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A spectral response surface method for calculating crest elevation statistics
Tromans, P.S.; Vanderschuren, L. (2004). A spectral response surface method for calculating crest elevation statistics. J. Offshore Mech. Arct. Eng. 126(1): 51-53.
In: Journal of offshore mechanics and arctic engineering. ASME: New York, NY. ISSN 0892-7219; e-ISSN 1528-896X, more
Peer reviewed article  

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  • Tromans, P.S.
  • Vanderschuren, L.

    The statistics of wave crest elevation in a random, directionally spread sea are calculated using a novel approach. The nonlinearity of steep waves is modelled to second order using Sharma and Dean kinematics and a spectral response surface method is used to deduce the crest elevation corresponding to a given probability of exceedance. The spectral response surface method works in the probability domain, making it several times faster than conventional time domain simulation of random waves. However the results from the two methods show good agreement. As expected, nonlinearity makes extreme crests higher than the corresponding linear ones.

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