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The influence of hull form on the motions of high speed vessels in head seas

Citation

Davis, MR and Holloway, DS, The influence of hull form on the motions of high speed vessels in head seas, Ocean Engineering, 30, (16) pp. 2091-2115. ISSN 0029-8018 (2003) [Refereed Article]

DOI: doi:10.1016/S0029-8018(03)00045-3

Abstract

Prediction of ship motions at high Froude number is carried out using a time domain strip theory in which the unsteady hydrodynamic problem is treated in terms of the motion of fixed strips of the water as hull sections pass through it. The Green function solution is described and the integration of the ship motion carried out by an averaging method to ensure stability of the solution. The method is validated by comparison with tank data for conventional slender hulls suitable for catamarans, small water area twin hull (SWATH) forms and hulls suitable for high-speed monohulls. Motion computations are then carried out for 14 designs with an operating speed of 40 kts and a displacement of 1000 tonnes. The vessels are assumed not to be fitted with motion control systems for the purposes of this comparative study. Motion sickness incidence is predicted to rise to between 42 and 72% depending upon the hull design in 3 m head seas of average period 7.5 s. MSI values reduce in smaller seas with a shorter average period to be less than 15% in all cases in 1m seas with an average period of 5.5 s. © 2003 Elsevier Ltd. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Ship and Platform Hydrodynamics
Objective Division:Transport
Objective Group:Water Transport
Objective Field:Water Safety
Author:Davis, MR (Professor Michael Davis)
Author:Holloway, DS (Dr Damien Holloway)
ID Code:28356
Year Published:2003
Web of Science® Times Cited:12
Deposited By:Engineering
Deposited On:2003-08-01
Last Modified:2004-04-05
Downloads:0

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