고속선박의 선수부 상자형 구조물에 작용하는 Green Water 설계 충격하중의 산출
Computation of the Green Water Design Impact Loads Acting on the Box-Type Structure of a High-Speed Ship's Bow
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In rough seas, green water shipped on board may impose quite large impact loads on the structures on deck and sometimes result in structure damages. One of the essential tasks of the naval fluid engineers is to provide the design impact loads which are needed for proper design of the structure strength against the green water impacts. Computation of the design impact load due to green water needs first a process to find the sea condition and the ship cruising condition which cause maximum green water impacts on structures as well as other succeeding processes to compute ship motion responses, green water flows and impact loads. Also, as a bold and practical process, it is needed that the irregular real seas are to be substituted by design regular waves which are equivalent in view points of green water impacts. In this paper, the whole processes to compute the design green water loads acting on bow structure are set up creatively. And the green water design impact loads acting on the box-type structure of a high-speed ship's bow are computed and discussed.
Abstract
In rough seas, green water shipped on board may impose quite large impact loads on the structures on deck and sometimes result in structure damages. One of the essential tasks of the naval fluid engineers is to provide the design impact loads which are needed for proper design of the structure strength against the green water impacts. Computation of the design impact load due to green water needs first a process to find the sea condition and the ship cruising condition which cause maximum green water impacts on structures as well as other succeeding processes to compute ship motion responses, green water flows and impact loads. Also, as a bold and practical process, it is needed that the irregular real seas are to be substituted by design regular waves which are equivalent in view points of green water impacts. In this paper, the whole processes to compute the design green water loads acting on bow structure are set up creatively. And the green water design impact loads acting on the box-type structure of a high-speed ship's bow are computed and discussed.
참고문헌 (15)
- Beck, R.F., "Principles of naval architecture – 2nd revision, Chapter 8 Motions in waves" (1989), SNAME
- Buchner, B., "On the impact of green water loading on ship and offshore unit design", PRADS '95, pp.430~443 (1995)
- Buchner, B., "The influence of the bow shape of FPSOs on drift forces and green water", Offshore Technology Conference 96, pp.389~400 (1996)
- 하윤진, "규칙파 중 갑판침입수에 미치는 선수 플레어 각도의 영향에 관한 실험적 연구", 대한조선학회 논문집, 49(1), pp.79~86 (2012), 대한조선학회
- Hwang, J.H., "On the nonlinear hydrodynamic forces due to large amplitude forced oscillations", Journal of the Society of Naval Architects of Korea, 22(3), pp.1~8 (1985)
- 정광열, "선수갑판형상이 갑판침입수에 미치는 영향에 관한실험 및 수치적 연구", 대한조선학회 논문집, 50(5), pp.273~281 (2013), 대한조선학회
- 정광열, "선수부 갑판침입수의 수치시뮬레이션에 대한 기초연구", 대한조선학회 논문집, 47(2), pp.188~195 (2010), 대한조선학회
- Kim, Y.J., "Numerical simulation of Two-dimensional shipping water by using a simplified model", Journal of the Society of Naval Architects of Korea, 33(2), pp.1~12 (1996)
- 신기석, "규칙파 중 선수갑판 Green Water에 대한 수치계산 및 실험", 대한조선학회 논문집, 42(4), pp.350~356 (2005), 대한조선학회
- 이치승, "Investigation of structural responses of breakwaters for green water based on fluid-structure interaction analysis", International Journal of Naval Architecture and Ocean Engineering, 4(2), pp.83~95 (2012), 대한조선학회
- Mitsui Shipbuilding & Engineering Co., Ltd, "A computer program for theoretical calculation of sea-keeping quality of ships", Japan Shipbuilding &Marine Engineering, 9(3) (1975)
- Mizoguchi, S., "Analysis of shipping water with the experiments and the numerical calculations", Journal of the Society of Naval Architects of Japan, 163, pp.150~159 (1988)
- Pekken, G., "Simulation of green water loading using the Navier-Stokes equations", 7th International Conferences on Numerical Ship Hydrodynamics (1999)
- Pham, X.P., "Evaluation of green water loads on high-speed containership using CFD", Ocean Engineering, 32, pp.571~585 (2005)
- Tasai, F., "Theory and calculation of ship responses in regular wave", Symposium on Seaworthiness of Ships (1969), SNAJ