University of Tasmania
Browse

File(s) under permanent embargo

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

journal contribution
posted on 2023-05-19, 19:06 authored by Mathew, J, Sgarioto, D, Jonathan DuffyJonathan Duffy, Gregor MacFarlaneGregor MacFarlane, Shaun DenehyShaun Denehy, Norman, J, Cameron, A, Eutick, N, van Walree, F
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.

Funding

Defence Science and Technology Group

History

Publication title

International Journal of Maritime Engineering

Volume

160

Issue

A2

Pagination

97-108

ISSN

1479-8751

Department/School

Australian Maritime College

Publisher

The Royal Institution of Naval Architects

Place of publication

United Kingdom

Rights statement

©2018: The Royal Institution of Naval Architects

Repository Status

  • Restricted

Socio-economic Objectives

Maritime

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC