系统仿真学报 ›› 2019, Vol. 31 ›› Issue (5): 992-1001.doi: 10.16182/j.issn1004731x.joss.17-0159

• 仿真应用工程 • 上一篇    下一篇

复合材料表面金属网对直升机雷击效应的影响

黄军玲, 谢家雨   

  1. 中国民用航空飞行学院航空工程学院, 四川 广汉 618307
  • 收稿日期:2017-04-19 修回日期:2017-08-21 出版日期:2019-05-08 发布日期:2019-11-20
  • 作者简介:黄军玲(1985-),女,江西,硕士,高级实验师,研究方向为飞机雷击间接效应仿真分析;谢家雨(1983-),男,四川,硕士,副教授,研究方向为复合材料雷击效应。
  • 基金资助:
    民航科技创新引导基金(FDST0251512)

Influence of Composite Materials Surface Metal Mesh on Helicopter Lightning Stroke Effects

Huang Junling, Xie Jiayu   

  1. Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan 618307, China
  • Received:2017-04-19 Revised:2017-08-21 Online:2019-05-08 Published:2019-11-20

摘要: 直升机的复合材料构件上通常采取贴金属网的方法防止雷击。针对不同材质和不同厚度金属网对直升机雷击效应的作用效果进行了对比研究:采用SAE-ARP5416推荐的方法,用数值仿真软件对直升机模型进行大电流注入仿真。结果表明:复合材料表面金属网可以有效防护雷击效应,且铜网和铝网防雷击效果差异不明显;铝网厚度小于0.15 mm时,其防雷击效果随着厚度增加而增强,当厚度超过0.15 mm时,效果无太大变化。建议选择铝网作为直升机复合材料导电层,且厚度宜约为0.15 mm。

关键词: 雷电间接效应, 复合材料, 金属网, 表面电流分布, 电磁场分布, 感应电流

Abstract: The metal wire mesh is usually adopted to prevent the lightning stroke on composite materials. The effects of different materials and different thickness of metal mesh on helicopter lightning electromagnetic effect are compared. According to the method recommended by SAE-ARP5416, a numerical simulation software is used for carrying out the high current injection simulation. The results show that the surface mount metal mesh can effectively reduce the harm of lightning electromagnetic coupling effect; the difference between aluminum and copper on anti-lightning stroke effect is not obvious; when the thickness of aluminum grid is less than 0.15 mm, the aluminum on anti-lightning stroke effect is enhanced with thickness increasing; when the thickness is more than 0.15 mm, the value tends to smooth. It is recommended to select aluminum mesh as a helicopter composite conductive layer, and the thickness is at 0.15 mm.

Key words: lightning indirect effects, composite materials, metal wire mesh, surface current distribution, EM field distribution, induced current

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