Research Article
Fatigue Assessment of Monopile Supported Offshore Wind Turbine under Non-Gaussian Wind Field
Table 1
Parameters of an offshore wind turbine.
| | Properties | NREL 5 MW OWT |
| | Rating | 5 MW | | Rotor, hub diameter (m) | 126, 3 | | Hub height (m) | 90 | | Cut-in, cut-out wind speed (m/s) | 3, 25 | | Rated wind speed (m/s) | 11.4 | | Cut-in, rated rotor speed (rpm) | 6.9, 12.1 | | Rotor mass (kg) | 110000 | | Nacelle mass (kg) | 240000 | | Tower mass (kg) | 347460 | | Water depth (m) | 20 | | Tower height (m) | 90 | | Monopile length (m) | 60 | | Top of tower diameter and thickness (m) | 3.87, 0.019 | | Bottom of tower diameter and thickness (m) | 6, 0.027 | | Monopile diameter and thickness (m) | 6, 0.06 | | Density of tower and monopole (kg/m3) | 8500 | | Yang’s modulus of tower and monopile (GPa) | 210 |
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