|Publisher DOI:||10.1177/0954406211414523||Title:||Probabilistic approach to large amplitude ship rolling in random seas||Language:||English||Authors:||Dostal, Leo
|Keywords:||ship dynamics;random seaway;non-linear stochastic processes;parametric excitation||Issue Date:||30-Sep-2011||Source:||Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 10 (225): 2464-2476 (2011)||Journal or Series Name:||Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science||Abstract (english):||For a vessel in open seas, the sudden indirect excitation of roll motions due to waves from the front or rear leads to dangerous situations, sometimes even capsizing. We derive a general non-linear model, which is appropriate for the analysis of parametric excited roll motions in head or following random seas. The irregular waves are modelled in terms of a continuous time autoregressive moving average process. The resulting model of stochastic differential equations is investigated numerically by Local Statistical Linearization. The necessary stochastic moments and their derivatives are computed using Itoˆ’s differential rule and Gaussian closure.||URI:||http://tubdok.tub.tuhh.de/handle/11420/1562||DOI:||10.15480/882.1559||ISSN:||0954-4062||Institute:||Mechanik und Meerestechnik M-13||Type:||(wissenschaftlicher) Artikel||Permission Note:||Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.||License:||In Copyright|
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