高技术通讯2011，Vol.21Issue(7)：750-755,6.DOI:10.3772/j.issn.1002-0470.2011.07.014
柔性周边桁架可展开天线展开过程动力学分析和组合控制方法
Dynamic analysis and combined control of the deployment of flexible hoop truss deployable space antennas
摘要
Abstract
A combined control method is presented for deployment control of flexible hoop truss deployable space antennas. Based on the Lagrange method and the consideration of the elasticity potential energy of flexible bodies, a flexible multi-body dynamics model for hoop truss deployable antennas is established. By efficient use of the kinematics and dynamics model information, the motion feedback is decoupled to two parts: the rigid motion and the vibration caused by flexible behaviors. Two controller are designed individually for the two corresponding feedbacks. The rigid controller guarantees the antenna to deploy precisely and the flexible controller restrains the flexible vibration. Tne validity and stability of the control method were verified by numerical simulations. The results show the antennas can calmly deploy with a specified motion.关键词
可展开天线/柔性多体动力学/展开过程/组合控制/解耦Key words
deployable antenna/flexible multi-body dynamics/deployment/combined control/decouple引用本文复制引用
张逸群,张志华..柔性周边桁架可展开天线展开过程动力学分析和组合控制方法[J].高技术通讯,2011,21(7):750-755,6.基金项目
国家自然科学基金(50475171)资助项目. （50475171）
