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首页> 外文期刊>Journal of Sound and Vibration >Attitude control and sloshing suppression for liquid-filled spacecraft in the presence of sinusoidal disturbance
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Attitude control and sloshing suppression for liquid-filled spacecraft in the presence of sinusoidal disturbance

机译：正弦波扰动下充液航天器的姿态控制和晃动抑制

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The attitude regulation for a liquid-filled spacecraft in the presence of low frequency sinusoidal disturbance is considered in this paper. The liquid-filled spacecraft is modelled as a rigid body attached with a simple pendulum. A novel control scheme is proposed, which is composed of Active Disturbance Rejection Control (ADRC), Positive Position Feedback (PPF), Extended State Observer (ESO) and Singular Spectrum Analysis (SSA). The unknown sloshing mode could be estimated from the combined ESO and SSA, and accordingly ADRC and PPF controller is designed for the stabilization of the spacecraft. Particularly, the parameters of the disturbance are not required as long as its frequency is lower than the sloshing one. The proposed approach could provide stabilization for the spacecraft, rejection for the disturbance,and active damping for the sloshing. Its effectiveness is validated by numerical simulations. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文考虑了存在低频正弦波扰动的充液航天器的姿态调节。充满液体的航天器被建模为带有简单摆锤的刚体。提出了一种新颖的控制方案，该方案由主动干扰抑制控制（ADRC），正位置反馈（PPF），扩展状态观测器（ESO）和奇异频谱分析（SSA）组成。可以根据ESO和SSA的组合来估算未知的晃荡模式，因此需要设计ADRC和PPF控制器来稳定航天器。特别地，只要扰动的频率低于晃动的频率，就不需要扰动的参数。所提出的方法可以为航天器提供稳定性，为干扰提供抑制，并为晃动提供主动阻尼。通过数值模拟验证了其有效性。 （C）2016 Elsevier Ltd.保留所有权利。

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