Results 11 to 20 of about 824 (280)

Adaptive Neural Network Control of Zero-Speed Vessel Fin Stabilizer Based on Command Filter

open access: yesApplied Sciences, 2022
This paper proposes a zero-speed vessel fin stabilizer adaptive neural network control strategy based on a command filter for the problem of large-angle rolling motion caused by adverse sea conditions when a vessel is at low speed down to zero.
Ziteng Sun, Chao Chen, Guibing Zhu
doaj   +2 more sources

Influence of Electric Wing Tip Propulsion on the Sizing of the Vertical Stabilizer and Rudder in Preliminary Aircraft Design [PDF]

open access: yesAerospace, 2023
During preliminary aircraft design, the vertical tail sizing is conventionally conducted by the use of volume coefficients. These represent a statistical approach using existing configurations’ correlating parameters, such as wing span and lever arm, to ...
Alexander Albrecht   +5 more
doaj   +3 more sources

Modelling, Simulation and Controller Design for Hydraulically Actuated Ship Fin Stabilizer Systems

open access: yesMATEC Web of Conferences, 2016
In general, hydraulic systems that are used for ship fin stabilizers and rudders, are modelled as first or second order of linear equations to obtain only system’s delay and overshoot for controlling purposes.
Zihnioglu Alper   +4 more
doaj   +3 more sources

Numerical and Testing Analysis of Fin Stabilizers of A Medium Sized Cruise Ship with Overset Grids

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Fin stabilizers represent an effective solution to address the roll motion of ships and improve the comfort of passengers on cruise ships. These devices typically comprise of one or two pairs of retractable fins, symmetrically mounted on either side of ...
YAO Rulin, FAN Qidong, YU Long, WANG Xuefeng
doaj   +1 more source

Analysis and troubleshooting of fin stabilizer shutdown

open access: yesJournal of Physics: Conference Series, 2022
Abstract Starting from an accident of overload trip and shutdown of fin stabilizer main motor caused by fin stabilizer fault, this paper studies the working principle of this type of fin stabilizer hydraulic system and electrical control system, analyzes the root cause of the fault, introduces the fault treatment method and process in ...
Shuren Wang   +3 more
openaire   +1 more source

Predictive Control for a Fin Stabilizer [PDF]

open access: yesJournal of Navigation and Port Research, 2007
A predictive controller can solve a control problem related to a disturbance-dominant system such as roll stabilization of a ship in waves. In this paper, a predictive controller is developed for a fin stabilizer. Future wave-induced moment is modeled simply using two typical regular wave components for which six parameters are identified by the ...
Hyeon-Kyu Yoon   +2 more
openaire   +1 more source

Fin-Rudder Joint Control Based on Improved Linear-Quadratic-Regulator Algorithm

open access: yesIEEE Access, 2022
Navigation accidents and disasters frequently occur when ships sail at sea owing to extreme weather, wind, and wave conditions. The disturbance of wind and waves affects the stability of the ship’s course and makes the ship roll violently.
Yuhan Zhao   +3 more
doaj   +1 more source

Controller Design for Roll Motion of a Planing Hull From a Safe Transportation Perspective

open access: yesJournal of Transportation and Logistics, 2020
The issue of safe navigation in the maritime sector is becoming more important day by day. This situation is valid not only in terms of passenger and cargo transportation, but also in different maritime operations.
Hakan Demirel, Fuat Alarçin
doaj   +1 more source

An Overview of Roll Stabilizers and Systems for Their Control [PDF]

open access: yesTransNav, 2015
Ship roll motion in waves can be characterized as a strongly non-linear and multivariable dynamic process which is more affected by disturbances, in general, than by the maximal controlling parameter.
Krzysztof Kula
doaj   +1 more source

Integrated Rudder/Fin Control With Disturbance Compensation Distributed Model Predictive Control

open access: yesIEEE Access, 2018
For the ship sailing in the seaway, usually the rudder is used to control the heading and the fin stabilizer is used to reduce rolling. However, there are interactions between their control effects, which usually deteriorate the control performance.
Lihua Liang, Yu Wen
doaj   +1 more source

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