벌브를 가진 쌍동형 선박의 종동요 응답 스펙트럼 분석
Analysis on the Pitch Response Spectra of a Catamaran with Bulb
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참고문헌
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초록
본 연구에서는 18미터급 쌍동형 선형의 선수벌브 유무에 따른 운동응답특성을 선형 스트립이론에 기초한 상용코드(Seakeeper)를 이용하여 추정하였다. 계산조건으로는 ITTC 파스펙트럼에 기초한 뷰포트 풍력계급 3 (T=2.98s, H1/3=0.6m), 4 (T=3.85s, H1/3=1m) 및 5 (T=5.44, H1/3=2m)의 파스펙트럼을 산출하였고, 조우각은 선수파, 선수사파 및 횡파를 적용하여 종동요의 선체운동응답스펙트럼을 해석하였다. 선수벌브가 적용된 쌍동선 선형은 선수파와 선수사파에서 최대 20%의 종동요 응답이 감소하는 효과를 나타냈다.
Abstract
In this study, a commercial seakeeping program Seakeeper, integrated into Maxsurf, which is based on the linear strip theorywas employed to compare the effect of bulbous bow (with/without) on motion response characteristics in a 18-meter catamaran. Theseakeeping analyses were conducted at several Beaufort wind conditions such as scale No. 3 (T=2.98s, H1/3=0.6m), No. 4 (T=3.85s, H1/3=1m) and No. 5 (T=5.44, H1/3=2m) based on ITTC wave spectrum. Pitch motion response spectrum was calculated at Head sea,Head & bow sea and Beam sea as encounter angles. Hull form of a catamaran with bulb showed the maximum 20% decrease of pitchmotion response as compared to that of hull form without bulb.
참고문헌 (12)
- Mehmet Atlar, "Anti-slamming bulbous bow and tunnel stern applications on a novel Deep-V catamaran for improved performance", International Journal of Naval Architecture and Ocean Engineering, 5(2), pp.302~312 (2013), 대한조선학회
- Bruzzone, D., "Nonlinear Seakeeping Analysis of Catamaran with Central Bulb", International Conference on High Performance Marine Vehicles, pp.47~61 (2008)
- Chun, H. H., "Resistance and Seakeeping Tests of a LOA 47.4m Class Catamaran", Journal of the Society of Naval Architects of Korea, 36(4), pp.56~63 (1999)
- Davis, M. R., "The influence of hull form on the motions of high speed vessels in head seas", Ocean Engineering, 30, pp.2091~2115 (2003)
- Fang, C. C., "Investigation of Motions of Catamarans in Regular Waves-1", Ocean Engineering, 23(1), pp.89~105 (1996)
- Fang, C. C., "An investigation on the vertical motion sickness characteristics of a high-speed catamaran ferry", Ocean Engineering, 34, pp.1909~1917 (2007)
- Fang, C. C., "Investigation of seakeeping characteristics of high-speed catamaran in waves", Journal of Marine Science and Technology, 12(1), pp.1909~1917 (2007)
- 김옥석, "카타마란형 파워요트의 운동응답 특성에 관한 연구", 한국항해항만학회지, 34(6), pp.447~452 (2010), 한국항해항만학회
- 한승재, "상용코드를 이용한 다방향 불규칙파중 실습선의 종운동해석", 해양환경안전학회지, 18(2), pp.153~159 (2012), 해양환경안전학회[DOI]
- Holloway, D. S., "Ship motion computations using a high Froude number time domain strip theory", Journal of Ship Research, 50(1), pp.15~30 (2006)
- Sahoo, P. K., "Theoretical and Experimental Study of Motion Characteristics of High-Speed Catamaran Hull Forms", Practical design of ships and other floating structures, 9(2), pp.665~671 (2004)
- Salvesen, N., "Ship Motions and Sea Loads", Trans. Society of Naval Architects and Marine Engineers, 78, pp.250~287 (1970)