某卫星挠性附件姿态动力学研究

Research on Attitude Dynamics of Some Satellite with Flexible Appendages

根据导出的某有大型太阳帆板的挠性卫星数学模型,分析了模型中挠性振动对质心和姿态运动的影响,给出了卫星系统的动力学方程,并对帆板展开、卫星稳态运行的模型作工程化处理。分析和仿真结果表明:该方法能降低模型的复杂度,满足大型卫星的姿态指向精度和稳定度要求。

According to the derived mathematical model of some flexible satellite with large solar panels, the effects of the flexible vibration on the movement of the centre of mass and attitude were analyzed in this paper. The dynamic equations of the satellite system were given out, and the model was simplified in engineering when the panels were deployed and the satellite was operated in stable state. The analysis and simulation results showed that this engineering method would reduce the complexity of the model, which could satisfy the pointing precision and stability of the large satellite.