Otsu Takefumi

オオツタケフミ | Otsu Takefumi

Affiliation and department：

Research field (2)： Machine elements and tribology , Design engineering

Research keywords (3)： Tribology , Machine elements , Machine design

Research theme for competitive and other funds (9)：

2021 - 2024 蛍光スペクトル解析による粘度測定法の確立と潤滑膜のレオロジーモデルの探求
2021 - 2023 蛍光スペクトル解析による弾性流体潤滑膜の粘度分布測定とトラクション発生メカニズムの検討
2020 - 2021 油圧機器におけるキャビテーション発生現象の解明とそれを応用した設計法の提案
2018 - 2021 蛍光観察による新規的レオロジー測定技術の開発と潤滑膜その場観察への応用
2015 - 2018 Characteristic evaluation of hydrodynamic bearing and in-situ observation of cavitation under ultra-high vacuum

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Papers (38)：

Takefumi Otsu. Measurements of viscosity profile in elastohydrodynamic lubrication film using fluorescence method under various contact pressure conditions. Transactions of the JSME. 2022. 8. 914. 1-10
Yuji Higaki, Riku Furusawa, Takefumi Otsu, Norifumi Yamada. Zwitterionic Poly(carboxybetaine) Brush/Albumin Conjugate Films: Structure and Lubricity. Langmuir. 2022. 38. 9278-9284
Ryota Takase, Yuta Tsubouchi, Takefumi Otsu, Takashi Kataoka, Tatsuya Iwasaki, Masashi Kataoka, Hiroshi Tsumura. The effects of romosozumab combined with active vitamin D3 on fracture healing in ovariectomized rats. Journal of Orthopaedic Surgery and Research. 2022. 17
Shinji Hashimura, Hisanori Sakai, Kai Kubota, Nozomi Ohmi, Takefumi Otsu, Kyoichi Komatsu. Influence of configuration error in bolted joints on detection error of clamp force detection method. International Journal of Automation Technology. 2021. 15. 4. 396-403
Takefumi Otsu, Kyoichi Komatsu, Shinji Hashimura. Discussion on shear properties and flow model in screw tightening lubricant PIB under low sliding speed conditions. Tribology International. 2020. 151. 1-10

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MISC (12)：

Takefumi Otsu. Introduction to Elastohydrodynamic Lubrication. Journal of Japanese Society of Tribologists. 2023. 68. 7. 455-457
Takefumi Otsu. Lubrication Properties of Screw Tightening Lubricant Polyisobutylene. 2022. 57. 3. 118-125
Takefumi Otsu. Recent Trends in Rheological Measuring Techniques of Elastohydrodynamic Lubrication Film Using Fluorescence Method. Journal of Japanese Society of Tribologists. 2021. 66. 2. 116-123
Takefumi Otsu. Tribological properties of lubricant additives. Journal of JFRI (The Japan Research Institute for Screw Threads and Fasteners). 2020. 51. 5. 113-122
Takefumi Otsu. Study on lubrication mechanism of screw tightening. Journal of JFRI (The Japan Research Institute for Screw Threads and Fasteners). 2019. 50. 9. 247-257

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Books (2)：

専門基礎ライブラリー実例で学ぶ機械設計製図
実教出版 2019
専門基礎ライブラリー機械設計
実教出版 2017

Professional career (1)：

博士(工学) (九州大学)

Work history (3)：

2019/04 - 現在 Oita University Faculty of Science and Technology Associate Professor
2016/04 - 2019/03 Oita University Faculty of Engineering Assistant Professor
2012/04 - 2016/03 Kurume National College of Technology Department of Mechanical Engineering Assistant Professor

Committee career (13)：

2023 - 現在日本設計工学会九州支部幹事
2023 - 現在日本設計工学会九州支部商議員
2021 - 現在 9th International Tribology Conference, Fukuoka 2023 (ITC Fukuoka 2023) 実行委員会委員
2019 - 現在日本トライボロジー学会運営委員会委員
2019 - 現在日本機械学会機素潤滑設計部門トライボロジー技術企画委員会委員

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Association Membership(s) (5)：

Society of Tribologists and Lubrication Engineers , JAPAN SOCIETY FOR GRAPHIC SCIENCE , JAPAN SOCIETY FOR DESIGN ENGINEERING , THE JAPAN SOCIETY OF MECHANICAL ENGINEERS , JAPANESE SOCIETY OF TRIBOLOGISTS

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