Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
권호 표지

Hull Deflections Affecting on the Ship's Propulsion Shafting Alignment in 46K Oil/Chemical Carrier

  • Published : 2006.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

This paper introduces the hull deflection analysis method by using the direct measurements. Accordingly, this paper demonstrates how the hull deflection data is obtained by the reverse calculations using the bending moments from the stain gauge and bearing reactions from jack-up method. Where the hull deflection data provided by this research is used for the shafting alignment calculations for identical or similar vessels, shafting failures due to hull deflections can be minimized. It will also save time and expenses associated finite element method to predict hull deflections.

Keywords

References

  1. Davor Sverko, 'Design Concerns in Propulsion Shafting Alignment', Proceedings of the ICMES Conference 2003, Helsinki, May 2003
  2. Davor Sverko, 'Investigation on Hull Deflection and Its Influence on Propulsion Shaft Alignment', SMTC &E; October 2005 - Houston
  3. Holger Mumm, 'The Need for a More Considered Design Approach to Engine-Hull Interaction' Germanischer Lloyd, Ship Propulsion Systems 2002
  4. American Bureau of Shipping, 'Guidance Notes on Propulsion Shafting Alignment', April 2004
  5. Kvamsdal, R. 'Shaft Alignment Control by Means of the Strain Gauge(Bending Moment) Technique', Det Norske Veritas, Research Dept. Report 68-19-M(1968), pp. 11
  6. Forrest, A. W. and Labasky, R. F., 'Shaft Alignment Using Strain Gauges', Marine Technology, Vol. 18. No.3. July 1981, pp. 276-284
  7. M. N. Keshava Rao and M.V. Dharaneepathy, 'Computer-Aided Alignment of Ship Propulsion Shafts by Strain Gauge Methods', Marine Technology, Vol. 28. No. 2. March 1991, pp. 84-90
  8. K.S. Kim, W.S. Jang, 'A Study on Shaft Alignment of the Rotating Machinery by Using Strain Gauges', Journal of the Korean Society of Precision Engineering Marine Technology, Vol. 18. No.5. May 2002
  9. Davor Sverko, 'Shaft Alignment Optimization with Genetic Algorithms', SNAME Propellers and Shafting 2003 Symposium, Virgina Beach, October 2003
  10. Novkovic, S. and Sverko D. (2003): 'A Genetic Algorithm with Self-Generated Random Parameters', Journal of Computing and Information Technology, 11, 4:271-283 https://doi.org/10.2498/cit.2003.04.02