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Fault Modeling and Estimation for CMG
2018 IEEE CSAA Guidance, Navigation and Control Conference (CGNCC), 2018Momentum exchange devices like reaction wheel (RW) and control moment gyro (CMG) are always used as actuators in spacecraft attitude control systems. However, the unexpected faults in these momentum exchange devices may result in mission failures or even the spacecraft breakup. To enhance the reliability and safety of the attitude control systems, this
Qiang Shen, Xiang Yu, Chengfei Yue
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Design of a CMG for underwater robots
OCEANS 2011 IEEE - Spain, 2011In this paper we present a Control Moment Gyroscope (CMG) for underwater robots. This is a single gimbal CMG with pyramid type configuration. This device has a modular design and is self-contained (i.e., all mechanical and electrical parts are contained in the CMG's hull.) The mechanical, electrical and electronic components of the CMG are described ...
Yime E. +3 more
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Polar Record, 2006
John Heap's whole working career was one devoted to the polar regions, primarily the Antarctic — as scientist, then as a distinguished, internationally respected polar diplomat, and finally to holding the Directorship of the Scott Polar Research Institute in Cambridge (Fig. 1).
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John Heap's whole working career was one devoted to the polar regions, primarily the Antarctic — as scientist, then as a distinguished, internationally respected polar diplomat, and finally to holding the Directorship of the Scott Polar Research Institute in Cambridge (Fig. 1).
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The Imbalance Compensation in CMG
Journal of the Korean Society for Aeronautical & Space Sciences, 2020Jong-Kuk Lee +9 more
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Precision CMG Control for High-Accuracy Pointing
Journal of Spacecraft and Rockets, 1973Extremely precise gimbal control, as is necessary for CMG (Control Moment Gyro) high-accuracy-pointing control systems, is obtainable and has been demonstrated for large single-gimbal CMGs. A proportional-plusintegral control law, where the integral gain is substantially greater than the gradient of the gimbal "stiction" profile, makes possible wide ...
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Proceedings of the National Academy of Sciences of the United States of America, 2022
Nina Y Yao +2 more
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Nina Y Yao +2 more
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CDT1 inhibits CMG helicase in early S phase to separate origin licensing from DNA synthesis
Molecular Cell, 2023Nalin Ratnayeke +2 more
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THE CMG SIXTH COMPUTER OLYMPIAD
ICGA Journal, 2001van den Herik, H.J., Hellemons, J.W.
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Cryo-EM Structure of the Fork Protection Complex Bound to CMG at a Replication Fork
Molecular Cell, 2020Domagoj Baretić +2 more
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DONSON is required for CMG helicase assembly in the mammalian cell cycle
EMBO Reports, 2023Cecile Evrin +2 more
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