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http://dx.doi.org/10.3744/SNAK.2005.42.6.551

An Experimental Study of the Submerged Depth Effect on the Manoeuvrability in a Horizontal Plane of an Underwater Vehicle  

Seol, Dong-Myung (Dept. of Naval Architecture and Ocean Engineering, Seoul National University)
Rhee, Key-Pyo (Dept. of Naval Architecture and Ocean Engineering, Seoul National University)
Yeo, Dong-Jin (Dept. of Naval Architecture and Ocean Engineering, Seoul National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.42, no.6, 2005 , pp. 551-558 More about this Journal
Abstract
In this paper, horizontal manoeuvrability of an underwater vehicle near free surface was investigated. Planar Motion Mechanism(PMM) tests were performed at the shallow depth within 4.5 times of vehicle's diameter. Hydrodynamic coefficients related to the horizontal movement were estimated from the measured data using Least SQuare(LS) method and analyzed at each submerged depth. Furthermore, horizontal dynamic stability, trajectory of turning and zigzag test were investigated for the various depths. As underwater vehicle is positioned nearer to the free surface, forces increase and moment decreases. Tested model was found to be stable only at the depth 0.5 times of vehicle's diameter.
Keywords
Underwater vehicle; Manoeuvrabiiity; PMM; Hydrodynamic coefficient; Oepth change; Least sfuare method;
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