The paper presents some background for an analysis of the risk of severe parametric roll motion for a ship operating in head seas. This background includes a consideration of basic probabilistic qualities of parametric roll in head seas: ergodic qualities and distributions, since these results are necessary to establish a method of prediction of extreme values. The ship motions that influence on parametric roll, heave and pitch, have also been studied in this analysis. The post-Panamax C11 class container carrier was chosen for analysis, since a vessel of this type is known to have suffered significant damage in an incident attributed to severe parametric roll. It was shown that despite large-amplitude of motion, pitch and heave retain their ergodic qualities and normal character of distribution, while the roll motions are clearly non-ergodic and do not have a normal distribution. The analysis is built upon the numerical simulation of ship motion in head seas using Large Amplitude Motion Program (LAMP). © Springer Science+Business Media B.V. 2011.
CITATION STYLE
Belenky, V. L., Weems, K. M., Lin, W. M., & Paulling, J. R. (2011). Probabilistic analysis of roll parametric resonance in head seas. Fluid Mechanics and Its Applications, 97, 555–569. https://doi.org/10.1007/978-94-007-1482-3_31
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