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浙江大学学报(工学版)  2017, Vol. 51 Issue (7): 1421-1427    DOI: 10.3785/j.issn.1008-973X.2017.07.021
航空航天技术     
空间四星绳系闭合系统自旋平衡构型保持控制
上海交通大学 航空航天学院, 上海 200240
Spin equilibrium configurations keeping control of four-body closed tether system
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摘要:

针对空间四星绳系闭合系统自旋平衡构型的不稳定特性,建立四星绳系闭合系统动力学模型并设计构型保持控制器,使系统始终处于稳定自旋状态.提出以Golay-3分布的空间四星绳系闭合系统,分析该系统的动力学特性,利用拉格朗日方程推导动力学模型的数学形式.根据动力学方程得出自旋平衡构型,分析表明,系统自旋时在系绳拉力作用下构型平面内的运动具有稳定性,构型平面指向会发散.推导构型平面指向的非线性调节器方程,考虑到研究对象受外界干扰的不确定性,为了增强系统的鲁棒性,设计基于符号函数和基于饱和函数的滑模变结构控制器.仿真表明,两种控制器都具有较强的鲁棒性,可以保持四星闭合系统自旋构型,采用基于饱和函数的软变结构策略可以明显地减少控制系统抖振.

收稿日期: 2016-05-02 出版日期: 2017-07-08
CLC:  null  
通讯作者: 龚德仁,男,副研究员.ORCID∶0000-0001-7640-6419.     E-mail: drgong@sjtu.edu.cn
作者简介: 叶国宇(1991—),男,硕士生,从事多星编队飞行协同与控制的研究.ORCID∶0000-0002-6115-3655.E-mail:eagy_sjtu@sjtu.edu.cn
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引用本文:

叶国宇, 龚德仁, 蔡慧敏, 段登平. 空间四星绳系闭合系统自旋平衡构型保持控制[J]. 浙江大学学报(工学版), 2017, 51(7): 1421-1427.

YE Guo-yu, GONG De-ren, CAI Hui-min, DUAN Deng-ping. Spin equilibrium configurations keeping control of four-body closed tether system. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(7): 1421-1427.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2017.07.021        http://www.zjujournals.com/eng/CN/Y2017/V51/I7/1421

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