卫星内部三维屏蔽计算模型

研究中构建了一些常用设备的形状模式,用来计算从不同位置、不同方向入射的粒子在设备中运行的径迹长度；另外构建了各种常见形态的卫星整体模式,可以计算不同位置上卫星舱壁和结构件所产生的屏蔽作用。这些模式构成了一个较为完整的模块,可以计算由卫星舱壁和仪器设备相互屏蔽所形成的屏蔽效果。已经利用这一软件计算了某卫星舱内某仪器内部关键元件的屏蔽情况,计算中涉及到了复杂的卫星舱壁、分布在不同位置的其他仪器、仪器盒、仪器内部的线路板等,取得了较好的效果。

A SHIELDING DISTRIBUTION ANALYSIS MODEL FOR A SPACECRAFT

Some simple models of the instruments are constructed according to their shape and the outside shield as well. The instruments could be positioned as the guildline of the design of the spacecraft.The spatial distribution of coating thickness for a chosen position could be derived with ray-tracing technology,which simulated the particle coming in from various directions.The true length that the ray traveled in the material would be the shielding thickness in this direction.By scanning the full space we could obtain the 3D distribution of the shielding thickness.This is a simple way to estimate the protection of some important components.The model is easy to apply and has been used in investigating the shielding for several key components onboard TC-1 satellite.