A cross-spectral method for the combination of wave induced dynamic loads

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  2. Emmanuel Alfred Mohammed
  3. Dr Hoi-sang Chan
  4. Dr Jonathan Downes
Author(s)Alfred-Mohammed E, Chan HS, Hirdaris SE, Downes J
Editor(s)
Publication type Conference Proceedings (inc. Abstract)
Conference NameWilliam Froude Conference: Advances in Theorectical and Applied Hydrodynamics - Past and Future
Conference LocationPortsmouth, UK
Year of Conference2010
DateNovember 2010
Volume
Pages
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Ships are subject to wave induced loads that are stochastic in nature. Due to the uncertainties of hydrodynamic actions the use of probabilistic methodologies and their stochastic combinations is deemed necessary for the estimation of the effects on hull girder response. The aim of this paper is to present the basis of a cross-spectral formulation that could be used to assess the combined effects of wave loads on hull girder strength. The methodology accounts for long term probability distributions and considers phase relationships between narrow banded load processes.