摘要
为了研究地面试验环境下实现航天器捕获失控翻滚目标运动再现的姿轨控制问题,首先,建立了适用于实验验证的六自由度姿轨联合相似模型,可满足实验场地大小、机构速度和运行时间等约束;其次,基于多项式函数设计了有限时间收敛且动态性能良好的绕飞逼近参考轨迹,并利用反步法给出了姿轨联合控制律,证明了相似闭环系统的稳定性。通过仿真算例说明了基于运动再现的姿轨控制方法是有效的。
This paper deals with the attitude and orbit control problem for motion reconstruction of spacecrafts flying around and approaching the tumbling target during ground experiments. Firstly, a 6-DOF similarity model is estab- lished to describe the integrated attitude and orbit motion, which is suitable for the experimental verification with the practical constraints on the space size, running velocity and time involved. Secondly, the polynomial approach is used to design the motion reference trajectory that can ensure finite-time convergence and good dynamic perform- ances, based on which, an integrated attitude and orbit control law is proposed by the back-stepping method and the corresponding closed-loop stability is proved. Finally, a numerical example is included to illustrate the effective- ness of the obtained results.
作者
孙施浩
贾英民
SUN Shihao JIA Yingmin(The Seventh Research Division, Beihang University, Beijing 100191, China)
出处
《智能系统学报》
CSCD
北大核心
2016年第6期818-826,共9页
CAAI Transactions on Intelligent Systems
基金
国家"973"计划项目(2012CB821200
2012CB821201)
国家自然科学基金项目(61134005
61327807
61520106010)
关键词
运动再现
相似理论
绕飞
翻滚
姿轨控制
航天器
motion reconstruction
similarity
flying around
tumbling
attitude and orbit control
spacecrafts
