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http://dx.doi.org/10.3744/SNAK.2010.47.3.438

A Study on Evaluation Method of Member Forces on the Propulsion Shaft of Ship for Damage Protection of Clutch  

Shin, Sang-Hoon (Hyundai Maritime Research Institute, Hyundai Heavy Industries Co., Ltd.)
Choe, Ick-Hung (Hyundai Maritime Research Institute, Hyundai Heavy Industries Co., Ltd.)
Ko, Dae-Eun (Department of Naval Architecture and Ocean Engineering, Dong-Eui University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.47, no.3, 2010 , pp. 438-446 More about this Journal
Abstract
The purpose of this study is to establish the proper evaluation method of member forces on the propulsion shaft using strain gages to confirm bearing offset. The strain measurements to find out the bending moments of the shaft have been performed in the yard to be compared with the results of the shaft alignment analysis. The clutch of the propulsion shaft is highly sensitive to shear forces as well as bending moments and the necessity of the measurement of shear forces on the shaft for normal operation of the clutch is recently on the rise. In this study, an evaluation method of the member forces (bending moments and shear forces) of the shaft clutch based on the shaft strain measurement is established. Through the application of this method to the eight $216,000\;m^3$ LNG carriers, the safeties of the clutch systems are evaluated and the better bearing offsets are deduced for the LNG carriers. After adjusting the bearing offsets, all the sea trials of the eight LNG carriers are successfully carried out without any troubles.
Keywords
Propulsion shaft; Bearing offset; Shaft alignment; Clutch; Strain measurement; Sea trials;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 BV, 2009, Rules for the Classification of SteelShips, Part C, Chapter 1, Section 7.
2 Choung, J.M. Choe, I.H. and Shin, S.H., 2005,"A Study on Elastic Shaft Alignment UsingNonlinear Bearing Elements," Journal of theSociety of Naval Architects of Korea, Vol. 42,No. 3, pp. 259-267.   DOI   ScienceOn
3 DNV, 2008, Rules for Classification ofShips/High Speed, Light Craft and NavalSurface Craft, Part 4, Chapter 4, Section 1.
4 Kim, K.S., Kwon, Y.J., Kang, J.K., Ok, Y.K.and Kwon, S.C., 2002, "Development ofBearing Reaction Force Measurement SystemUsing Strain Gage for Propeller Shaft,"Proceedings of the Annual Autumn Meeting,SNAK, pp. 413-416.
5 Shin, J.R. and Heo, J.H., 2002, "Hull DeformationEffect on Propulsion Shaft System,"Proceedings of the Annual Autumn Meeting,SNAK, pp. 428-431.
6 Shin, S.H. and Choe, I.H., 2004, "PressureDistribution Analysis for After Bush Bearing ofShip Propulsion Shaft," Journal of the Society ofNaval Architects of Korea, Vol. 41, No. 3, pp.35-40.   과학기술학회마을   DOI   ScienceOn