卫星介质深层充电电场时域差分计算方法研究

Study on Calculation Method of the Internal Charging Electric Field on Satellites Dielectric by Time Domain Differential

根据卫星介质深层充电的物理机制,分别对应介质板正面接地、背面接地和正面背面同时接地三种情况建立相应的介质板深层充电模型,研究了利用时域差分和数值积分方法求解卫星介质深层充电电场的算法,计算了在单能电子束流垂直入射作用下卫星内部介质板(Teflon)深层充电电场,计算结果表明,文章建立的数值计算方法能求解出介质深层充电电场,且计算结果能反映充电电场在介质板中的时空分布特征。

In this paper,we address the electric field calculation method of deep-dielectric charging on satellites planar dielectric.Based on the physical mechanisms,we build charging models for three grounded structures: grounded on the back plane only,grounded on the front plane only,and grounded on both front and back planes.We solve the partial differential equation of charging electric field using time domain differential method.Then,we compute the deep-dielectric charging electric field of satellite's dielectri...