航空機における複合材利用と新たな雷害対策技術
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概要
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Airplane companies have required the improvement of fuel efficiency because of steep rise in oil prices; a lot of new technologies have been utilized for latest airplanes. Lately, composites such as CFRP (Carbon Fiber Reinforced Plastic) have been used as structural materials; lightness and long utilization of airplanes have been realized. An airplane often has lightning strikes when going through between thundercloud and the earth. With the utilization of CFRP instead of other metal materials such as aluminum, new lightning protection technologies have made remarkable progress. In this paper, specially, researches about lightning current distribution on CFRP structures, suppression methods of discharge around a fastener and damage mechanism of a lightning strike point have been discussed.