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http://dx.doi.org/10.3744/SNAK.2002.39.4.024

Experimental Study on Slow Drift Motion Damping  

김현조 (한국해양연구원 해양시스템안전연구소)
홍사영 (한국해양연구원 해양시스템안전연구소)
김진하 (한국해양연구원 해양시스템안전연구소)
Publication Information
Journal of the Society of Naval Architects of Korea / v.39, no.4, 2002 , pp. 24-31 More about this Journal
Abstract
In the present study, the amount of slow drift motion damping of shuttle tanker in still water and various environments is measured through free decay model test. Although the estimation of slow drift damping is essential in analysing slow drift motion of moored FPSO or DP controlled shuttle tanker, it is difficult to predict damping accurately by theoretical analysis. The estimation of drift damping depends on model test mostly. Through the model test, the amount of slow drift damping is measured and the effects of environments and thruster action on drift damping are investigated. The measured damping characteristics are expected to be used in the analysis on slow drift motion of moored vessel.
Keywords
slow drift motion; damping; dynamic positioning; free decay test; model test; tanker; wave drift force; wave drift damping; mooring;
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