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http://dx.doi.org/10.7837/kosomes.2021.27.7.1082

Effect of Propeller Eccentric Thrust Change on Propusion Shafting System  

Lee, Ji-woong (Division of Marine System Engineering, Korea Maritime and Ocean University)
Lee, Jae-ung (Division of Marine System Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.27, no.7, 2021 , pp. 1082-1087 More about this Journal
Abstract
The propeller shaft has different pattern of behaviors at each static, dynamic, and transient condition to a ship shaft system due to the effects of propeller weight and eccentric thrust, which increases the potential risk of bearing failure by causing local load variations. To prevent this, the various research of the shafting system has been conducted with the emphasis on optimizing the relative slope and oil film retention between propeller shaft and stern tube bearing at quasi-static condition, mainly with respect to the Rules for the Classification of Steel Ships. However, to guarantee a stability of the shafting system, it is necessary to consider the dynamic condition including the transient state due to the sudden change in the stern wakefield during rudder turn. In this context, this study cross-validated the ef ect of propeller shaft behavior on the stern tube bearing during port turn operation, which is a typical transient condition, by using the strain gauge method and displacement sensor for 50,000 DWT medium class tanker. And it was confirmed that the propeller eccentric thrust change showing relief the load of the stern tube bearing.
Keywords
Shafting system; Propeller shaft behavior; Transient condition; Strain gauge; Displacement sensor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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