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http://dx.doi.org/10.5574/KSOE.2016.30.1.025

Prediction of Hydrodynamic Coefficients for Underwater Vehicle Using Rotating Arm Test  

Jeong, Jae-Hun (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Han, Ji-Hun (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Ok, Jihun (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim, Hyeong-Dong (Agency for Defense Development)
Kim, Dong-Hun (Agency for Defense Development)
Shin, Yong-Ku (Agency for Defense Development)
Lee, Seung-Keon (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Publication Information
Journal of Ocean Engineering and Technology / v.30, no.1, 2016 , pp. 25-31 More about this Journal
Abstract
In this study, hydrodynamic coefficients were obtained from a Rotating Arm (RA) test, which is one of the captive model tests used to provide accurate coefficients in the control motion equation of an underwater vehicle. The RA test was carried out at the RA facility of ADD (Agency for Defense Development), and the forces and moments acting on the underwater vehicle were measured using a six-axis waterproof gage. A multiple regression analysis was used in the analysis of the measured data. The experimental results were also verified by comparison with the theoretical values of the previous linear coefficients. In addition, the stability indices in the horizontal plane were calculated using the linear and nonlinear coefficients, and the dynamic stability of the underwater vehicle was estimated to have a good dynamic performance with a depth ratio of 6.0.
Keywords
Rotating arm test; Hydrodynamic coefficient; Underwater vehicle; Depth ratio; Dynamic stability;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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