Results 11 to 20 of about 9,571 (299)
Control of Ship Roll Motion [PDF]
, 2014 The undesirable effects of roll motion of ships (rocking about the longitudinal axis) became noticeable in the mid-nineteenth century when significant changes were introduced to the design of ships as a result of sails being replaced by steam engines and the arrangement being changed from broad to narrow hulls.
Perez, Tristan, Blanke, Mogens
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Intelligent control algorithm for ship dynamic positioning
Archives of Control Sciences, 2014 Ship motion in the sea is a complex nonlinear kinematics. The hydrodynamic coefficients of ship model are very difficult to accurately determine. Establishing accurate mathematical model of ship motion is difficult because of changing random factors in ...
Meng Wang +3 more
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Dynamic Interaction of a Heavy Crane and a Ship in Wave Motion [PDF]
Modeling, Identification and Control, 2018 Previous work on the dynamics of vehicle-manipulator systems is extended to offshore ships with heavy cranes. The proposed method is based on a Newton-Euler formulation where the forces of constraint are eliminated using projection matrices based on the ...
Geir Ole Tysse, Olav Egeland
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Numerical research on control of longitudinal motion of ship in waves by T-foil
Zhongguo Jianchuan Yanjiu, 2018 [Objectives] A T-foil with an active control system can provide higher lift force and improve the seakeeping of a ship. It is necessary to calculate the anti-vertical motion effect with the different control signals.[Methods] The motion responses of the ...
SUN Yifang, JIANG Yichen, ZONG Zhi
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A Review on Motion Prediction for Intelligent Ship Navigation
Journal of Marine Science and EngineeringIn recent years, as intelligent ship-navigation technology has advanced, the challenge of accurately modeling and predicting the dynamic environment and motion status of ships has emerged as a prominent area of research.
Daiyong Zhang +5 more
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Nonlinear observers design for multivariable ship motion control [PDF]
Polish Maritime Research, 2012 ABSTRACT This paper presents the designs of two observers, which are: the extended Kalman filter and the nonlinear passive observer. Based on the measured values of ship position and heading, the observers estimate the surge, sway and yaw velocities of the ship motion.
Mirosław Tomera
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Fin control for ship roll motion stabilisation based on observer enhanced MPC with disturbance rate compensation [PDF]
, 2021 In this paper, a disturbance observer enhanced model predictive controller (MPC) which compensates for the wave-induced disturbance magnitude and rate is proposed for the ship roll motion stabilisation problem.
Bevan, Geraint; id_orcid +4 more
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Stability and Tracking Control of Nonlinear Rigid-Body Ship Motions
Journal of Marine Science and Engineering, 2022 The stability and tracking controls of a dynamic ship system are studied in this paper, in order to stabilize and track the desired path of a catamaran ship system.
Chatchawan Aumtab, Thanapat Wanichanon
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Waypoint Path Controller for Ships [PDF]
TransNav, 2020 The paper presents and discusses tests of a waypoint controller used to sail a ship along the desired route. The planned desired route for the moving ship is given as a set of waypoints connected with straight lines.
Miroslaw Tomera, Lukasz Alfuth
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Ship Steering Adaptive CGS Control Based on EKF Identification Method
Journal of Marine Science and Engineering, 2022 In recent years, marine autonomous surface vessels (MASS) have grown into a ship research issue to increase the level of autonomy of ship behavior decision-making and control while sailing at sea.
Wei Guan +3 more
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