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Design and experiment of dual micro-vibration isolation system for optical satellite flywheel
S. B. Chen,M. Xuan,J. Xin,Y. Liu,S. Gu,J. Li and L. Zhang
2020
发表期刊International Journal of Mechanical Sciences
ISSN0020-7403
卷号179页码:10
摘要This paper builds a dual isolation system for suppressing the micro-vibration due to flywheel of optical satellite. The advantages of this system compared to the single-layer vibration isolation system are: 1) the layout of flywheels is more compact, which improves the utilization rate of structure; 2) the load path of the perturbation of flywheel is extended; 3) the attenuation rate of vibration in high frequency band is improved. The transmissibility of force is discussed and the decay time of precession associated with the flywheel gyroscopic effect is analyzed. The suitable cut-off frequencies of isolators are designed in consideration of the precession decay time and the first-order natural frequency of the satellite during launch process. The influence of flywheel micro-vibration on camera with and without isolation is compared by on-ground optical imaging test. The RMS of pixel offset attenuates obviously under dual isolation and the maximum attenuation rate reaches 69.0%. The pixel offset value under dual isolation is less than 0.1 pixels, indicating the feasibility of dual isolation system for flywheel.
DOI10.1016/j.ijmecsci.2020.105592
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收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/64401
专题中国科学院长春光学精密机械与物理研究所
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GB/T 7714
S. B. Chen,M. Xuan,J. Xin,Y. Liu,S. Gu,J. Li and L. Zhang. Design and experiment of dual micro-vibration isolation system for optical satellite flywheel[J]. International Journal of Mechanical Sciences,2020,179:10.
APA S. B. Chen,M. Xuan,J. Xin,Y. Liu,S. Gu,J. Li and L. Zhang.(2020).Design and experiment of dual micro-vibration isolation system for optical satellite flywheel.International Journal of Mechanical Sciences,179,10.
MLA S. B. Chen,M. Xuan,J. Xin,Y. Liu,S. Gu,J. Li and L. Zhang."Design and experiment of dual micro-vibration isolation system for optical satellite flywheel".International Journal of Mechanical Sciences 179(2020):10.
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