Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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The Flexibility Estimation of Alignment for Propulsion Shaft System using the Approximated Hull Deflection Curve

선체 변형 근사곡선을 이용한 추진축계 정렬의 유연성 평가

  • 선진석 (한국해양대학교 대학원 기계공학과) ;
  • 이용진 (ABS선급) ;
  • 김의간 (한국해양대학교 공과대학 기계정보공학부)
  • Published : 2009.01.31
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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.

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References

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