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Vortex-induced vibrations and control of marine risers: A review

机译：涡旋振动和海洋立管的控制：综述

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This paper reviews the dynamics and vibration control techniques for marine riser systems. The riser pipes are modeled as Euler-Bernoulli beams that vibrate under the effects of ocean loads and the movements of the surface vessel, resulting in hybrid ODE-PDE equations. Chronological development of such hybrid models is first discussed, and their approximated ODE models for simulation are examined. Theoretical and experimental techniques for instability and fatigue analyses on the riser systems are also summarized. To increase the fatigue life against ocean currents, passive vibration suppression devices (e.g., strakes and spoilers) were mounted on the surface of the riser. Whereas to tackle the instability problem caused by sea waves, active control techniques utilizing the movements of the vessel were employed. In Conclusions, as future riser technologies, seven research issues are identified.
机译：本文回顾了船用立管系统的动力学和振动控制技术。立管建模为Euler-Bernoulli梁，该梁在海洋载荷和水面船只运动的影响下发生振动，从而产生混合ODE-PDE方程。首先讨论了这种混合模型的时间发展，并检查了它们的近似ODE模型以进行仿真。还总结了立管系统的不稳定性和疲劳分析的理论和实验技术。为了增加抵抗海流的疲劳寿命，在立管的表面上安装了无源振动抑制装置（例如，条板和扰流板）。为了解决由海浪引起的不稳定问题，采用了利用船舶运动的主动控制技术。结论中，作为未来的冒口技术，确定了七个研究问题。

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