Design of H∞ anti-vertical controller and optimal allocation rule for catamaran T-foil and trim tab

Zhu, Qidan; Yu, Ma

doi:10.1007/s40722-019-00139-6

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…We confirmed that the T-foil is an efficient appendage for improving trimaran seakeeping performance by comparing different testing situations [14]. The work of Zhu's team used the T-foil or trim tab to reduce the motions of fast catamaran and trimaran, and the significant anti-vertical motion results indicated the importance of installing devices [15][16][17]. Lau et al restricted the vertical motion of the vessel on a wave piercing catamaran by installing a T-foil and stern tabs, lowering motion sickness incidence (MSI) and enhancing passenger comfort [18].…”

Section: Introductionsupporting

confidence: 56%

Design Longitudinal Control System Using Suitable T-Foil Modeling for the Offshore Wind Power Operation and Maintenance Vessel with Severe Sea States

Yuan,

Liu,

Geng

et al. 2023

JMSE

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In order to reduce the offshore wind power operation and maintenance vessel motion induced by severe sea states, a suitable stabilizer with the ship based on linear quadratic regulator strategy is proposed in this paper. First of all, the dynamics of the ship motion model are established to study the longitudinal control system. The six degrees of freedom nonlinear motion model and nonlinear coupled longitudinal motion (heave and pitch) model are described in detail in this paper. Secondly, this work presents matching suitability between the T-foil and the operation and maintenance vessel. Therefore, the most suitable installation position and the optimum strut’s height of T-foil are determined by meshing the ship hull model, setting the water channel, and a series of corresponding computer fluid dynamic simulation. Following that, the linear quadratic regulator controller is studied with active longitudinal control system based on the suitable T-foil. Furthermore, a longitudinal control system is built, including free vessel module and the suitable T-foil stabilizer-based proposed controller module. Finally, the simulation results indicate that the designed T-foil and the longitudinal control system are feasible and effective to ensure the heave and pitch motion reduction based on the proposed controller.

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Section: Introductionsupporting

confidence: 56%

Design Longitudinal Control System Using Suitable T-Foil Modeling for the Offshore Wind Power Operation and Maintenance Vessel with Severe Sea States

Yuan,

Liu,

Geng

et al. 2023

JMSE

View full text Add to dashboard Cite

show abstract

“…Further, studies have already designed an RCS [13] and a longitudinal motion controller [14] for a wave-piercing boat; therefore, an RCS can also be considered feasible for improving longitudinal motion. We also design a ride control system for WPC by NSGA-II [15] and use μ synthesis theory and improved GA for its controller design [16]. However, with rapid developments in ocean engineering, military science, and modern industry, ship RCSs are becoming more complex and system performance requirements are increasing.…”

Section: Introductionmentioning

confidence: 99%

H2/H∞ Antivertical Controller Based on Particle Swarm Optimization (PSO) Using Active T‐Foils and Trim Tabs for a Fast Catamaran

Zhu

2019

Mathematical Problems in Engineering

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A wave-piercing catamaran (WPC) is a high-performance ship that has been developed in recent years. Compared to other common ships, the WPC has higher lateral stability, larger deck area, lower oil consumption, and higher speed. However, under rough seas and at high speeds, the coupled heave/pitch motions of the WPC can easily produce coupled oscillations that seriously affect its seaworthiness. To solve these problems, a ride control system was designed for the WPC in this study. This system comprises two T-foils, two trim tabs, and a catamaran motion controller. The H2/H∞ controller was designed based on memory-based particle swarm optimization to alleviate the coupled oscillation resulting from heave/pitch motions. Numerical simulations were conducted to validate the proposed method, and the results showed that the proposed motion controller could obviously improve the sea-keeping performance of a WPC.

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A design of T-foil and trim tab for fast catamaran based on NSGA-II

Zhu

2019

J Hydrodyn

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Design of H∞ anti-vertical controller and optimal allocation rule for catamaran T-foil and trim tab

Cited by 3 publications

References 10 publications

Design Longitudinal Control System Using Suitable T-Foil Modeling for the Offshore Wind Power Operation and Maintenance Vessel with Severe Sea States

Design Longitudinal Control System Using Suitable T-Foil Modeling for the Offshore Wind Power Operation and Maintenance Vessel with Severe Sea States

H2/H∞ Antivertical Controller Based on Particle Swarm Optimization (PSO) Using Active T‐Foils and Trim Tabs for a Fast Catamaran

A design of T-foil and trim tab for fast catamaran based on NSGA-II

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