Original scientific paper
https://doi.org/10.21278/brod74408
The effect of PID control scheme on the course-keeping of ship in oblique stern waves
Yunbo Li
; College of Ocean Science and Engineering, Shanghai Maritime University
Zongyu Tang
; College of Ocean Science and Engineering, Shanghai Maritime University
Jiaye Gong
; College of Ocean Science and Engineering, Shanghai Maritime University
Abstract
Sailing in oblique stern waves causes a ship to make sharp turns and uncontrollable course deviation, which is accompanied by a large heel and sometimes leads to capsizing. Studying the control algorithm in oblique stern waves is imperative because an excellent controller scheme can improve the ship’s course-keeping stability. This paper uses the Maneuvering Modelling Group (MMG) method based on hydrodynamic derivatives and the Computational Fluid Dynamics (CFD)-based self-navigation simulation to simulate ship navigation in waves. This study examines the effect of proportion-integral-derivative (PID) controller schemes on the stability of course maintenance based on hydrodynamic derivatives and 3DOF MMG methods. Then, the optimized PID control parameters are used to simulate the ship’s 6DOF self-propulsion navigation in oblique waves using the CFD method. The nonlinear phenomena during the process, such as side-hull emergency, slamming, and green water, are considered. This study found that the range of the control bandwidth should be optimized based on the ship's heading and wave parameters.
Keywords
Trimaran; oblique stern wave; PID scheme; CFD method; manoeuvrability
Hrčak ID:
309158
URI
Publication date:
1.9.2023.
Visits: 296 *