| 分布参数柔性航天器的变结构控制 |
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| 引用本文： | 陈涛,胡超,黄文虎.分布参数柔性航天器的变结构控制[J].工程力学,2008,25(5):222-226. |
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| 作者姓名： | 陈涛 胡超 黄文虎 |
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| 作者单位： | 1. 哈尔滨工业大学航天学院,黑龙江,哈尔滨,150001
2. 哈尔滨工业大学航天学院,黑龙江,哈尔滨,150001;同济大学航空航天与力学学院,上海,200092 |
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| 基金项目： | 国家自然科学基金
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黑龙江省杰出青年科学基金 |
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| 摘 要： | 该文基于Hamilton变分原理,采用Timoshenko梁理论,对带有柔性附件的航天器建立了中心刚体-柔性梁动力学模型。利用对柔性梁端部边界限制所设计的控制器,实现了系统的渐近稳定设计。该文给出了数值仿真结果,并分析讨论了航天器刚体角位移及柔性梁末端挠度的动力学变化规律。该文可为柔性航天器的动力学控制提供鲁棒性强的变结构控制方法。
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| 关 键 词： | 柔性航天器 变结构控制 中心刚体-梁模型 边界控制 Timoshenko梁理论 |
| 文章编号： | 1000-4750(2008)05-0222-05 |
| 修稿时间： | 2006年10月19 |
VARIABLE STRUCTURE CONTROL OF A FLEXIBLE SPACECRAFT OF DISTRJBUTE PARAMETERS |
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| CHEN Tao,HU Chao,HUANG Wen-hu.VARIABLE STRUCTURE CONTROL OF A FLEXIBLE SPACECRAFT OF DISTRJBUTE PARAMETERS[J].Engineering Mechanics,2008,25(5):222-226. |
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| Authors: | CHEN Tao HU Chao HUANG Wen-hu |
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| Abstract: | Based on Hamilton’s principle, the dynamic model of flexible spacecraft consisting of a rigid central body and a flexible beam, is derived by Timoshenko beam theory. Then dynamical modeling and control of the flexible spacecraft during attitude maneuver are investigated. Controller is designed by controlling boundary conditions of tip of Timoshenko beam. The proposed controller can stabilize the system exponentially. The simulation is presented. Variable rules of angular displacement of hub and tip trajectory of flexible beam are discussed. Highly robust variable structure controler to control flexible spacecraft is thusly given. |
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| Keywords: | flexible spacecraft variable structure control flexible hub-beam model boundary control theory of Timoshenko beam |
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