Print Email Facebook Twitter Role of advanced soil modelling in the dynamic analysis of offshore wind turbines Title Role of advanced soil modelling in the dynamic analysis of offshore wind turbines Author Pisano, F. (TU Delft Geo-engineering) Corciulo, S. (D' Appalonia S.p.A. - Marine & Offshore Engineering) Zanoli, Omar (D' Appalonia S.p.A. - Marine & Offshore Engineering) Date 2017 Abstract The increasing relevance of offshore wind in the energy mix motivates continual research efforts for the optimisation of foundation systems. Currently, monopiles are still the most common foundations for offshore wind turbines (OWTs), due to their simplicity and the low costs for production/assembly. However, the modern trends towards larger OWTs and water depths pose newgeotechnical challenges in the design of more cumbersome and expensive monopiles. In this work, the potential of 3D finite element (FE) modelling for OWT applications is illustrated. The dynamic response of a soil-monopile-OWT system is numerically simulated by accounting for (i) dynamic hydro-mechanical (HM) coupling in the soil and (ii) cyclic plasticity modelling. In particular, the UCSD08 sand model developed by Yang and Elgamal (2008) has been adopted and calibrated against laboratory test results on medium dense sand. FE results are presented to highlight the combined influence of wind/wave loading and soil non-linearity on the dynamic OWT performance (and specifically on the main natural frequency). The results presented support the beneficial role that 3DFE modelling may play in the improvement of existing design methods. Subject offshore wind turbinemonopilesandcyclic plasticity modellinghydro-mechanical couplingdynamic analysis To reference this document use: http://resolver.tudelft.nl/uuid:0dffa2b1-bcdd-4ac1-b8bb-34b4c9e24512 Source Proceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, Seoul 2017 Event 19th International Conference on Soil Mechanics and Geotechnical Engineering, 2017-09-17 → 2017-09-22, Seoul, Korea, Republic of Part of collection Institutional Repository Document type conference paper Rights © 2017 F. Pisano, S. Corciulo, Omar Zanoli Files PDF 16_2017_Pisano_Corciulo_Z ... _Seoul.pdf 844.35 KB Close viewer /islandora/object/uuid:0dffa2b1-bcdd-4ac1-b8bb-34b4c9e24512/datastream/OBJ/view