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Estimation of Parametric Roll in Random Seaways
2011This chapter attempts to provide a guideline for quantifying the magnitude of parametric roll of a ship in irregular seaways. First, in the light of physical model experiments with a scaled ship model in irregular water waves, it is shown that parametric roll of this ship model is a practically nonergodic process.
Naoya Umeda +3 more
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ALGORITHM FOR ESTIMATING THE PARAMETRIC ROLL MOTIONS
International Journal of Modern Manufacturing TechnologiesFor a ship, both synchronous and parametric roll motions can be modelled by nonlinear second-order differential equations with the roll angle as dependent variable and the nonlinearities coming from the damping and restoring moments. In the absence of exact solution techniques, approximate solutions for such equations can be obtained, in principle ...
Dumitru Deleanu +1 more
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, 2009 Probability of Parametric Roll in Random Seaways
2011The aim of the present chapter is to advocate for a very effective stochastic procedure based on the First-Order Reliability method (FORM) and Monte Carlo simulations (MCS), for prediction of parametric rolling in stationary stochastic seaways. Due to efficient optimization procedures implemented in standard FORM codes and the short duration of the ...
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The estimation methods for parametric rolling prediction
2009This paper focuses on explaining the phenomenon of parametric roll resonance with the emphasis on the physics that governs such a motion. It reviews the various approaches adopted to represent that effect, including models with 1, 1.5, 3 and 6 degress of freedom (DOF).
Turk Anton +3 more
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Synchronous Rolling and Parametric Rolling of Ships
2006C.B. Barrass, Captain D.R. Derrett
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On the Nonlinear Modelling of Parametric Rolling in Regular and Irregular Waves
2003This paper summarizes the results and the problems still open regarding the development of a 1.5DOF nonlinear mathematical model of the parametric rolling in longitudinal waves with particular regard to the head sea condition. A first part is devoted to the case of regular waves, while the second concerns parametric rolling generated by irregular waves
BULIAN, GABRIELE +2 more
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Research on the parametric rolling of the KCS container ship
Journal of Marine Science and Technology, 2023Yadong Liu, Yanping He, Yu-Ying Tang
exaly