Publicações

Turk, A., Prpić-Oršić, J. e Guedes Soares, C. (2013), “Parametric rolling simulations of container ships”, Proceedings of the 32nd International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2013), 9-14 Junho, Nantes, França

A hybrid nonlinear time domain seakeeping analysis is applied to the study of a container ship advancing at different headings and encounter frequencies. A time-domain nonlinear strip theory in six degrees-of-freedom has been extended to predict ship motions by solving the unsteady hydrodynamic problem in the frequency domain and the equations of motion in the time domain which allows introducing nonlinearities in the linear model. The code is used to make parametric roll predictions for various speeds and headings and the results are summarized in a very intuitive 2D and 3D polar plots showing the full range of the parametric rolling realizations. The method developed is fairly accurate, robust, very computationally efficient, and can predict nonlinear ship motions. It is well suited to be used as a tool in ship design or as part of a path optimization model.

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