Browse > Article
http://dx.doi.org/10.3744/SNAK.2015.52.2.135

Experimental Study on the Period Control of an U-tube Type Anti-Rolling Tank by using a Double Layer Duct  

Ju, Youngkwang (Dept. of Naval Architecture & Marine Systems Engineering, Graduate School, Pukyong National University)
Kim, Yong Jig (Dept. of Naval Architecture & Marine Systems Engineering, Pukyong National University)
Ha, Youngrok (Dept. of Naval Architecture & Ocean Engineering, Koje College)
Publication Information
Journal of the Society of Naval Architects of Korea / v.52, no.2, 2015 , pp. 135-142 More about this Journal
Abstract
The Anti-Rolling Tank(ART) has an advantage over the other roll stabilizing devices, when ship is staying and working at one site of sea. An important design point of ART is the tank tuning, that is, matching the tank natural period to the ship's roll natural period. Since the load condition and consequently the roll natural period of ship is to be changed widely, the natural period of ART also has to be changed widely. In case of the existing U-tube type ART with a single layer duct, the tank natural period can be changed in a relatively narrow range. This paper suggests a new U-tube type ART system using a double layer duct to enable wide change of ART natural period. Through the roll experiments performed in regular beam waves for a box-type model ship, it is shown that the double layer duct ART has about two times wider period range and a better reducing effect of roll magnitude than the single layer duct ART.
Keywords
Double layer duct; Anti-rolling tank; Period control; Experimental study;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Field, S.B. & Martin, J.P., 1975. Comparative effects of U-Tube and free Surface Type Passive Roll Stabilisation Systems. The Royal Institution of Naval Architects, Spring Meetings, London, 24 April 1975, pp.1-14.
2 Gawad, A.F.A., Ragab, S.A., Nayfeh, A.H. & Mook, D.T., 2001. Roll Stabilization by Anti-Roll Passive Tanks. Ocean Engineering, 28, pp.457-469.   DOI   ScienceOn
3 Lew, J.M., Kim, H. & Lee, H.Y., 2003. A Study on the Effects of the Period Control Device of Anti-Rolling Tanks. Journal of the Society of Naval Architects of Korea, 40(1), pp.1-7.   DOI
4 Lloyd, A.R.J.M., 1989. Seakeeping: Ship Behaviour in Rough Weather. Ellis Horwood Limited, Chichester, New york, pp.377-397.
5 Moaleji, R. & Greig, A.R., 2007. On the Development of Ship Anti-Roll Tanks. Ocean Engineering, 34, pp.103-121.   DOI   ScienceOn
6 Sellars, F.H. & Martin, J.P., 1992. Selection and Evaluation of Ship Roll Stabilization Systems. Marine Technology, 29(2), pp.84-101.
7 Stigter, C., 1966. The Performance of U-Tanks as a Passive Anti-Rolling Device. ISP, 13(144), pp.249-275.
8 Woo, B.K. & Koo, J.D., 1971. On the Performance of the Anti-Rolling Tank(1). Journal of the Society of Naval Architects of Korea, 8(2), pp.35-44.
9 Woo, B.K., In, C.H. & Koo, J.D., 1974. On the Performance of Anti-Rolling Tanks(2). Journal of the Society of Naval Architects of Korea, 11(1), pp.17-26.