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linear conditions, either directly in the frequency domain or indirectly by the analysis of long simulated time traces. Only the nonlinear response in regular waves is required to be known. In this paper, this information was deducted from the regular wave experiments but the results of a set of large amplitude ship motion simulations could be used as well.


The work reported herein was performed during the author's stay at the Laboratory of Ship Hydromechanics of the Delft University of Technology. The author is grateful to professor J.A.Pinkster and staff for inspiring discussions and for their assistance in model testing in particular. The research was financially supported by the Royal Netherlands Navy.


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