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http://dx.doi.org/10.1016/j.ijnaoe.2020.11.003

Experimental investigation of towing- and course-stability of a FPSO towed by a tug-boat with lateral motion  

Park, Seung Hyeon (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Lee, Seung Jae (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Lee, Sungwook (Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Publication Information
International Journal of Naval Architecture and Ocean Engineering / v.13, no.1, 2021 , pp. 12-23 More about this Journal
Abstract
In the conventional experiment to assess the towing operations, the towing stability of the towed vessel has been evaluated under the condition without lateral motion of the tug-boat. However, the tug-boats may have a lateral force to change the direction of the towed vessel. In this study, experiments have been conducted considering unsteady conditions in the towing system. First, a towing test system in a Circular Water Channel (CWC) using the conventional experimental method is built. Second, the towing characteristics of the towed vessel are investigated using the conventional method, and they are compared with other research results and stability discriminant criteria. Third, the lateral motion of the tug-boat was modeled as a sinusoidal motion using a forced oscillation device changing frequency and amplitude. Finally, the discussion is given in terms of both towing- and course-stability of the towed vessel according to the lateral motion of the tug-boat.
Keywords
Towing stability; Course stability; Fishtailing motion; Towing characteristics;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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