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http://dx.doi.org/10.3744/SNAK.2020.57.6.345

A Study on Full-Scale Crabbing Test Using Dynamic Positioning System  

Park, Jong-Yong (Department of Naval Architecture and Marine System Engineering, Pukyong National University)
Lee, Jun-Ho (Training Ship NARA, Pukyong National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.57, no.6, 2020 , pp. 345-352 More about this Journal
Abstract
This study aims to investigate the crabbing motion of the research vessel "NARA" by full-scale maneuvering trials. The crabbing test method refers to ITTC recommended procedures and guidelines. In order to minimize the fluctuation of the heading angle due to the external force acting on the hull during the pure lateral motion, the tests are conducted using the dynamic positioning system applied to the ship. The test results are analyzed by applying a low-pass filter to remove the noise included in the measurement data. Three conditions are set to define the steady state of crabbing motion. The index to be derived from the crabbing test is quantitatively presented. The ship is confirmed to be capable of the lateral motion of up to 0.844m/s in Beaufort 3.
Keywords
Crabbing test; Dynamic positioning system; Research vessel NARA; Bow thruster; Azimuth propeller;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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