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An experimental study of ship motions during replenishment at sea operations between a supply vessel and a landing helicopter dock

Citation

Mathew, J and Sgarioto, D and Duffy, J and Macfarlane, G and Denehy, S and Norman, J and Cameron, A and Eutick, N and van Walree, F, An experimental study of ship motions during replenishment at sea operations between a supply vessel and a landing helicopter dock, International Journal of Maritime Engineering, 160, (A2) pp. 97-108. ISSN 1479-8751 (2018) [Refereed Article]


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Copyright Statement

2018: The Royal Institution of Naval Architects

Official URL: https://www.rina.org.uk/IJME_427.html

DOI: doi:10.3940/rina.ijme.2018.a2.427

Abstract

Hydrodynamic interactions during Replenishment at Sea (RAS) operations can lead to large ship motions and make it difficult for vessels to maintain station during the operation. A research program has been established which aims to validate numerical seakeeping tools to enable the development of enhanced operator guidance for RAS. This paper presents analysis of the first phase of scale model experiments and focuses on the influence that both the lateral and longitudinal separations between two vessels have on the interactions during RAS. The experiments are conducted in regular head seas on a Landing Helicopter Dock (LHD) and a Supply Vessel (SV) in intermediate water depth. The SV is shorter than the LHD by approximately 17%, but due to its larger block coefficient, it displaces almost 16% more than the LHD. Generally, the motions of the SV were larger than the LHD. It was found that hydrodynamic interactions can lead to large SV roll motions in head seas. Directions for future work are provided.

Item Details

Item Type:Refereed Article
Keywords:replenishment at sea, ship interaction, model scale experiment
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Ship and Platform Hydrodynamics
Objective Division:Defence
Objective Group:Defence
Objective Field:Navy
UTAS Author:Duffy, J (Dr Jonathan Duffy)
UTAS Author:Macfarlane, G (Associate Professor Gregor MacFarlane)
UTAS Author:Denehy, S (Mr Shaun Denehy)
UTAS Author:Norman, J (Mr Jaikob Norman)
UTAS Author:Cameron, A (Mr Andrew Cameron)
UTAS Author:Eutick, N (Mr Nick Eutick)
ID Code:126828
Year Published:2018
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2018-06-26
Last Modified:2018-11-26
Downloads:9 View Download Statistics

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