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http://dx.doi.org/10.5394/KINPR.2016.40.6.361

Reducing Ship Rolling with a Anti-Rolling Pendulum  

Park, Sok-Chu (Division of Naval Architecture and Ocean Engineering System, National Korea Maritime University)
Yi, Geum-Joo (Graduate School, National Korea Maritime University)
Park, Kyung-Il (Khan co., ltd.)
Publication Information
Journal of Navigation and Port Research / v.40, no.6, 2016 , pp. 361-368 More about this Journal
Abstract
A ship's rolling motion can make crew and passengers sick and/or apply forces to the structure that cause damage.. Therefore bilge keels are equipped in most ships for anti-rolling. In special cases, anti-rolling tanks (ARTs), fin stabilizers, or gyroscopes can be installed. However, ARTs require a large area to install, and fin stabilizers and gyroscopes are costly to install and expensive to operate. This paper suggests a Anti-rolling pendulum (ARP) to reduce roll motion. ARPs acts like ARTs. However, the ARP has a circular shaped guidance arc instead of the string or wire of a simple pendulum. The device suggested has about 1/ 8 the weight and 1/ 6 the volume of a ART and is more effective. This study derives the nonlinear and linear differential equations of system motion.
Keywords
Anti-Rolling; Anti-Rolling Tank(ART); Anti-Rolling Pendulum(ARP); Simple Pendulum; Linear Equation of Motion; Nonlinear Equation of Motion;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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