民机雷击附着区域的划分仿真研究
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摘要
雷击直接威胁民航飞机的飞行安全,雷击附着点和雷击附着区域的划分是雷击防护设计的首要步骤。基于此,采用三维电磁仿真软件CST中电磁工作室,利用边界单元法对多个等比例民机雷电附着区域划分进行有限元仿真分析研究。通过MATLAB软件线性拟合民机1A区域边缘结构电场强度与飞机最大电场强度的比值和飞机尺寸的关系,根据拟合公式对国产民机雷击附着区域完成划分,仿真分析结果与标准理论分区进行对比。结果表明,该拟合结果有效,对民机的雷击防护设计有着重要的参考意义。
The lightning is a threat to the safety of flying aircraft, while the division of lightning attachment points and lightning zoning are the first step in lightning protection design. Based on this, Simulation methods based on finite element are used to simulate lightning zoning on the many equal proportion model of civil aircrafts by boundary element method with EM studio of the 3 D electromagnetic simulation software CST. The relationship between the size of aircraft and the ratio of electric field intensity at edge of 1 A region to aircraft maximum electric field intensity is linearly fitted by MATLAB software. According to the fitting relationship, the lightning zoning of domestic civil aircraft is divided, and the numerical results are compared with the standard theory partition.The results show that the fitting results are effective and have important reference significance for the lightning protection design of civil aircrafts.
The lightning is a threat to the safety of flying aircraft, while the division of lightning attachment points and lightning zoning are the first step in lightning protection design. Based on this, Simulation methods based on finite element are used to simulate lightning zoning on the many equal proportion model of civil aircrafts by boundary element method with EM studio of the 3 D electromagnetic simulation software CST. The relationship between the size of aircraft and the ratio of electric field intensity at edge of 1 A region to aircraft maximum electric field intensity is linearly fitted by MATLAB software. According to the fitting relationship, the lightning zoning of domestic civil aircraft is divided, and the numerical results are compared with the standard theory partition.The results show that the fitting results are effective and have important reference significance for the lightning protection design of civil aircrafts.
引文
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[2] 朱逸生.纤维材料在航空领域的应用[J].合成纤维,2009,38(4):1-4 Zhu Y S.Application of fiber materials in aviation industry[J].Synthetic Fiber in China,2009,38(4):1-4
[3] 丁宁,赵彬,刘志强,等.复合材料层合板雷击烧蚀损伤模拟[J].航空学报,2013,34(2):301-308 Ding N,Zhao B,Liu Z Q,et al.Simulation of ablation damage of composite laminates subjected to lightning strike[J].Acta Aeronautica ET Astronautica Sinica,2013,34(2):301-308
[4] 纪朝辉,马倩倩,王志平,等.飞机复合材料雷击防护层设计与应用[J].宇航材料工艺,2011,41(5):50-54 Ji Z H,Ma Q Q,Wang Z P,et al.Design and application of lightning protection layer of airplane composite materials[J].Aerospace Materials and Technology,2011,41(5):50-54
[5] Perala R,Rudolph T,McKenna P,et al.Application of numerical analysis to the electromagnetic effects validation of aircraft[A].12th DASC AIAA/IEEE Digital Avionics Systems Conference[C],1993.185-190
[6] SAE.ARP5412.Aircraft lightning environment and related test waveforms[S].Warrendale:Society of Automotive Engineers,1999
[7] SAE.ARP5414A.Aircraft lightning zoning[S].Warrendale:Society of Automotive Engineers,2005
[8] SAE.ARP5416.Aircraft lightning test methods[S].Warrendale:Society of Automotive Engineers,2005
[9] 王恒,徐宏兵,高小红,等.基于电荷累积效应的飞机雷击分区快速仿真研究[J].微波学报,2014,30(S1):80-83 Wang H,Xu H B,Gao X H,et al.Based on the charge cumulative effect of aircraft lightning zoning fast simulation research[J].Journal of Microwaves,2014,30(S1):80-83
[10] Duan Z,Liu B,Liu Y L G,et al.The lightning protection tests for the radome in Y7-200A aircraft of China[J].Ge Growth Math Methods,1999,36(3):259-272
[11] 李继国,郎需义.H425直升机雷击分区[J].高电压技术,2017,43(5):1420-1424 Li J G,Lang X Y.Lightning strike zoning of helicopter H425[J].High Voltage Engineering,2017,43(5):1420-1424
[12] 高成,宋双,郭永超,等.飞机雷击附着区域的划分仿真研究[J].电波科学学报,2012(6):176-181,205 Gao C,Song S,Guo Y C,et al.Study of numerical simulation of aircraft attachment points and lightning zoning[J].The Chinese Journal of Radio Science,2012(6):176-181,205
[13] 赵玉龙,刘光斌,余志勇.飞行器雷击附着点数值仿真研究[J].微波学报,2012,28(4):39-42 Zhao Y L,Liu G B,Yu Z Y.Research on lightning attachment points simulation for aircraft[J].Journal of Microwaves,2012,28(4):39-42
[14] Song S,Gao C,Guo Y,et al.Study of numerical simulation of aircraft lightning zoning based on CST software[A].IEEE Second International Conference on Mechanic Automation and Control Engineering[C],2011.4428-4431