电磁轨道炮发射过程中系统瞬态磁场辐射特性研究  

Analysis of System Transient Magnetic Field Radiative Characteristics During Electromagnetic Railgun Launch

作　　者：张博[1] 孟祥欣[1] 王琨[1] 韩涛 ZHANG Bo;MENG Xiangxin;WANG Kun;HAN Tao(Northwest Institute of Mechanical&Electrical Engineering,Xianyang 712099,Shaanxi,China)

机构地区：[1]西北机电工程研究所,陕西咸阳712099

出　　处：《火炮发射与控制学报》2022年第4期33-37,共5页Journal of Gun Launch & Control

摘　　要：主要针对电磁轨道炮发射过程中百千安级脉冲大电流引起的瞬态强磁场的对外辐射特性进行研究,基于CST软件建立了电磁轨道炮发射系统准静态磁场特性分析模型,研究了电磁轨道炮发射过程中探针位置与瞬态磁通密度辐射的影响规律及频率特性,线缆对外辐射的磁通密度略大于汇流排对外辐射的磁通密度。基于RE101要求,改进频谱仪和环天线测试系统实现瞬态磁场频域测试,获取了发射系统周围的磁通密度,实测数据与仿真数据趋势一致、吻合较好,主要磁场辐射均集中在1 kHz以下,仿真和实测方法均可为电磁轨道炮系统的电磁兼容性设计提供参考,有助于电磁轨道炮系统合理布局。In this paper,the radiative characteristics caused by a strong transient magnetic field produced by a high pulse current of 100 kA during the launching process of an electromagnetic railgun are studied.The quasi-static magnetic field characteristic analysis model of the electromagnetic railgun launch system is established based on the CST software.The influence law and frequency characteristics of probe position and transient magnetic flux density radiation during the launch of the electromagnetic railgun are studied.The flux density of radiation from the cables is slightly greater than that from the bus.Based on the requirements of RE101,the spectrometer and ring antenna test system are improved to realize the frequency domain test of the transient magnetic field,and the magnetic flux density around the launch system is obtained.The trend of the measured data is consistent with that of the simulation data,and the main magnetic field radiation is concentrated below 1 kHz.The simulation and measured methods can provide a reference to the EMC design of electromagnetic railgun systems.It is helpful for the better layout of electromagnetic railgun systems.

关 键 词：电磁轨道炮 瞬态磁场 辐射测量 频域 

分 类 号：TJ399[兵器科学与技术—火炮、自动武器与弹药工程]