Journal
JOURNAL OF MARINE SCIENCE AND TECHNOLOGY
Volume 24, Issue 4, Pages 1280-1296Publisher
SPRINGER JAPAN KK
DOI: 10.1007/s00773-019-00625-4
Keywords
Maneuvering simulation; Roll-coupling effect; Pure car carrier
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Funding
- JSPS KAKENHI [JP26249135]
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In this study, a practical maneuveringsimulation method is presented considering the roll-coupling effect by extending an ordinal simulation model (3D-MMG model) proposed by Yasukawa and Yoshimura (J Mar Sci Technol 20:37-52, 2015), and adding the motion equation of roll. The roll moment acting on the hull is estimated by multiplying the hull lateral force with the vertical acting point. With respect to the surge force, lateral force, and yaw moment, the derivativeexpression model is employed. Subsequently, hydrodynamic derivatives with the exception of the roll-related terms are obtained by a captive model test based on the 3D-MMG model. The roll-related derivatives and the vertical acting point of the hull lateral force are estimated by simple formulae constructed based on the experimental data of four ship models. To validate the proposed simulation method, turning simulations are conducted for a pure car carrier model with variations in the metacentric height and are compared with free-running model test results. The simulation method exhibits sufficient accuracy with respect to its practical use and is useful to conventionally predict turning motions byconsidering the roll-coupling effect.
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