【摘要】 为了保证成像质量,隔离星上控制力矩陀螺群对高精度有效载荷的微振动干扰,高分多模卫星首次采用了"并联隔振装置"承载隔振一体化系统。并联隔振装置通过整星隔振和结构一体化设计,实现对控制力矩陀螺群的承载支撑和在轨微振动隔离,通过高精度微振动隔振器设计和制造方法,实现整星系统频率和阻尼动力学特性的精确匹配。地面力学试验、微振动试验和在轨测试等结果表明:并联隔振装置具备良好的发射段减振和在轨隔离微振动能力,保证了控制力矩陀螺群在发射时的力学环境安全性和在轨时的微振动隔离效率。更多还原

【Abstract】 Parallel micro-vibration isolation system(PMIS) is first applied to GFDM-1 satellite, to isolate the micro-vibration disturbance generated by the control moment gyroscopes(CMGs) during its normal operation. The system is capable of not only isolating the vibration from propagating into satellites but also reducing the launch loads transmitted to CMGs by integrated structural design method. A novel micro-vibration isolator is developed to achieve precise control of stiffness and damping characteristics for the isolation system. The ground launch vibration, micro-vibration test and on-orbit application dates indicate that the isolation system guarantees the dynamic safety of CMGs under the launch environment and the micro-vibration isolation efficiency of CMGs on orbit.更多还原