CAJ | 학술논문

研究了目前世界上最大的重型直升机米-26受雷击毁坏事件，这次事故中雷击的直接损伤是尾桨后缘与玻璃钢管梁在剪切力和离心力作用下脱离，它对飞机的二次损伤是使尾斜撑动力不平衡，出现约1m长的物理撕裂，飞机不能继续飞行而迫降。分析表明：闪电击中复合材料结构时可能会导致结构失效或大面积损伤，典型的闪电防护包括在复合材料结构的外表面有可能出现直接闪电附着的地方加上金属丝或金属网，以铝丝网为最佳。
연구료목전세계상최대적중형직승궤미-26수뢰격훼배사건，저차사고중뢰격적직접손상시미장후연여파리강관량재전절력화리심력작용하탈리，타대비궤적이차손상시사미사탱동력불평형，출현약1m장적물리시렬，비궤불능계속비행이박강。분석표명：섬전격중복합재료결구시가능회도치결구실효혹대면적손상，전형적섬전방호포괄재복합재료결구적외표면유가능출현직접섬전부착적지방가상금속사혹금속망，이려사망위최가。
After the lightning accident, Mi-26, the biggest heavy helicopter in the world, was studied.The direct damage of the lightning was on the trailing edge of tail rotor and glass reinforced plastic pipe girder de-tached by the sheering force and centrifugal force .They made the hammer brace unbalanced with a physical tearing about 1m as secondary damage.The aircraft had to make a forced landing after losing fight ability.The results show that when composite construction was hit by the lightning , structure failure and damage of large acreage would be the consequence .Typical lightning protection including adding wire and wire netting , such as alumium netting to the structure surface can increase greater possibility of direct lightning adherence .