中国舰船研究2018，Vol.13Issue(2)：140-148,9.DOI:10.3969/j.issn.1673-3185.2018.02.020
飞行器雷击瞬态电磁响应数值仿真
Numerical simulation of transient electromagnetic response of aircraft to lightning strikes
李茜华 1陈曦 1刘贺楠 2胡志军 1彭勇 1龙中权 1郭俊2
作者信息
- 1. 北京宇航系统工程研究所,北京100076
- 2. 西安交通大学电气工程学院,陕西西安710049
- 折叠
摘要
Abstract
[Objectives]With the rapid development of space technology, launching aircraft at sea has gradually become a future development trend. Aircraft flying in the atmosphere will sometimes encounter lightning strikes,which can cause damage to airborne equipment.[Methods]In response to this issue, two aircraft models(one with a gap and one with no gap)are built. Based on the CST transmission line matrix method,the induced electric and magnetic fields,surface current and induced current distribution of the cables of the two aircraft models are studied. At the same time,the changes in induced current in cables of different lengths are studied.[Results]For the same aircraft model,the surface electric and magnetic fields and internal electric and magnetic fields at the same axial position are not only different in induction peak value but also in change trend.The gap has little effect on the surface electric and magnetic fields of the aircraft,but the influence is particularly obvious inside the aircraft.The gap of the aircraft has a great influence on the induced current of the cable.Compared with the model with a gap,the single wire induced current peak of the model with no gap decreased by 1 000 times,and the current peak of the coaxial wire decreased by 15 times.[Conclusions]The research results of this paper can provide references for understanding the electromagnetic effect of lightning strikes on aircraft,and the results will be helpful for carrying out the next step in lightning protection work.关键词
飞行器/感应电磁场/表面电流/电磁耦合/线缆Key words
aircraft/induced electric and magnetic fields/surface current/electromagnetic coupling/cable分类
交通工程引用本文复制引用
李茜华,陈曦,刘贺楠,胡志军,彭勇,龙中权,郭俊..飞行器雷击瞬态电磁响应数值仿真[J].中国舰船研究,2018,13(2):140-148,9.
