Attitude stabilization of a flexible spacecraft under actuator complete failure

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• 作者：Dong Zhao ; Hao Yang ; ^{haoyang@nuaa.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Bin Jiang ; Liyan Wen
• 关键词：Flexible spacecraft ; Attitude and angular velocity stabilization ; Actuator complete failure ; Model simplification ; Fault-tolerant control
• 刊名：Acta Astronautica
• 出版年：2016
• 出版时间：June-July 2016
• 年：2016
• 卷：123
• 期：Complete
• 页码：129-136
• 全文大小：724 K

文摘

This paper considers the attitude and angular velocity stabilization problem of a class of flexible spacecraft under actuator complete failure. Firstly a new model simplification strategy is put forward to weaken the coupling effects. Then an adaptive observer-based estimation method is proposed to estimate the uncertainty of flexibility, based on which a feedback fault-tolerant control scheme is further developed which guarantees the system stability and asymptotic attitude converging properties. The simulation results illustrate the efficiency of the theoretical results.