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Prediction of parametric roll resonance in longitudinal regular waves using a non-linear method

Record type: Conference or Workshop Item (Paper)

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.

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Citation

Ahmed, T.M., Hudson, D.A., Temarel, P. and Ballard, E.J. (2006) 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. 8 pp.

More information

Published date: November 2006
Venue - Dates: Proceedings of the 9th International Conference on Stability of Ships and Ocean Vehicles (STAB2006), 2006-09-25 - 2006-09-29
Keywords: parametric roll resonance, longitudinal regular waves, non-linear, time-domain
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 42354
URI: http://eprints.soton.ac.uk/id/eprint/42354
PURE UUID: fed223c6-74b5-486e-8e3d-652399fd3ac4
ORCID for D.A. Hudson: ORCID iD orcid.org/0000-0002-2012-6255
ORCID for P. Temarel: ORCID iD orcid.org/0000-0003-2921-1242

Catalogue record

Date deposited: 30 Nov 2006
Last modified: 17 Jul 2017 15:22

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