선체 변형 근사곡선을 이용한 추진축계 정렬의 유연성 평가
The Flexibility Estimation of Alignment for Propulsion Shaft System using the Approximated Hull Deflection Curve
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초록
In this paper, based on the measured data of hull deflection, an approximated hull deflection curve is drawn using reverse analyzed hull deflection data and the estimation method for flexibility analysis of shaft alignment is proposed by use of the approximate hull deflection curve. Generally an offset value of after stern tube bearing is a datum point with an fore stern tube bearing however the shaft alignment has a tendency which is able to get higher flexibility if the shafting system has the deflection value from after stern tube bearing as reference to bottom direction according to results of on this study. By applying this result of study, the shaft alignment for next similar ships will be able to estimate how to follow the hull deflection and how to be influenced by hull deflection at shaft alignment analysis state using the approximated hull deflection curve.
Abstract
In this paper, based on the measured data of hull deflection, an approximated hull deflection curve is drawn using reverse analyzed hull deflection data and the estimation method for flexibility analysis of shaft alignment is proposed by use of the approximate hull deflection curve. Generally an offset value of after stern tube bearing is a datum point with an fore stern tube bearing however the shaft alignment has a tendency which is able to get higher flexibility if the shafting system has the deflection value from after stern tube bearing as reference to bottom direction according to results of on this study. By applying this result of study, the shaft alignment for next similar ships will be able to estimate how to follow the hull deflection and how to be influenced by hull deflection at shaft alignment analysis state using the approximated hull deflection curve.
참고문헌 (13)
- 전효중, "마트릭스계산에 의한 추진기축계배치의 계산에 관한 연구", 한국해양대학교 논문집, 13 (1978)
- 전효중, "동력전달장치", pp.283~284 (1986), 태화출판사
- 이용진, "살물선 축계의 굽힘모멘트와 베어링 반력을 이용한 선체 변형 해석", 한국마린엔지니어링학회 후기학술대회 논문집, pp.5~6 (2005)
- 문덕홍, "삼연모먼트정리의 매트릭스계산에 의한 박용추진축계 배치계산에 관한 연구", 한국기관학회지, 5(1) (1981)
- 전효중, "유한요소법에 의한 박용기관축계장치의 최적배치에 관한 연구", 한국박용기관학회지, 2(1) (1978)
- Yong-Jin Lee, "A Study on Hull Deflection and Shaft Alignment Interaction in VLCC", 한국마린엔지니어링학회지, 29(7), pp.785~794 (2005), 한국마린엔지니어링학회
- Holger Mumm, "The Need for a More Considered Design Approach to Engine-Hull Interaction. in : Ship Propulsion Systems 2002", pp.1~15 (2002), Germanischer Lloyd
- "American Bureau of Shipping, “Guidance Notes on Propulsion Shafting Alignment”, April 2004", ~
- Davor Sverko, "Hull Deflections Shaft Alignment Interaction, a Case Study", Proceedings of the 7th International Symposium on Marine Engineering (2005)
- Davor Sverko, "Investigation on Hull Deflection and Its Influence on Propulsion Shaft Alignment", SMTC&E (2005)
- Davor Sverko, "Shaft Alignment Optimization with Genetic Algorithms", SNAME Propellers and Shafting 2003 Symposium (2003)
- Davor Sverko, "Hull Deflections Shaft Alignment Interaction, a Case Study", Proceedings of the 7th International Symposium on Marine Engineering (2005)
- Davor Sverko, "Investigation on Hull Deflection and Its Influence on Propulsion Shaft Alignment", SMTC& E (2005)