| 采用多作动器并联隔振平台的整星半主动隔振研究 |
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| 引用本文： | 刘丽坤,郑钢铁.采用多作动器并联隔振平台的整星半主动隔振研究[J].上海航天,2008,25(6). |
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| 作者姓名： | 刘丽坤 郑钢铁 |
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| 作者单位： | 清华大学,航天航空学院,北京,100084 |
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| 摘 要： | 对采用半主动多作动器并联隔振平台的整星隔振实现进行了研究.用牛顿欧拉法建立了由半主动隔振平台和柔性卫星构成的系统的动力学方程,根据主动悬空阻尼器原理设计了半主动隔振平台的控制丰.仿真分析表明:该平台能改善卫星的动力学环境,相对被动隔振平台而言,可克服衰减共振峰值与衰减高频段幅值问的矛盾.相对主动隔振平台而言,系统简单可靠、能量需求小,质量轻.
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| 关 键 词： | 整星隔振 半主动隔振 磁流变阻尼器 作动器 隔振平台 |
Study of Semi-Active Parallel Multi-Actuator Platform for Whole-Spacecraft Vibration Isolation |
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| LIU Li-kun,ZHENG Gang-tie.Study of Semi-Active Parallel Multi-Actuator Platform for Whole-Spacecraft Vibration Isolation[J].Aerospace Shanghai,2008,25(6). |
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| Authors: | LIU Li-kun ZHENG Gang-tie |
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| Institution: | LIU Li-kun,ZHENG Gang-tie(School of Astronautics , Aeronautics,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The implementation of whole-spacecraft vibration isolation for semi-active parallel multi-actuator vibration isolation platform was studied in this paper.The dynamic equation of the system composed by the semi-active platform and a flexible satellite was built by Newton-Euler method.The control law of the semi-active platform was schemed refer to the active sky-hoop damper.The simulation results showed that the dynamic environment would be improved by this semi-platform,which could eliminate the trade-off b... |
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| Keywords: | Whole-spacecraft vibration isolation Passive vibration isolation Vibration attenuation Actuator Vibration isolation platform |
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