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| The importance of the form of time domain forces and moments on berthed ship interaction Duffy, J.T.; Renilson, M.R. (2011). The importance of the form of time domain forces and moments on berthed ship interaction, in: Pettersen, B. et al. (Ed.) 2nd International Conference on Ship Manoeuvring in Shallow and Confined Water: Ship to Ship Interaction, May 18 - 20, 2011, Trondheim, Norway. pp. 107-116
In: Pettersen, B. et al. (2011). 2nd International Conference on Ship Manoeuvring in Shallow and Confined Water: Ship to Ship Interaction, May 18 - 20, 2011, Trondheim, Norway. Flanders Hydraulics Research/Ghent University/Norwegian Marine Technology Research Institute/Norwegian University of Science and Technology (NTNU)/The Royal Institute of Naval Architects: London. ISBN 978-1-905040-83-4. X, 422 pp., meer
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| Documenttype: Congresbijdrage | |
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| Abstract |
•To quantify the influence of waterway geometry on the magnitude of the peaks and the form of the time domain interaction forces and moments; •To quantify the influence of the form of the interaction forces and moments on berthed ship motions and mooring line loads. The second aim was considered important, as in the past the peak values of the forces and moments were used, together with the assumption of an idealised form of the interaction forces, to predict the motions, and hence loads on the mooring lines. It was felt necessary to verify this assumption, particularly for a range of different waterway geometries. Results were obtained from model scale experiments conducted in the Towing Tank at the Australian Maritime College to measure the time domain interaction forces and moments on a berthed ship due to a passing ship for different waterway geometries. The measured time domain interaction forces and moments are presented for three different channel geometries. The influence of the different channel geometries on the magnitude of the peaks and the form of the interaction forces and moments has been quantified. The interaction forces and moments were used as input to a time domain numerical simulation model to predict berthed ship motions and mooring line loads. The influence of the form of the interaction forces and moments on the maximum berthed ship motions and maximum mooring line loads has been quantified for a typical mooring arrangement. From this the key features of the form of the forces and moments in the time domain was obtained, and the applicability of using an open water idealised form for cases with different channel widths and near bank geometries has been assessed. |
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