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Ship motions during replenishment at sea operations in head seas
Citation
Thomas, G and Turner, T and Andrewartha, T and Morris, B, Ship motions during replenishment at sea operations in head seas, International Journal of Maritime Engineering, 152, (4) pp. A181-A196. ISSN 1479-8751 (2010) [Refereed Article]
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Copyright Statement
Copyright © RINA 2011
Official URL: http://www.rina.org.uk/index.html
DOI: doi:10.3940/rina.2010.a4.194
Abstract
During replenishment at sea operations the interaction between the two vessels travelling side by side can cause significant motions in the smaller vessel and affect the relative separation between their replenishment points. A study into these motions has been conducted including theoretical predictions and model experiments. The model tests investigated the influence of supply ship displacement and longitudinal separation on the ships' motions. The data obtained from the experimental study has been used to validate a theoretical ship motion prediction method based on a 3-D zero-speed Green function with a forward speed correction in the frequency domain. The results were also used to estimate the expected extreme roll angle of the receiving vessel, and the relative motion between the vessels, during replenishment at sea operations in a typical irregular seaway. A significant increase in the frigate's roll response was found to occur with an increase of the supply ship displacement, whilst a reduction in motion for the receiving vessel resulted from an increase in longitudinal separation between the vessels. It is proposed that to determine the optimal vessel separation it is vital that the motions of the vessels are not considered in isolation and all motions need to be considered for both vessels simultaneously. ©2010: The Royal Institution of Naval Architects.
Item Details
Item Type: | Refereed Article |
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Keywords: | Ship Motions During Replenishment at Sea Operations in Head Seas |
Research Division: | Engineering |
Research Group: | Maritime engineering |
Research Field: | Ship and platform structures (incl. maritime hydrodynamics) |
Objective Division: | Defence |
Objective Group: | Defence |
Objective Field: | Maritime |
UTAS Author: | Thomas, G (Professor Giles Thomas) |
ID Code: | 66872 |
Year Published: | 2010 |
Web of Science® Times Cited: | 2 |
Deposited By: | NC Maritime Engineering and Hydrodynamics |
Deposited On: | 2011-02-16 |
Last Modified: | 2012-03-06 |
Downloads: | 4 View Download Statistics |
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