Development of a lightning electromagnetic analysis method for CFRP for airplanes and the proposal of lightning protection design of airplanes
| Project/Area Number |
18K04113
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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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| Review Section |
Basic Section 21010:Power engineering-related
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| Research Institution | Doshisha University |
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Principal Investigator |
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 雷 / 炭素繊維強化プラスチック / 耐雷 / 電磁環境 / 連成解析 / 発生熱 / 耐雷設計 / 時間領域有限差分法 |
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| Outline of Final Research Achievements |
Carbon-fiber-reinforced-plastic (CFRP) panels used for airplanes are composed of many thin layers, the conductivity of each layer varies significantly dependent on the fiber direction. In this research work, a new method based on the finite-difference time-domain (FDTD) method, which includes the conductivity tensile matrix and the computation procedure of generated heat, has been developed. The developed method has been applied to analyses of a CFRP panel struck by lightning and other electric facilities. The representative results have been published in international and domestic journals as papers or short papers.
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| Academic Significance and Societal Importance of the Research Achievements |
CFRP積層板を用いた航空機に雷撃が生じた場合，金属に比べて導電率が低いことに起因して，発生熱も高まり，さらに，機内に侵入する雷電磁界の振幅も大きくなると考えられている。燃料タンク近傍での高電界や高温の発生は，爆発に繋がる危険性があるため，耐雷対策が不可欠である。しかし，このような非常に薄くて異方性をもつ層構造のCFRP機体の耐雷設計は手探りの状態で，未だ確立されるには至っていなかった。本研究では，雷撃を受けたCFRP機体内の雷電流分布，各部の発生電界と発生熱の連成シミュレーション法とモデルの開発を行い，より効率的なCFRP航空機の耐雷対策の立案を行うことが可能となった。
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Report
(5 results)
Research Products
(65 results)
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[Book] 過渡現象論2022
Author(s)
馬場 吉弘
Total Pages
192
Publisher
数理工学社
ISBN
9784864810821
Related Report
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