摘要
为了研究航天器多层外表面的充放电特性及影响因素,利用空间材料表面带电地面模拟系统进行地球同步轨道航天器多层外表面充放电模拟试验,通过电子辐照多层介质材料,模拟地球同步轨道复杂的空间带电环境,使聚酰亚胺和聚四氟乙烯多层组合材料在受到高能带电粒子辐照后带电,然后测量其表面电位的变化,分析其充放电特性。结果表明:与单层介质材料相比,多层介质材料更容易产生静电放电,其充放电特性与电子能量、材料接触面积等因素相关。
In order to study the charging and discharging characteristics and influence factor of spacecraft multilayer external surface, charging and discharging simulation experiments were conducted on the multilayer external surface of spacecraft in the geosynchronous orbit(GEO) using the space material surface charged ground simulation system. The multilayer dielectric materials were irradiated by electron to simulate the complex space charged environment in the GEO, and the multilayer dielectric material consisted of polyimide and PTFE was charged by high-energy charged particles, then their surface potential was measured to analyze the charging and discharging characteristics of the material. The results show that the multilayer dielectric materials are easier to produce electrostatic discharge compaed with single-layer dielectric materials, and their charging and discharging characteristics are related to electronic energy and the contact area of materials.
作者
范亚杰
张希军
胡小锋
代银松
FAN Yajie;ZHANG Xijun;HU Xiaofeng;DAI Yinsong(National Key Lab on Electromagnetic Environment Effect,Shijiazhuang Campus of Army Engineering University,Shijiazhuang 050003,China)
出处
《绝缘材料》
CAS
北大核心
2019年第1期42-46,共5页
Insulating Materials
基金
装备预研基金项目重点实验室基金(61422050102162205001)
装备预研领域基金项目(61402090201)
关键词
航天器
多层介质材料
带电粒子辐照
静电放电
聚酰亚胺
聚四氟乙烯
spacecraft
multilayer dielectric materials
charged particle irradiation
electrostatic discharge
PI
PTFE
