纳卫星轨道热环境仿真分析

轨道热环境分析对于纳卫星热控系统的设计与仿真研究具有重要意义。针对进行纳卫星轨道热环境分析的关键问题,通过详细的数学分析,建立起计算简单、便于应用的纳卫星本体质心坐标系内的太阳向量、地球向量的仿真计算模型,以及外热流分析所必需的其它时变空间几何参数的计算方法,满足了纳卫星热控系统的在轨仿真计算中快速、简便的进行太阳辐照、地球辐照、地球反照等外热流计算的客观需要,进而应用上述模型和方法对一椭圆轨道近地空间探测纳米卫星的轨道热环境进行了仿真计算,并对其结果进行了详细的分析与讨论。

Simulating Analysis of Nano-satellite''''s Orbital Thermal Environment

The analysis of orbital thermal environment is very important for nano-satellite's thermal control system design.A set of convenient equations and algorithms for the calculations of the variable space parameters such like of sun vector and earth vector were described,which were necessary for the analysis of nano satellite's external heat flows including sun radiation,earth emission and earth reflection.These equations and algorithms could simplify the analysis of nano-satellite's orbital thermal environment.As an example,the orbital thermal environment simulation of an ellipse-orbit space discovering nano-satellite was introduced.The results of the simulation were analyzed.