by using 2.5D Layer Method

    Hitonobu KOIKE「他」

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    Award type：Award from international society, conference, symposium, etc.  Country：Hong Kong

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • 微細加工面の摩擦化学反応によるハイブリッドポリマーベアリング自己潤滑膜の制御

    Grant number：23K03647  2023.04 - 2027.03

    独立行政法人日本学術振興会   科学研究費基金  基盤研究(C)

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    Authorship：Principal investigator 

  • ハイブリッドポリマー軸受の摩擦化学反応による自己修復発現メカニズムの解明

    Grant number：19K04150  2019.04 - 2023.03

    独立行政法人日本学術振興会  科学研究費補助金  基盤研究(C)

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    Authorship：Principal investigator  Grant type：Competitive

  • A study on self-lubrication film with tribo-chemical reaction in hybrid polymer bearing

    Grant number：16K06042  2016.04 - 2019.03

    Grant-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research(C)

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    Authorship：Principal investigator 

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Other research activities 【 display / non-display 】

  • ポンプ開発（軸受の改善等）

    2023.10

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    企業とのポンプ開発評価に関する研究（軸受の改善等）

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Available Technology 【 display / non-display 】

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