Journal of Fisheries and Marine Sciences Education (수산해양교육연구)
- Volume 11 Issue 2
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- Pages.184-202
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- 1999
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- 1229-8999(pISSN)
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- 2288-2049(eISSN)
A Study on the Anti-Rolling Control System of Small Ship
소형선박의 횡요방지 제어장치 연구
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Kim, Si-Young
(Pukyung National University) ;
- Yoo, Jae-Bok (Keochang Polytechnic College) ;
- Moon, Chul-Jin (YangSan College)
- Published : 1999.12.31
Abstract
The roll damping characteristics of the three models of a small fishing(3 ton class fishing vessel), such as the bare hull, hull with bilge keels, and hull with bilge keels and a central wing are investigated by the free roll and head waves tests in calm water in a towing tank with the various forward speeds, initial angles and OG's. The experimental results are compared with the numerical results of mathematical modelings by the energy method for these three models and the energy dissipation patterns are also compared. And the wave length variations are also included. The experimental results are compared with the numerical results of mathematical modelings by the energy method for these three models and the energy dissipation patterns are also compared. The roll damping moment of the models is increased for zero speed cases, but as the speed increases, the effect of the waves on the roll damping of the models with the additional devices is negligible due to the much increased damping caused by the lift increase.
Keywords