규칙파 중 갑판침입수 충격하중 감소를 위한 선수형상 설계
Design of Bow Shape to Decrease Green Water Impact Loading in Regular Waves
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In this research, the relationship between the bow shape and green water phenomenon on the bow deck of an FPSO was studied using an experimental method. A 140,000 DWT FPSO was used as the objective hull form in the present research. The incident waves were regular types. The heights were 1.0 and 1.5 times the freeboard, and the length was equal in size to LBP. The wave heights and pressures on the deck were measured in experiments. Model tests were performed to determine the effects of bow flare angles, bow shapes, and a forecastle deck. The free heave and pitch conditions were applied to the models in these experiments. From the results of the model tests, an optimized bow shape was designed, which was found to decrease the green water impact loading. The results of this research could be used as fundamental data in the design of a bow shape.
Abstract
In this research, the relationship between the bow shape and green water phenomenon on the bow deck of an FPSO was studied using an experimental method. A 140,000 DWT FPSO was used as the objective hull form in the present research. The incident waves were regular types. The heights were 1.0 and 1.5 times the freeboard, and the length was equal in size to LBP. The wave heights and pressures on the deck were measured in experiments. Model tests were performed to determine the effects of bow flare angles, bow shapes, and a forecastle deck. The free heave and pitch conditions were applied to the models in these experiments. From the results of the model tests, an optimized bow shape was designed, which was found to decrease the green water impact loading. The results of this research could be used as fundamental data in the design of a bow shape.
참고문헌 (14)
- 이영길, "선수형상이 갑판침입수에 미치는 영향에 관한 실험 및 수치적 연구", 대한조선학회 2011년도 추계학술대회, pp.365~372 (2011), 대한조선학회
- 하윤진, "규칙파 중 갑판침입수에 미치는 선수 플레어 각도의 영향에 관한 실험적 연구", 대한조선학회 논문집, 49(1), pp.79~86 (2012), 대한조선학회
- Barcellona, M., "An Experimental Investigation on Bow Water Shipping", Jounal of Ship Research, 47(4), pp.327~345 (2003)
- Buchner, B., "The Effect of Bow Flare Angle on FPSO Green water loading", Proc. of ETCE, 2002, ~
- Ersdal, G., "Green Water on Norwegian Production Ships", ISOPE 2000 (2000)
- Faulkner, D., "Survival Design of Cargo Hatch Structures", RINA Conference Design and Operation for Abnomal Conjdition Ⅱ (2001)
- "Recommended Procedures and Guidelines, 7.5-02, 07-02.1", The international towing tank conference (ITTC), pp.1~17 (2008)
- Lloyd, A.J.R.M., "The Effect of Bow Shape on Deck Wetness in Head Seas" (1985), RINA
- Morris, W.D.M., "Green Water Susceptibility of North Sea FPSO", FSUs, 2000, ~
- O'Dea, J.F., "The Effect of Bow Shape and Non-linearities on the Prediction of Large Amplitude Motions and Deck Wetness", 15th Symposium on Naval Hydrodynamics (1984)
- Takagi, K., "Deck Wetness and Influence of Above Water Hull Form at Bow", Kanai Soc. N. A., Japan, (290) (1993)
- Tan, S. G., "Observations Made on Board of Dutch Merchant Ships", Int. Shipbuilding Progress, 16(181), pp.259~279 (1969)
- Watanabe, I., "Effect of Bow Flare Shape to the Wave Loads of a Container Ship", JSNA Japan, 166 (1989)
- ''Remarks on Influence of Bow Flare Form on Deck Wetness, "Watanabe, I.", ~ (1990)