Nonlinear container ship model for the study of parametric roll resonance

Holden, Christian and Galeazzi, Roberto and Rodríguez, Claudio and Perez, Tristan and Fossen, Thor I. and Blanke, Mogens and De Almeida Santos Neves, Marcelo (2007) Nonlinear container ship model for the study of parametric roll resonance. Modeling, Identification and Control, 28 (4). pp. 87-103. ISSN 0332-7353 (https://doi.org/10.4173/mic.2007.4.1)

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Abstract

Parametric roll is a critical phenomenon for ships, whose onset may cause roll oscillations up to 40 , leading to very dangerous situations and possibly capsizing. Container ships have been shown to be particularly prone to parametric roll resonance when they are sailing in moderate to heavy head seas. A Matlab/Simulinkr parametric roll benchmark model for a large container ship has been implemented and validated against a wide set of experimental data. The model is a part of a Matlab/Simulink Toolbox (MSS, 2007). The benchmark implements a 3rd-order nonlinear model where the dynamics of roll is strongly coupled with the heave and pitch dynamics. The implemented model has shown good accuracy in predicting the container ship motions, both in the vertical plane and in the transversal one. Parametric roll has been reproduced for all the data sets in which it happened, and the model provides realistic results which are in good agreement with the model tank experiments.

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