Model tests on resistance and seakeeping performance of wave-piercing high-speed vessel with spray rails
0
조회
0
다운로드
6
인용
0
참고문헌
키워드
초록
The resistance and seakeeping performance of a high-speed monohull vessel were investigated through a series of model tests in a towing tank. The hull had a slender wave-piercing bow, round bilge, and small deadrise angle on stern. Tests on the bare hull in calm water were first conducted and tests on spray rails followed. The spray rails were designed to control the flow direction and induce a hydrodynamic lift force on the hull bottom to reduce trim angle and increase rise of the hull. The maximum trim of the bare hull was 4.65 at the designed speed, but the spray rails at optimum location reduced trim by 0.97. The ship motion in head seas was examined after the calm water tests. Attaching the rails on the optimum location effectively reduced the pitch and heave motion responses. The vertical acceleration at the fore perpendicular reduced by 11.3%. The effective power in full scale was extrapolated from the model test results and it was revealed that the spray rails did not have any negative effects on the resistance performance of the hull, while they effectively stabilized the vessel in calm water and waves.
Abstract
The resistance and seakeeping performance of a high-speed monohull vessel were investigated through a series of model tests in a towing tank. The hull had a slender wave-piercing bow, round bilge, and small deadrise angle on stern. Tests on the bare hull in calm water were first conducted and tests on spray rails followed. The spray rails were designed to control the flow direction and induce a hydrodynamic lift force on the hull bottom to reduce trim angle and increase rise of the hull. The maximum trim of the bare hull was 4.65 at the designed speed, but the spray rails at optimum location reduced trim by 0.97. The ship motion in head seas was examined after the calm water tests. Attaching the rails on the optimum location effectively reduced the pitch and heave motion responses. The vertical acceleration at the fore perpendicular reduced by 11.3%. The effective power in full scale was extrapolated from the model test results and it was revealed that the spray rails did not have any negative effects on the resistance performance of the hull, while they effectively stabilized the vessel in calm water and waves.
참고문헌 (16)
- ASME, "Test uncertainty, The American society of mechanical engineers performance test code, No. 19.1-2005", American Society of Mechanical Engineers, ~ (2005)
- Begovic, E., "Experimental seakeeping assessment of a warped planing hull model series", Ocean. Eng, 83, pp.1~15 (2014)
- Effects of Longitudinal Bottom Spray Strips on Planing Boat Resistance, "Clement, E. P.", David Taylor Model Basin, ~, pp.DTMB Report, No. 1818 (1964)
- A Systematic Study of the Rough-water Performance of Planing Boats, "Fridsma, G.", Stevens Institute of Technology, ~, pp.Davidson Laboratory Report, No. 1275 (1969)
- Grigoropoulos, G. J., "Hull-form optimization in calm and rough water", Comput. aided Des, 42, pp.977~984 (2010)
- Katayama, T., "A study on transverse stability loss of planing craft at super high forward speed", Int. Shipbuild. Prog, 54(4), pp.365~377 (2007)
- Keuning, A., "The effect of bowshape on the seakeeping performance of a fast monohull", Proceedings of FAST Conference (2001)
- Keuning, A., "Further investigation into the hydrodynamic performance of the AXE bow concept", Proceedings of the 6th Symposium on High Speed Marine Vehicles (2002)
- 김동진, "반배수량형 둥근빌지 고속선의 항주자세 및 동적안정성에 관한 연구", 박사, 산업·조선공학부, pp.2012
- 김동진, "Design of high-speed planing hulls for the improvement of resistance and seakeeping performance", International Journal of Naval Architecture and Ocean Engineering, 5(1), pp.161~177 (2013), 대한조선학회
- Larsson, L., "Principles of Yacht Design" (2014), Adlard Coles Nautical
- Lavroff, J., "Wave slamming loads on wave-piercer catamarans operating at high-speed determined by hydro-elastic segmented model experiments", Mar. Struct, 33, pp.120~142 (2013)
- Lewandowski, E. M., "Transverse dynamic stability of planing craft", Mar. Technol, 34(2), pp.109~118 (1997)
- Resistance Tests of a Systematic Series of U.S. Coast Guard Planing Hulls, "Metcalf, B. J.", Naval SurfaceWarfare Center CarderockDivision, ~, pp.Report of Naval Surface Warfare Center Carderock Division, No. NSWCCD-50-TR- 2005 (2005), 063
- Sun, H., "Dynamic motions of planing vessels in head seas", J. Mar. Sci. Technol, 16, pp.168~180 (2011)
- Yousefi, R., "Hydrodynamic analysis techniques for high-speed planing hulls", Appl. Ocean Res, 42, pp.105~113 (2013)