Ahmed, T.M., Hudson, D.A., Temarel, P. and Ballard, E.J.
Prediction of parametric roll resonance in longitudinal regular waves using a non-linear method
At Proceedings of the 9th International Conference on Stability of Ships and Ocean Vehicles (STAB2006).
25 - 29 Sep 2006.
Full text not available from this repository.
In this paper, two non-linear, time-domain methods are proposed for the prediction of parametric roll resonance in longitudinal regular waves. Using a two-dimensional approach, periodic changes in the underwater hull geometry due to heave, pitch and the wave passage are calculated as a first order function of the local breadth and flare at the waterline in Method (I), and as a higher order function of the local instantaneous breadth in Method (II). The 1-DoF uncoupled equation of motion in roll –with parametric excitation terms- is then solved in the time-domain in the absence of an external roll excitation. Non-linearities in the roll damping and restoring terms are accounted for. The two methods have been applied to a post-Panamax C11 class containership, travelling in longitudinal regular waves. Obtained results demonstrate that the numerical methods have succeeded in producing results similar to those available in the open literature. Limitations of the methods used are discussed.
Conference or Workshop Item
|Venue - Dates:
||Proceedings of the 9th International Conference on Stability of Ships and Ocean Vehicles (STAB2006), 2006-09-25 - 2006-09-29
||parametric roll resonance, longitudinal regular waves, non-linear, time-domain
||Fluid Structure Interactions Group
||30 Nov 2006
||16 Apr 2017 18:53
|Further Information:||Google Scholar|
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