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http://dx.doi.org/10.3744/SNAK.2022.59.3.173

Development of Ship Dynamics Model by Free-Running Model Tests and Regression  

Kim, Kiwon (Department of Naval Architecture and Ocean Engineering, Chungnam National University)
Kim, Hoyong (Department of Naval Architecture and Ocean Engineering, Chungnam National University)
Choi, Sungeun (Department of Naval Architecture and Ocean Engineering, Chungnam National University)
Na, Ki-In (Intelligent Robotics Research Division, Electronics and Telecommunications Research Institute)
Lee, Hyuk (Department of System Dynamics, Korea Institute of Machinery and Materials)
Seo, Jeonghwa (Department of Naval Architecture and Ocean Engineering, Chungnam National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.59, no.3, 2022 , pp. 173-182 More about this Journal
Abstract
The present study suggests a procedure of establishing a ship dynamics modeling by regression of free-running model test results. The hydrodynamic force and moment of the whole model ship is derived from the low-pass filtered acceleration in the turning circle and zigzag maneuver tests. Force and moment of the propeller and rudder are separated from that of the whole ship to acquire the hull force and moment terms, based on the principles of the component model. The low-pass filter frequency is verified in prior to dynamics modeling, to find the threshold frequency of 2.5 Hz. The dynamics modeling of the hull is compared with the component modeling by captive model tests. Because of strong correlation between sway velocity, yaw angular velocity, and heel angle, each maneuvering coefficient is not able to be validated, but the whole modeling shows good agreement with the captive model tests.
Keywords
Free running model test; Mathematical maneuvering model; Regression;
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Times Cited By KSCI : 11  (Citation Analysis)
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