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首页> 外文期刊>Mechatronics, IEEE/ASME Transactions on >Top Tension Control of a Flexible Marine Riser by Using Integral-Barrier Lyapunov Function
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Top Tension Control of a Flexible Marine Riser by Using Integral-Barrier Lyapunov Function

机译:使用积分屏障李雅普诺夫函数的挠性船用立管的最高张力控制

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摘要

This paper presents a boundary controller for a flexible marine riser to suppress the riser’s vibration with a top tension constraint. The flexible marine riser is described by a distributed parameter system with a partial differential equation and four ordinary differential equations. The boundary controller is designed at the top boundary of the riser based on an integral-barrier Lyapunov function to suppress the riser’s tension at top. Adaptive control is designed when the system parametric uncertainty exists. With the proposed robust adaptive boundary control, uniformed boundedness under the ocean disturbance can be achieved. Stability analysis of the closed-loop system is given using the Lyapunov stability theory. Simulation results illustrate the effectiveness of the proposed boundary controller with top tension constraint.
机译:本文提出了一种用于船用柔性立管的边界控制器,该控制器可在最大拉力约束下抑制立管的振动。柔性船用立管由具有偏微分方程和四个常微分方程的分布式参数系统描述。边界控制器基于积分屏障Lyapunov函数设计在立管的顶部边界,以抑制立管的顶部张力。当系统参数不确定性存在时,设计自适应控制。利用所提出的鲁棒自适应边界控制,可以实现海洋扰动下的均匀有界度。使用Lyapunov稳定性理论给出了闭环系统的稳定性分析。仿真结果表明了所提出的边界控制器具有最高张力约束的有效性。

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