| 研究課題/領域番号 |
18F18778
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| 研究種目 |
特別研究員奨励費
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| 配分区分 | 補助金 |
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| 応募区分 | 外国 |
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| 研究分野 |
流体工学
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| 研究機関 | 日本大学 |
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研究代表者 |
彭 國義 日本大学, 工学部, 教授 (90295527)
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| 研究分担者 |
KLICHOVA DAGMAR 日本大学, 工学部, 外国人特別研究員
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| 研究期間 (年度) |
2018-11-09 – 2020-03-31
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| 研究課題ステータス |
完了 (2019年度)
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| 配分額 *注記 |
1,000千円 (直接経費: 1,000千円)
2019年度: 900千円 (直接経費: 900千円)
2018年度: 100千円 (直接経費: 100千円)
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| キーワード | Water Jet / Processing / Topography / Abrasive suspention jet / Ventilation / Cavitation / Abrasive water jet / Submerged cutting / Flow visualization / Image analysis |
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| 研究実績の概要 |
Abrasive suspension water jet (ASJ) technology is characterized in efficient acceleration of particles compared to abrasive injection jet (AIJ). Concerned on the performance of ASJ, the relation of machining property of abrasive water suspension jet was clarified in this work with an emphasis on the surface treatment related to the jet flow structure, working conditions and cutting parameters.
The main output of this research is the deepening of knowledge and practical experience in the field of high-speed water jets. International cooperation between the Nihon University and Institute of Geonics of the Czech Academy of Sciences has been established in the frame of practical research activities.
The practical part was that extensive experiments were carried out at the Nihon University in Koriyama. Machined samples were measured on the digital microscope Keyence VHX-6000. Measurement of the topography of all examined samples was performed on a Micro Professional FRT optical profilometer. Research of the topography of the surface created by the various types of water jets provides information on the formation of the jet and its efficiency in underwater cutting. This data obtained is useful to optimize ASJ technology to produce the required surface topography of various materials. In particular, it is a search for a connection between the selected technological parameters and the topography of the resulting surface.
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| 現在までの達成度 (段落) |
令和元年度が最終年度であるため、記入しない。
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| 今後の研究の推進方策 |
令和元年度が最終年度であるため、記入しない。
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