航天器静电放电仿真研究  

Simulation research of the spacecraft electrostatic discharge

作　　者：顾超超[1] 陈晓宁[1] 林楚[1] Gu Chaochao Chen Xiaoning Lin Chu(Institute of National Defense Engineering, PLA University of Science and Technology, Nanjing 210007, China)

机构地区：[1]解放军理工大学国防工程学院,江苏南京210007

出　　处：《微型机与应用》2017年第9期95-99,共5页Microcomputer & Its Applications

摘　　要：静电放电(ESD)对航天器安全运行产生巨大影响,为进一步研究静电放电对航天器的危害,提高航天器对静电放电的防护能力,根据MIL-STD-1541A规定的静电放电模型,在基于传输线矩阵法的CST Microwave Studio工作室中,对航天器进行了静电放电效应的仿真研究。分析了在航天器不同部位产生静电放电时空间电磁场的分布、航天器内外表面电流的分布及内部不同舱室线缆耦合情况。仿真结果表明:曲率半径小的部位空间电磁场较高;采用复合材料的航天器表面电流较高;动力舱内线缆耦合电流较大是由于电磁场经尾喷口进入机体。Electrostatic discharge （ESD） has great influence on the spacecraft safe operation. In order to furtlie r research on the hazards of e-lectrostatic discharge on the spacecraft and improve the protection ability of the spacecraft to electrostatic of MIL - STD-1541A electrostatic discharge model,this paper builds a simulation of electrostatic dischwave Studio based on the transmission-line matrix methiod. When the electrostatic discharge occu rs, the distr ib ution of electromagnetic field , the internal and external surface current and the cable coupling of different compartments at different parts of the spacecraft are analyzed. The simulation results showthat the electromagnetic field is higher in small curvature radius positions than other posit io ns,the surface current of thespacecraft is higher by using the composite material and the cable coupling current in power cabin is larger than othier cabins due to the electro-magnetic field through the tail nozzle into the body.

关 键 词：静电放电 传输线矩阵法 空间电磁场 表面电流 线缆耦合 

分 类 号：TM155[电气工程—电工理论与新技术]