Parametric roll due to hull instantaneous volumetric changes and speed variations

Publication: Research - peer-reviewJournal article – Annual report year: 2009

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Parametric roll of a containership in head sea condition has been studied in the paper. A time domain routine for GZ righting arm calculation based on exact underwater hull geometry has been implemented into a two-degree-of-freedom procedure for roll response calculation. The speed variation due to e.g. added resistance has been accounted for in the model by the surge velocity. The ship roll motion due to a regular wave critical for parametric roll occurrence has been simulated, as well as the ship roll response in a severe stochastic sea. The present method has been compared with other existing methods for parametric roll prediction.
Original languageEnglish
JournalOcean Engineering
Publication date2009
Volume36
Journal number12-13
Pages891-899
ISSN0029-8018
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 3

Keywords

  • Parametric roll, Instantaneous GZ value, Surge velocity
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