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• W2921622065 abstract "Ship roll motion control is important for vessels engaged in oceanographic research activities and this paper focuses on the design of a controller for fin based roll motion stabilization of a Coastal Research Vessel (CRV). Based on the geometry of a pair of actuator fins installed at the midship of the vessel, the hydrodynamic coefficients are calculated for the vessel including the fin lift capacity. The wave disturbances are simulated as a sine time series. The objective is to design a Linear Quadratic Regulator (LQR), a state feedback controller and obtain the performance of the system. The larger objective is to implement the system eventually in laboratory scale physical simulations in wave environment. This paper primarily presents the design of the control system and evaluation through Simulink in Matlab environment. The global cost function of the system is minimized by precision tuning of the two control parameters (or weighting matrices), Q and R. The system analysis is done using frequency domain and state space approach. The simulation results show that the natural frequency and roll response closely match with the response of the physical model (CRV) in laboratory environment, as observed during the experimental study. The proposed control system is compared with a conventional PID controller. The simulation results demonstrate the effectiveness of the designed roll motion stabilization system with significant roll reduction over the operational range of the vessel." @default.
• W2921622065 created "2019-03-22" @default.
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• W2921622065 date "2019-01-01" @default.
• W2921622065 modified "2023-09-26" @default.
• W2921622065 title "Fin based active control for ship roll motion stabilization" @default.
• W2921622065 cites W1905481609 @default.
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• W2921622065 doi "https://doi.org/10.1051/matecconf/201927201026" @default.
• W2921622065 hasPublicationYear "2019" @default.
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