摘要
本文研究地磁场对中低轨道航天器表面充电现象的影响．根据航天飞行器带电机制，选用粒子模型，在粒子轨道跟踪的基础上，建立了时间依赖的粒子推进的计算模型，计算了飞行器表面充电的平衡电位，计算结果与观测吻合．
This paper discusses surface charging on a spacecraft in a low orbit by means of the numerical solution. Accoording to the charging mechanism, a “particle pushing” pattern is set up based on the orbit tracing theory. Calculation is performed on the charging on a low orbit spacecraft, as well as the effect of earth's magnetic field.
基金
国家自然科学基金
关键词
航天器
表面充电
数值模拟
地磁场效应
充电
spacecraft surface charging, numerical simulation, particle push ing, earth magnetic field
