充液航天器姿态控制研究进展

A review of the attitude control methods of liquid-filled spacecraft

首先介绍了充液航天器刚-液耦合动力学建模的研究现状,以及目前被广泛使用的等效晃动力学模型的建模方法;其次针对不同执行器的选取,总结分析了基于李亚普诺夫稳定性原理、滑模控制、自适应反馈控制等充液航天器抑制液体燃料晃动、控制姿态的方案;最后,对目前国内充液航天器姿态控制问题进行了总结,并展望了充液航天器未来的研究方向。

The purpose of this paper is to present a comprehensive review of the recent development and research on the attitude control methods of spacecrafts with fuel slosh dynamics. The mathematical modeling methods in building the dynamical model of liquid-filled spacecraft are first reviewed and the widelyused modeling approach using mechanical equivalent principle was introduced. Then,different attitude control strategies are presented and compared,including Lyapunov-based nonlinear feedback control,sliding mode control and adaptive feedback control,etc. Finally,the existing problems and challenges on the attitude control of liquid-filled spacecrafts are summarized and promising new research directions are discussed.