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http://dx.doi.org/10.7837/kosomes.2014.20.4.443

Experimental Study on Hydrofoil Arrangement and Longitudinal Moment Characteristics for Navigation Safety of High Speed Craft  

Park, Hwa-Pyeong (Ship & Ocean R&D Institute, DAEWOO SHIPBUILDING & MARINE ENGINEERING CO.,LTD.)
Kim, Sang-Hyun (Dept. of Naval Architecture & Ocean Engineering, School of Mechanical Engineering, INHA University)
Lim, Geun-Nam (Dept. of Naval Architecture & Ocean Engineering, Graduate School, INHA University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.20, no.4, 2014 , pp. 443-450 More about this Journal
Abstract
In this study, we have discussed about the effect of hydrofoil arrangement and longitudinal moment characteristic on longitudinal motion stability of fully-submerged hydrofoil by the experiment of tandem hydrofoil model. First of all, tandem hydrofoil model that has canard wing arrangement has been made and characteristics of lift force and drag force by performing the lift force and drag force measuring experiment has also been estimated. Besides, tandem hydrofoil model's wing arrangement which has the initial stability and self stability of longitudinal motion has also been determined. In longitudinal stability experiment of tandem hydrofoil model, the motion characteristic of pitch and heave and the longitudinal stability of foil borne condition by variation of self stability of longitudinal moment and longitudinal distance are estimated. The result from the experiment and it's important conclusion can be described as below; Increase the self stability for longitudinal moment, the higher self stability for pitch motions in a constant pitch angles. By increasing the self stability for longitudinal moment, the range of fluctuation of pitch motion and heave motion for pitch angle also will change relatively small and longitudinal stability is excellent. Lastly, when the lift force of hydrofoil is remain constants, we can conclude that securing the enough self stability for longitudinal moment is essential for stable foil borne condition of tandem hydrofoil.
Keywords
Fully-submerged hydrofoil; Tandem hydrofoil; Longitudinal moment; Initial stability; Self stability; Foil arrangement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Choi, J. K. and H. T. Kim(2009), Evaluation of Longitudinal Static Stability of Human Powered Hydrofoil Boat, Journal of the Society of Naval Architects of Korea, Vol. 46, No. 4, pp. 391-397.   과학기술학회마을   DOI   ScienceOn
2 Itoko, T., S. Higashino, Y. Yamagami and T. Ikebuchi(1991), The Development of an Automatic Control System for a Submerged Hull and Foil Hybrid Super-High-Speed Liner, FAST, '91, Trondheim. 1st Intl Conf on Fast Sea Transportation, pp. 17-21.
3 Kim, S. H. and H. Yamato(2004a), An Experimental Study of the Longitudinal Motion Control of a Fully Submerged Hydrofoil Model in Following Seas, Ocean Engineering, Vol. 31, No. 5-6, pp. 523-537.   DOI   ScienceOn
4 Kim, S. H. and H. Yamato(2004b), On the Design of a Longitudinal Motion Control System of a Fully-Submerged Hydrofoil Craft Based on the Optimal Preview Servo System, Ocean Engineering, Vol. 31, No. 13, pp. 1637-1653.   DOI   ScienceOn
5 Min, K. S., S. H. Kang and K. B. Lee(2004), Design of 4-Person Human Powered Vessel, Proceeding of the Annual Autumn Meeting, SNAK, pp. 702-708.
6 Miyata, H., E. Yokoyama, D. Dakahashi and J. Nagai(2006), Science of Yacht. Translated by Hong, S.W. 1st Ed. Jisung Press : Seoul. pp. 98-103.
7 Seo, D. W., J. K. Oh and S. H. Lee(2010), A Study for Improvement of Loft Performance of A Horn-type Rudder with the Coanda Effect, Journal of the Society of Naval Architects of Korea, Vol. 47, No. 4, pp. 543-552.   DOI   ScienceOn
8 Tadanori, K., U. Makoto and N. Eiichi(2000), Performance of a Hydrofoil Travelling Near a Water Surface, The Japan Society of Naval Architects and Ocean Engineers, No. 233, pp. 17-22.
9 Weist, W. R. and W. I. Mitchell(1976), The Automatic Control System for the Boeing Commerical "JETFOIL", IEEE, NAECON' 76 Record, pp. 366-375.