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논문 기본 정보

자료유형
학술저널
저자정보
Yang-Gon Kim (Korean Register) Kwon-Hae Cho (Korea Maritime and Ocean University) Ue-Kan Kim (Korea Maritime and Ocean University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제41권 제5호
발행연도
2017.6
수록면
418 - 423 (6page)
DOI
10.5916/jkosme.2017.41.5.418

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초록· 키워드

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The ultra-long stroke engine (G-type) was developed to generate greater power at lower speeds than previous designs, such as the super long stroke engine (S-type). The new design was intended to improve propulsion efficiency by adopting a higher stroke bore ratio and larger diameter propeller turning at lower speed. In recent cases, however, eco-ships have experienced problems with not passing quickly through the critical speed within the overall range of operating speeds.
This study reviewed the vibration characteristics of a propulsion shafting system installed in eco-ships with G-type engines to determined proper measures for avoiding fatigue fracture of the shafts. Examples of propulsion shafting design for several types of vessels were considered based on a detailed method for shaft fatigue estimation, and the results were compared with those of existing simplified methods such as IACS UR M68 and optimum damper design theory.

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Abstract
1. Introduction
2. Engine acceleration problem in Eco-ships
3. Shaft fatigue life assessment methods
4. Case study of shaft fatigue life assessment for eco-ships with engine acceleration problems
5. Conclusions
References

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