航天器内部孤立导体表面带电面积效应研究

航天器内部孤立导体充放电对航天器的影响更为隐蔽, 造成直接和潜在的伤害更加严重. 综合考虑航天器内部环境中粒子参数及材料二次电子特性等因素, 基于气体动理论, 结合粒子的麦克斯韦速度分布函数, 得出孤立导体球充电电位一般表达式. 利用电位表达式推导得出孤立导体球净电荷量及静电场能量与导体面积关系表达式. 讨论了特殊情况下孤立导体静电场能量与面积及空间环境的关系, 与地面电子元器件电磁脉冲放电损伤值进行了对比, 总结出孤立导体表面带电面积效应规律.关键词：孤立导体表面带电静电场能量面积效应

Area effect of isolated conductor's surface charging inside spacecraft

The negative effect of spacecraft inside isolated conductor surface charging is more unobvious, causing more serious direct and potential harm. Considering the electrons and ions, the secondary electron emission, according to the kinetic theory of gases and combing the theory of particle in Maxwell velocity distribution function, calculate general expression in a plasma environment unbiased solid surface charging. Using the voltage general expression, we deduce the expression of energy and electric quantity, discuss the relationship between energy of isolated conductor's electrostatic field and surface as well as space environment in special environment, compare the energies of electrostatic field in different environments and different surfaces with electromagnetic pulse discharge damage of ground electronic components, and finally summarize the rules of area effect of isolated conductor's surface charging.
Keywords：isolated conductorsurface chargingenergy of electrostatic fieldarea effects