Elucidation of Various Phenomena Induced by High-Speed Penetration in Granular Materials
| Project/Area Number |
24560978
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Aerospace engineering
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
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| Keywords | 粒状物質 / 高速貫入 / 速度計測 / 軌道計測 / 粒子破砕 / 貫入速度計測 / 破砕強度 / 砂 / マグネット・コイル法 / 偏心 / 波の伝播速度 / 国際情報交換 / アメリカ |
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| Outline of Final Research Achievements |
High-speed penetration experiments into sands were performed using a vertical powder gun and a penetration velocity of projectile was measured by Magnet-Coil method developed in this research. The behavior of projectile changed at transition speed, and it was found that the transition speed give a fairly good agreement with the elastic wave speed.
In our high-speed penetration experiments, it was found that the penetrating projectile meandered. In order to measure the trajectory accurately, free fall experiments were performed and the output signal of Magnet-Coil method was formulated using distance from coil center and projectile inclination as parameter. This information is very valuable to establish the method of identification for location and attitude of projectile.
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Report
(4 results)
Research Products
(19 results)
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[Presentation] 縦型無隔膜ガス銃の性能評価2015
Author(s)
ガーディナー ピーター，江川祐也，渡辺圭子
Organizer
関西学生会平成26 年度学生員卒業研究発表講演会
Place of Presentation
京都大学（京都府・京都市）
Year and Date
2015-03-14
Related Report
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