Vibration Control of Marine Flexible Riser with Uncertain Model

Authors

  • Miaomiao Chen
  • Ruihan Zhang
  • Li Zhou
  • Shuyu Xiao
  • Xu Zheng
  • Xueyi Wu

DOI:

https://doi.org/10.54097/ajst.v7i2.12264

Keywords:

Model uncertain, Marine flexible riser, Variable universe fuzzy control, vibration Control, Boundary control.

Abstract

 When flexible risers in the ocean are subjected to various environmental loads in the ocean, vibration will inevitably occur. Due to the nonlinearity and uncertainty of the actual riser system, it is impossible to obtain an accurate mathematical model of the riser system. The existing control algorithms designed based on the precise model of the riser system cannot meet the actual control requirements. A flexible riser boundary control method based on fuzzy control algorithm is proposed to suppress the vibration of marine flexible riser systems with uncertain models. Firstly, the dynamic models of existing marine flexible risers were studied. In response to the uncertainty of the riser system model, the control experience was transformed into an automatic control strategy in the form of fuzzy language control rules to improve the adaptability of the controller. Then, combining boundary control technology with fuzzy control, a boundary controller is constructed to stabilize the riser in a small neighborhood of its original position and reduce fatigue damage to the riser. Finally, the effectiveness of the designed fuzzy boundary control algorithm was verified through MATLAB simulation results, and the vibration suppression effect of the algorithm on the vertical tube was better than that of traditional PD control.

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References

Peng J H, Zhu B S, Zong Z. A numerical simulation model for the vortex induced vibration of flexible risers using dynamic stifness matrices [J]. Ocean Engineering, 2019, 178:306-320.

Liu J, Guo X Q, Wang G R, et al. Bi-nonlinear vibration model of tubing string in oil & gas well and its experimental verifification [J]. Applied Mathematical Modelling, 2020, 81:50-69.

MA B, SRINIL N. Planar dynamics of inclined curved flexible riser carrying slug liquid–gas flows [J]. Journal of Fluids and Structures, 2020, 94:102911-.

HE W, GE S S, HOW B, et al. Robust adaptive boundary control of a flexible marine riser with vessel dynamics [J]. Automatica, 2011, 47(4):722-732.

JIN F F, GUO B Z. Lyapunov approach to output feedback stabilization for the Euler–Bernoulli beam equation with boundary input disturbance [J]. AutomaticaM 2015, 52:95-102.

LIU Y , Zhang Q Y , FU Y . Vibration suppression of a flexible riser by boundary iterative learning control [J]. IEEE Access, 2019, 7:130262-130269.

ZHAO Z J, HE X Y, WEN G L. Boundary robust adaptive anti-saturation control of vibrating flexible riser systems [J]. Ocean Engineering, 2019, 179:298-306.

HE W, CHEN Sun, SHUZHI Sam. Top Tension Control of a Flexible Marine Riser by Using Integral-Barrier Lyapunov Function [J]. IEEE/ASME transactions on mechatronics, 2015, 20(2):497-505.

Guo F, Liu Y, Luo F. Adaptive stabilisation of a flexible riser by using the Lyapunov-based barrier backstepping technique [J]. Control Theory & Applications, 2017, 11(14):2252-2260.

Guo F, Liu Y, Luo F, et al. Observer-based backstepping boundary control for a flexible riser system [J]. Mechanical Systems & Signal Processing, 2018, 111: 314-330.

Zhao Z, He X, Wen G. Boundary robust adaptive anti-saturation control of vibrating flexible riser systems [J]. Ocean Engineering, 2019, 179:298-306.

Liu Y, Zhang Q Y, Fu Y. Vibration Suppression of a Flexible Riser by Boundary Iterative Learning Control [J]. IEEE Access, 2019, 7: 130262-130269.

Yang C, Du J B, Cheng Z B, et al. Flexibility investigation of a marine riser system based on an accurate and efficient modelling and flexible multibody dynamics [J]. Ocean Engineering, 2020, 207:107407

Zhao Z J, Ahn C K, Wen G L. Cooperative disturbance rejection control of vibrating flexible riser systems [J]. Nonlinear Dynamics, 2020, 99:1779.

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Published

27-09-2023

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Section

Articles

How to Cite

Vibration Control of Marine Flexible Riser with Uncertain Model. (2023). Academic Journal of Science and Technology, 7(2), 174-177. https://doi.org/10.54097/ajst.v7i2.12264

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