Extended radiated energy method and its application to a ship roll stabilisation control system

Large roll motions induced by sea waves can severely affect the ability of surface ships to perform their missions. The additional resistance caused by ship motions reduces ship speed, especially in moderate to high sea states. In addition, with increasing needs for energy savings and emissions redu...

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Bibliographic Details
Published in:Ocean engineering 2013-11, Vol.72, p.25-30
Main Authors: Liu, Zhiquan, Jin, Hongzhang
Format: Article
Language:English
Subjects:
Active control
Added resistance
Applied sciences
Control systems
Controlled rolling
Energy conservation
Exact sciences and technology
Fin stabiliser
Genetic algorithm
Genetic algorithms
Ground, air and sea transportation, marine construction
Marine construction
Missions
PID
Radiated energy method
Reduction
Rolling motion
Ships
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Summary:Large roll motions induced by sea waves can severely affect the ability of surface ships to perform their missions. The additional resistance caused by ship motions reduces ship speed, especially in moderate to high sea states. In addition, with increasing needs for energy savings and emissions reduction, the effect of added resistance on surface ship performance and control quality must be considered when a ship roll stabilisation control system is designed. As an application, a fin stabiliser system is developed with an advanced proportional-integral-derivative (PID) controller base using a genetic algorithm. A navy vessel is considered for demonstration purposes. Linear roll motions are controlled using active fins. •Added resistance is described in the design of roll stabilization control system.•A new performance index is developed for the control system design.•Added resistance due to roll that is investigated.•An engineering practical PID model is introduced.
ISSN:0029-8018
1873-5258
DOI:10.1016/j.oceaneng.2013.06.009