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The effect of berthed ship bow and stern blockage on berthed ship - passing ship interaction

Citation

Denehy, S and Duffy, JT and Ranmuthugala, D and Renilson, MR, The effect of berthed ship bow and stern blockage on berthed ship - passing ship interaction, Proceedings of the Coast and Ports 2013 Conference, 11-13 September, Manly, NSW, pp. 1-6. ISBN 978-1-9221-070-53 (2013) [Refereed Conference Paper]


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Copyright Statement

Copyright 2013 the Authors

Official URL: http://www.coastsandports2013.com.au/index.html

Abstract

It is known that when a ship passes a berthed ship it causes hydrodynamic interactions which can result in the berthed ship ranging on its moorings. To date, most investigations into this problem have assumed that the berthed ship is in relatively open water, with only a few cases reported where the presence of the wharf, bank or other blockage is considered.

This paper gives a selection of results from physical scale model experiments of berthed and passing ship interaction for different berthed ship bow and stern blockage arrangements. The time domain results are compared to assess the change in form and magnitude of the interaction forces and moment due to the additional blockage. The time domain results are also compared to published idealised curves scaled using empirical formulae which were developed for open water conditions to determine whether the idealised empirical time domain results can accurately represent the interaction forces and moment for the cases presented.

The experimental and idealised empirical time domain results were used as input to a numerical simulation software package to predict the motions experienced by the berthed ship due to a passing ship for a selected mooring arrangement.

The results demonstrate that bow and stern blockage around a berthed ship can significantly influence both the form and magnitude of the interaction forces and moments and hence can significantly modify the predicted motion and mooring loads of the berthed ship, which is not accounted for in the idealised empirical prediction in the time domain.

Item Details

Item Type:Refereed Conference Paper
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Naval Architecture
Objective Division:Transport
Objective Group:Water Transport
Objective Field:Water Transport not elsewhere classified
Author:Denehy, S (Mr Shaun Denehy)
Author:Duffy, JT (Dr Jonathan Duffy)
Author:Ranmuthugala, D (Professor Dev Ranmuthugala)
Author:Renilson, MR (Professor Martin Renilson)
ID Code:86437
Year Published:2013
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2013-09-16
Last Modified:2018-03-28
Downloads:3 View Download Statistics

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