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1 概要ETS-Ⅷ是日本宇宙开发事业团(NASDA)研制的一颗大型三轴稳定卫星,星上载有大型展开式天线等飞行任务仪器,姿态控制时,柔性结构的振动和干扰对控制精度的影响非常大。另外,从圆满完成飞行任务的角度考虑,必须在确保卫星姿态稳定性的同时保持较高的控制精度,为满足这两项要求,在设计上必须解决这两个问题,也
1 Outline ETS-VIII is a large three-axis stable satellite developed by Japan’s Space Development Agency (NASDA). It contains mission instruments such as large deployable antennas. When attitude control is performed, the vibration and interference of flexible structures are of great importance to control precision Very influential. In addition, from the perspective of successful completion of the flight mission, satellite attitude stability must be maintained while maintaining a high degree of control precision. To meet these two requirements, both of these problems must be solved in design and