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Evaluation of finite element analysis as a tool to predict sea loads with the aid of trials data


Amin, WAI and Davis, MR and Thomas, GA, Evaluation of finite element analysis as a tool to predict sea loads with the aid of trials data, 8th Symposium on High Speed Marine Vehicles (HSMV 2008), 21 - 23 May 2008, Naples, pp. 1-12. ISBN 9781605604602 (2008) [Refereed Conference Paper]

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Copyright © RINA 2008

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The current study evaluates the using of finite element modelling as a tool to predict sea loads for high-speed wave piercing catamarans based on sea trials data. The current sea trials data is for HSV-2 Swift; a 98 meter Incat Seaframe designed by Revolution Design and configured to U.S. Navy specification. The ship was instrumented with a system of sensors and data acquisition system to monitor structural response, ship motions, performance, and sea conditions. A detailed finite element model of a similar vessel was modified to represent the existing ship configuration. A new methodology is presented to investigate sea loads during trials, and the results from the FE analysis are compared to trials data. It was found that a direct comparison of strain time histories of trial and finite element analysis, was hard to achieve. However, the FE RMS strains are in good agreement with trials RMS strains and approached a correlation coefficient of 95.5% for perfect heads seas condition and 80.2% for head seas with a slight loading asymmetry.

Item Details

Item Type:Refereed Conference Paper
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ship and platform structures (incl. maritime hydrodynamics)
Objective Division:Transport
Objective Group:Water transport
Objective Field:International sea freight transport (excl. live animals, food products and liquefied gas)
UTAS Author:Amin, WAI (Dr Walid Amin)
UTAS Author:Davis, MR (Professor Michael Davis)
UTAS Author:Thomas, GA (Professor Giles Thomas)
ID Code:53954
Year Published:2008
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2009-02-02
Last Modified:2014-12-19

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