航天器空间环境干扰力矩分析与仿真研究

The Analysis and Simulation of Aircraft Space Environment Disturbance Torque

针对航天器在轨运行时所受到的空间环境干扰力矩进行建模分析,并通过实时解算和矢量叠加的方式进行仿真研究,尤其对太阳光压力矩与大气阻力力矩的建模与仿真提出了新的方法,该方法通过建立光照面与迎风面的判断准则,准确地对太阳光压力矩与大气阻力力矩进行了估计。对各种空间环境干扰力矩的精确建模与仿真为航天器精确姿态控制设计及系统姿态控制方案和控制执行机构的选取提供了依据,文中提出的方法简单易用,工程实现性强,为未来的工程应用提供了一定的理论依据。

The modeling and simulation of space environment disturbance torque are analyzed while air- craft is running on orbit. For the first time, it synthetizes computation and simulation of various disturbance torques. A new method is provided for sun pressure and atmosphere resistance modeling and simulation. By building judging criterion for illumination face and windward face, the two kinds of torque are exactly esti- mated by using this method. The accurate model and simulation are provided as the basis for aircraft atti- tude control scheme and the selection of control scheme and actuator. The method used in the paper is simple and practical and it provide theory base for engineering application in the future.