탄소복합소재를 적용한 18ft급 레저보트의 수선하부 저항성능에 관한 연구
A Study on the Resistance Performance Under Hull Form of 18ft Leisure Boat with Carbon Composite Materials
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초록
활주 선형의 선박은 직선으로 운항하거나 선회할 때, 그 속도에 따라 위치와 트림이 변화하며, 선체에 큰 저항이 발생한다. 본 논문에서는 탄소복합소재를 선체에 적용하여 선체무게와 내구성이 향상된 레저보트의 전산유체역학을 통해 선형에 대한 저항을 추정하였다. 18ft급 레저보트의 선수부와 선미부의 저항 성능을 확인하고 선형 전체의 유동장을 추정하였으며, 수치해석을 통해 각 트림의 저항을 비교하여 선형에 대한 안정성을 확인하였다. 또한, 선체에 걸리는 힘이 크지 않아 설계된 선형이 충분히 견딜 수 있을 것을 확인하였고, 파도의 파장과 배의 길이를 관성력에 대한 중력의 비로 계산하여 롤링이 얼마의 힘으로 발생하는지 확인하여 보트의 안정성을 분석하였다.
Abstract
When a ship with a planing line operates or turns in a straight line, the floating position and trim change according to the speed, and a large resistance is generated on the hull. In this paper, the resistance to a planing line was estimated through the computational fluid dynamics of a leisure boat with improved hull weight and durability by applying a carbon composite material to the hull. The resistance performance of the bow and stern of the 18ft class leisure boat was checked and the flow field of the entire vessel was estimated, and the stability of the planing line was confirmed by comparing the resistance of each trim through numerical analysis. In addition, it was confirmed that the designed planing line could withstand it sufficiently because the force applied to the hull was not large, and The stability of the boat was analyzed by calculating the wavelength of the wave and the length of the ship as the ratio of gravity to the inertial force and checking how much force the rolling occurred.
참고문헌 (12)
- 윤현규, "정수중을 활주하는 고속선의 6자유도 운동 모델링 및 시뮬레이션", 대한조선학회 논문집, 53(1), pp.10~17 (2016), 대한조선학회
- Karimi, M. H., "A Study on Vertical Motions of High-speed Planing Boats with Automatically Controlled Stern Interceptors in Calm Water and Head Waves", Ships and Offshore Structure, 10(3), pp.335~348 (2015)
- Kim, D. J., "Effects of Trim Tabs on Running Attitude and Resistance Performance of a Water-jet Propelled High Speed Vessel", Journal of the Korean Society of Naval Architects of Korea, 2011(11), pp.3~4 (2011)
- 신국환, "선외기 부상판이 장착된 선박의 유체성능 검증을 위한 전산유체해석 연구", 한국기계기술학회지, 23(4), pp.485~491 (2021), 한국기계기술학회[DOI]
- Savitsky, D., "Hydrodynamic Design of Planing Hulls", Marine Technologies, 1(4), pp.71~95 (1964)
- Lewandowski, E. M., "Transverse Dynamic Stability of Planing Craft", Marine Technology, 34(2), pp.109~118 (1997)
- Yoon, H. K., "Identification of Four-DOF Dynamics of a RIB Using Sea Trial Tests", Journal of the Society of Naval Architects of Korea, 43(1), pp.63~68 (2006)
- Yoon, H. K., "Motion Analysis of 20ft Semi-planing Power Boat Using Sea Trial Test", Vol. 23-24, pp.569~578 (2014), Internaitonal Symposium on Naval Architecture and Maritime, Istanbul, Turkey
- Karimi, M. H., "A Study on Vertical Motions of High-speed Planing Boats with Automatically Controlled Stern Interceptors in Calm Water and Head Waves", Ships and Offshore Structure, 10(3), pp.335~348 (2015)
- Koelbel, J. G., "Performance Prediction", , Small Craft Engineering Resistance, Propulsion and Sea Keeping, SNAK (1978)
- Kihara, K., "A New Method of Initial Design for High Speed Craft(2)", Trans. of WJSNA, 72, pp.293~300 (1986)
- Jeong, U. C., "Initial Hull Form Design of High-Speed Leisure Boat", Journal of the Korean Society of Mechanical Technology, 9(2), pp.25~30 (2007)