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- Title
Coefficients Extraction of Model and Constrained Controller Design for Fin-Roll Stabilizer System in a Fishing Boat.
- Authors
Malekizade, Hamid; Moaveni, Bijan; Jahed-Motlagh, Mohammad Reza; Esmailian, Ehsan; Avili§, Mohammad Ghomi
- Abstract
This study aimed at stabilizing and decreasing the fishing boat's nonlinear roll motion using a fin-roll stabilizer. To do so, numerical and analytical modeling have been introduced. In addition, a numerical method and empirical formulas for calculating the coefficients of the model are used. A Computational fluid dynamics (CFD)method is employed to analyze both the fluid flow and its effect on the fin performance. Constrained linear quadratic regulator (LQR) controller is designed and used to control the roll motion in the presence of operational constraints of the fin's actuator. To boost the validity of results, the performance of this controller is compared with a conventional proportional--integral--derivative (PID) controller. Simulation results demonstrate the significant amount of reduction in roll amplitude.
- Subjects
FISHING boats; NUMERICAL analysis; COMPUTATIONAL fluid dynamics; ACTUATORS; PID controllers; BOAT design &; construction
- Publication
Journal of Ship Production & Design, 2018, Vol 34, Issue 3, p226
- ISSN
2158-2866
- Publication type
Article
- DOI
10.5957/JSPD.160021