摘要
为有效开展箭上系统强电磁脉冲防护,分析了火箭尾段的强电磁脉冲环境,利用时域有限差分法计算了尾段线缆在强电磁脉冲照射下的感应皮电流,研究了火箭尾段线缆不同长度、不同线缆布线高度以及入射场不同极化方向3种工况下线缆端点皮电流的变化规律,同时探讨了尾段线缆皮电流分布的波动性,为工程应用分析提供了有力支撑。
The electromagnetic pulse environment of launch vehicle is analyzed and the skin-current on cables is calculatedto carry out electromagnetic pulse protection,utilizing the method of finite difference time domain(FDTD).The change rules of cable's skin-current are researched on different length of cables,different polarization direction of electric field and different height of cables apart from the bottom of launch vehicle.The volatility of skin-current on cables are also explored.The research results provide strong and firm support for engineering.
作者
龙中权
赵民
付继伟
陈曦
梁浩
LONG Zhongquan;ZHAO Min;FU Jiwei;CHEN Xi;LIANG Hao(Beijing Institute of Astronautical Systems Engineering,Beijing,100076;China Academy of Launch Vehicle Technology,Beijing,100076)
关键词
火箭尾段
线缆
强电磁脉冲
表面电流
时域有限差分法
launch vehicle
cables
electromagnetic pulse
skin-current
finite difference time domain
