LEADER 02294nam 2200337 n 450 001 9910571717303321 005 20230514175305.0 035 $a(CKB)5860000000047032 035 $a(NjHacI)995860000000047032 035 $a(EXLCZ)995860000000047032 100 $a20230514d2011 uy 0 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aIntegrated Nonlinear Wind-Waves Model for Offshore Wind Turbines /$fEnzo Marino 210 1$aFirenze, Italy :$cFirenze University Press,$d2011. 215 $a1 online resource (230 pages) 311 $a88-927-3642-6 330 $aThis thesis presents a numerical model capable of simulating offshore wind turbines exposed to extreme loading conditions. External condition-based extreme responses are reproduced by coupling a fully nonlinear wave kinematic solver with a hydro-aero-elastic simulator. First, a two-dimensional fully nonlinear wave simulator is developed. The transient nonlinear free surface problem is formulated assuming the potential theory and a high-order boundary element method is implemented to discretize Laplace's equation. For temporal evolution a second-order Taylor series expansion is used. The code, after validation with experimental data, is successfully adopted to simulate overturning plunging breakers which give rise to dangerous impact loads when they break against wind turbine substructures. Emphasis is then placed on the random nature of the waves. Indeed, through a domain decomposition technique a global simulation framework embedding the numerical wave simulator into a more general stochastic environment is developed. The proposed model is meant as a contribution to meet the more and more pressing demand for research in the offshore wind energy sector as it permits taking into account dangerous effects on the structural response so as to increase the global structural safety level. 606 $aWind turbines 615 0$aWind turbines. 676 $a621.45 700 $aMarino$b Enzo$0301253 801 0$bNjHacI 801 1$bNjHacl 906 $aBOOK 912 $a9910571717303321 996 $aIntegrated Nonlinear Wind-Waves Model for Offshore Wind Turbines$93363279 997 $aUNINA