Event-triggered<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si23.svg"><mml:msub><mml:mi>H</mml:mi><mml:mi>∞</mml:mi></mml:msub></mml:math>control for networked spar-type floating production platforms with active tuned heave plate mechanisms and deception attacks

Zhang, Baolin; Cao, En-Zhi; Cai, Zhihui; Su, Hao; Tang, Gong‐You

doi:10.1016/j.jfranklin.2021.02.035

Cited by 9 publications

(1 citation statement)

References 42 publications

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“…To suppress the vibration and guarantee the safety of the offshore platform, the topic of vibration control of offshore platform has attracted increasing attention in ocean engineering area [1][2][3][4][5]. In recent decades, a variety of active control schemes have been reported, such as optimal control [6], robust control [7][8][9], sampled-data control [10,11], delayed feedback control [12,13], neural network-based control [14,15], and networkbased control [16]. It is not difficult to find that the aforesaid control strategies are all based on tuned mass damper (TMD) devices, which are generally considered as linear dynamic vibration absorbers and their damping effects on the vibration of offshore structure are limited to some degree.…”

Section: Introductionmentioning

confidence: 99%

Observer‐based sliding mode H∞$H_\infty$ control for offshore structures with nonlinear energy sink mechanisms

Chen

Zhang

et al. 2023

IET Control Theory & Appl

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It is significant to reduce the wave‐induced vibration and ensure the safety of the offshore structure. This paper deals with the observer‐based sliding mode vibration control problem of offshore structures with nonlinear energy sink (NES) mechanisms. By considering the coupled nonlinear characteristics of unmodelled dynamics, system uncertainty, and external wave force, a more general nonlinear system model of the offshore structure equipped with an NES mechanism is presented. Then, an observer‐based sliding mode control scheme for the nonlinear structure‐NES system is developed. The existence condition and the design algorithm of the observer‐based sliding mode controller are provided. Simulation results show that the observer‐based sliding mode controller is capable of reducing the wave‐induced vibration amplitude of offshore structures effectively. Compared with the NES‐based passive control, the observer‐based sliding mode controller can further reduce the response amplitudes of the offshore structure remarkably. In addition, the designed observer‐based sliding mode controller is robust the variations of structure parameters and the external wave loads, thereby presenting potential advantages of the active damping control of the offshore structure.

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