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Influence of centrebow on motions and loads of high-speed catamarans


Matsubara, S and Thomas, G and Davis, MR and Holloway, DS and Roberts, T, Influence of centrebow on motions and loads of high-speed catamarans, Proceedings of the 11th International Conference on Fast Sea Transportation (FAST 2011), 26-29 September 2011, Honolulu, Hawaii, pp. 661-668. ISBN 978-0-9850660-0-0 (2011) [Refereed Conference Paper]

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Copyright 2011 American Society of Naval Engineers ( ASNE )

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Knowledge of the magnitude of expected sea loads, particularly slam loads, is a critical component of optimising the structure of large high-speed vessels. Of vital importance is an inderstanding of the vessel motions since they will directly influence the loads and also the comfort of the passengers and crew.

A segmented model of a wave-piercing catamaran has been designed and constructed to obtain experimental values of global motions and loads. Results are presented for the motions, global wave loads and slam loads, with a particular focus on the influence of the centrebow configuration. The motions were found to be distinctly non-linear with respect to wave height; this was due to the immersion of the centrebow in larger waves tending to reduce the heave and pitch motions. The wave loads were found to be dominated by the slam load on the centrebow, varying in magnitude and location with respect to wave conditions.

Item Details

Item Type:Refereed Conference Paper
Keywords:wave-piercer catamaran, centrebow, hydroelastic segmented model, ship motions, wave-induced loads
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Naval architecture
Objective Division:Transport
Objective Group:Water transport
Objective Field:Domestic passenger water transport (e.g. ferries)
UTAS Author:Matsubara, S (Dr Shinsuke Matsubara)
UTAS Author:Thomas, G (Professor Giles Thomas)
UTAS Author:Davis, MR (Professor Michael Davis)
UTAS Author:Holloway, DS (Associate Professor Damien Holloway)
ID Code:75839
Year Published:2011
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2012-02-17
Last Modified:2014-08-13
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