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Publicações
Rajendran, S., Fonseca, N., Guedes Soares, C., Clauss, G.F. e Klein, M., (2011), “Time Domain Comparison with Experiments for Ship Motions and Structural Loads of a Containership in Abnormal Waves”, Proceedings of the 30th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2011), 19-24 June, Roterdão, Holanda, ASME, New York, USA, paper: OMAE2011-50316
The paper presents experimental results from model tests with a containership advancing in abnormal wave conditions and comparisons with numerical simulations. A nonlinear time domain method based on strip theory is used for the calculation of vertical ship responses induced by abnormal waves. This code combines the linear diffraction and radiation forces with dominant nonlinear forces associated with vertical response arising from Froude-Krylov forces, hydrostatic forces and shipping of green water. The time domain simulations are compared directly with experimental records from tests with a model of a container ship in deterministic waves for a range of Froude numbers. Extreme sea conditions were replicated by the reproduction of realistic abnormal waves like the New Year Wave and abnormal wave from North Alwyn. Head sea condition is considered and the comparisons include the wave elevation, the vertical motions of the ship and the vertical bending moment at midship.
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