飞行器复合材料结构雷击防护研究进展

摘要

介绍了飞机上雷电的分区、雷击电流的表征、雷击防护的标准、雷击防护等方法和研究.迄今雷击防护的方法主要有4种,分别是网箔保护法、表面层保护法、复合胶膜保护法和添加导电材料保护法.实验和理论研究表明,当电流波形相同时,烧蚀面积和深度随着峰值电流的增加而增加;当峰值电流相同时,随着T1/T2的增大,层合板烧蚀面积及烧蚀深度逐渐增大;雷击烧蚀损伤对复合材料层压板拉伸剩余强度起主导作用.%This paper introduces the division of lightning on the plane,the representation of the lightning current,the standard of lightning protection,the lightning protection method and the research.Nowadays,there are 4 main methods of lightning protection,namely grid protection method,surface layer protection method,composite film protection method and protection material protection method.Experiments and theories show that when the current waveform is the same,the ablation depth and area increases with the increase of the peak current;when the peak current is the same,with the increase of T1/T2,the ablation area and depth increases gradually;lightning damage play a leading role on the residual strength of composite laminates tensile.