Abstract
AbstractThis research applied a Genetic Algorithm model to identify suitable JONSWAP spectra parameters for specific locations, solving restrictions such as the influence of bathymetry and met-ocean events that could limit the coefficient selection of the spectra. Also, this study assessed available parametrized equations of the JONSWAP spectra in order to verify their applications for easing the application of the GA model. The modeled results demonstrated the capability of the GA model to find the best alpha and gamma values of the spectra for normal and extreme sea state conditions. In addition, the assessed spectra parameterized equations evidenced limitations to represent the wave energy distribution at the study area, then, this study performed a successfully modification of one of these parameterized equations to model the proper JONSWAP spectra. According to the results was evidenced the necessity to apply numerical approaches such as Genetic Algorithms to solve wave spectra equations for offshore structure designing, and the assessing of support parameterized equations before their application because the wave loads could be wrongly estimated.
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