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Publications
Zhang, HD. and Guedes Soares, C. (2015), “Responses of an LNG carrier in the presence of abnormal waves”, Maritime Technology and Engineering, Guedes Soares, C. & Santos T.A. (Eds.), Taylor & Francis Group, London, UK, pp. 1081-1094
This paper studies the ship behaviour in the long-crested nonlinear water waves produced numerically by the Nonlinear Schrödinger equation, which is capable of catching the modulational instability and generating abnormal waves. Responses to these wave conditions are also compared with those to the linear wave time series in the same sea state characterized by a JONSWAP spectrum. The comparison is mainly focused on the aspects of the vertical motions, shear forces and bending moments obtained in three typical sea states. As anticipated, with the increased nonlinearity, the presence of a large set of abnormal waves apparently leads to larger ship responses and structural loads. Moreover, it is revealed that the ship responses are not only determined by the wave height but also dependent on the wave length.
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