耦合内流动力学的海洋柔性立管振动控制

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摘要针对耦合时变内流和洋流动力学的海洋柔性立管系统，为有效抑制其振动和避免控制溢出问题，基于立管原始无限维模型，本文将边界控制技术与高增益观测器相结合，设计了边界控制器对立管振动进行主动控制，通过严格的数学分析，验证了控制作用下立管系统的稳定性和闭环系统状态的一致有界性。仿真结果验证了本文所设计边界控制算法对立管振动抑制的有效性。

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	郭芳1
	刘屿1
	赵志甲1
	罗飞1
	邬依林2

关键词 ：海洋立管, 边界控制, Lyapunov理论, 高增益观测器

Abstract：To suppress the riser's vibration and avoid control spillover, based on the original infinite-dimensional model of the flexible marine riser coupled with time-varying internal fluid and ocean current dynamics, a boundary control is developed for vibration reduction by applying boundary control technique and high-gain observers. The stability of the control system and uniform boundedness of the closed-loop signals are strictly demonstrated by using Lyapunov theory. The effectiveness of the proposed boundary control scheme are illustrated by simulation results．

Key words： marine risers boundary control Lyapunov theory high-gain observer

收稿日期: 2016-03-30 出版日期: 2017-10-28

引用本文:

郭芳1，刘屿1，赵志甲1，罗飞1，邬依林2. 耦合内流动力学的海洋柔性立管振动控制[J]. 振动与冲击, 2017, 36(21): 157-162.
GUO Fang1, LIU Yu1, ZHAO Zhi-jia1, LUO Fei1, WU Yi-lin2. Vibration control of a flexible marine riser coupled with the internal fluid dynamics. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(21): 157-162.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2017/V36/I21/157

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