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http://dx.doi.org/10.3744/SNAK.2019.56.6.550

Design of a Pendulum-type Anti-rolling System for USSV and Verification Based on Roll Damping Coefficient  

Jin, Woo-Seok (Department of Naval Architecture & Ocean Engineering, Pusan National University)
Kim, Yong-Ho (Department of Mechatronics Engineering, Kyungnam University)
Jung, Jun-Ho (Department of Mechatronics Engineering, Kyungnam University)
Lee, Kwangkook (Department of Naval Architecture & Ocean System Engineering, Kyungnam University)
Kim, Dong-Hun (Department of Electrical Engineering, Kyungnam University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.56, no.6, 2019 , pp. 550-558 More about this Journal
Abstract
The roll motion of a general vessel, which is more influenced by resonance as compared to other motions, adversely affects the passenger and hull. Therefore, reducing the roll motion through an anti-rolling system is critical, and most ships use various devices such as anti-rolling tanks, bilge keels, and fin stabilizers to accomplish this. In this study, a simplified model is developed for the application of an anti-rolling device for unmanned semi-submersible vessels. The applied anti-rolling device is installed on the stern and stem of a ship using a pair of servo motors with added weight, and the motor is controlled through the Arduino. The moment of the motor is designed and implemented based on a mathematical model such that it is calculated through the restoring force according to the heel angle of the ship. The performance of the proposed system was verified by utilizing the roll damping coefficient calculated by the free-roll decay test and logarithmic decrement method and was validated by a towing tank test. The system is expected to be used for unmanned vessels to perform sustainable missions.
Keywords
Unmanned semi-submersible vehicle; Anti-rolling device; Free roll decay test; Logarithmic decrement method; Roll damping coefficient;
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Times Cited By KSCI : 3  (Citation Analysis)
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