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図 1 ボーイング 787 型機における複合材料の適用割合
(重量比)1)
29-2 航空機の雷環境と複合材の雷損傷 Aircraft Lightning Environment and Lightning Damage on Composite Materials
に対する安全性が保証されている必要がある。民間旅客機の設計指針は、米国連邦航空局 (FAA: Federal Aviation Administration) が定める米国連邦航空規則(FAR: Federal Aviation Regulations)の Part 25 に定められるが、その中で、被雷に関する構造健全性について、Sec. 25.581 Lightning protection15)に記載があり、被雷した際に航空機に壊滅的な影響が生じないように設計することが求め
や、様々な現象を考慮可能な数値解析手法の開発の取り組みが活発になっていくものと考えられる。 参考文献 1) 炭素繊維協会Webページ、 http://www.carbonfiber.gr.jp/field/craft.html 2) M. M. Newman, J. D. Robb: Aircraft Protection from Atmospheric Electrical Hazards, ASD
Technical Report 61-493, or L and T Report 374, Lightning and Transients Research
Institute, Minneapolis, Minnesota, December 1961. 3) Lightning Strike Survey Report for the Period of January 1965 through December of 1966,
Federal Aviation Agency Report of the Conference on Fire Safety Measures for Aircraft Fuel Systems. Appendix II, Department of Transportation, Washington D.C., December 1967.
4) B. I. Hourihan: Data from the Airlines Lightning Strike Reporting Project, June 1971 to November 1974, Summary Report GPR-75-004, High Voltage Laboratory, Electromagnetic Unit, Corporate Research and Development, General Electric Company, Pittsfield, Massachusetts, March 1975.
5) R. B. Anderson, H. Kroninger: Lightning Phenomena in the Aerospace Environment: Part II, Lightning Strikes to Aircraft, Proceedings of the 1975 Conference on Lightning and Static Electricity, December 1975.
6) J. A. Plumer, B. L. Perry: An Analysis of Lightning Strikes in Airline Operation in the USA and Europe, Proceedings of the 1975 Conference of Lightning and Static Electricity, December 1975.
7) O. K. Trunov: Conditions of Lightning Strikes in Air Transports and Certain General Lightning Protection Requirements," Proceedings of the 1975 Conference on Lightning and Static Electricity, December 1975.
8) N. O. Rasch, M. S. Glynn, J. A. Plumer: Lightning Interaction with Commercial Air Carrier Type Aircraft," International Aerospace and Ground Conference on Lightning and Static Electricity, Orlando, Florida, 26-28 June 1984, paper 21.
9) H. T. Harrison: UAL Turbojet Experience with Electrical Discharges, UAL Meteorological Circular No. 57, United Air Lines, Chicago, Illinois, January 1, 1965.
10) Ed Pupke: Lightning Effects Handbook, AGATE-WP3.1-031027-043, 2002 11) J. F. Shaeffer, G. L. Weinstock: Aircraft Related Lightning Mechanisms, Technical Report
AFAL-TR-72-386, prepared by the US Air Force Avionics Laboratory, Air Force systems Command, Wright-Patterson Air Force Base, Ohio, January 1973.
12) 石井、 雷放電と電気設備、 日本電気設備学会誌、 33, 11, 2013, pp 855-862 13) J. Montanya, F. Fabio, O. V. Velde, V. March, E. R. Williams, N/.Pineda, D. Romero, G. Sola,
M. Freij: Global distribution of winter lightning: a threat to wind turbines and aircraft, Natural Hazards and Earth Systems Sciences, 16, 2016, pp 1465-1472
14) 横山、 雷現象と雷サージの伝搬、 電気設備学会誌、 35, 2, 2015, pp 83-86 15) Standard Airworthiness Certification Regulations, 14, Code of Federal Regulation, Part 25,
§25.581 Lightning protection, Federal Aviation Administration 16) Aircraft Lightning Environment and Related Test Waveforms, ARP-5412-B, SAE standard,
2013 17) Aircraft Lightning Environment and Related Test Waveforms, CUROCAE ED 84, European
Organization for Civil Aviation Equipment, 2013 18) Aircraft Lightning Zoning, ARP-5414-A, SAE Standard, 2012 19) Y. Hirano, S. Katsumata, Y. Iwahori, Akira Todoroki: Artificial lightning testing on
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