Variable cross-sectional effect on bi-directional blades–tower–soil–structure dynamic interaction on offshore wind turbine subject to wind–wave loads

• Published in: Beni-Suef University Journal of Basic and Applied Sciences Vol. 12; no. 1; pp. 107 - 15
• Main Authors: El Absawy, Mostafa A., Elnaggar, Zakaria, Ibrahim, Hesham H., Taha, M. H.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2023; Springer; Springer Nature B.V; SpringerOpen
• Subjects: Aerodynamic loads; Aerodynamics; Air-turbines; Alternative energy sources; Blades; Case studies; Comparative analysis; Dynamic response; Energy resources; Environmental conditions; Euler-Lagrange equation; Euler–Lagrange equations; Finite element analysis; Finite element method; Hermite polynomials; Investigations; JONSWAP spectrum; Mathematical analysis; Medicine; Medicine & Public Health; Model accuracy; Morison equation; Numerical model; Numerical models; Offshore; Offshore structures; Optimization techniques; Renewable resources; Robustness (mathematics); Shape functions; Simulation; Simulation methods; Soil structure; Soils; Sustainability; Turbine industry; Turbines; Turbulence models; Variable cross-sectional tower; Vibration; Wind effects; Wind power; Wind turbine; Wind turbines; Dynamic response; Morison equation; JONSWAP spectrum; Numerical model; Euler–Lagrange equations; Blade element moment theory; Von Karman turbulence model; Wind turbine; Variable cross-sectional tower; Flexible foundation

Background This study introduces a numerical model designed to simulate interactions occurring between a wind turbine's tower and the surrounding soil, as well as between the nacelle, blades, and the surrounding environment. This simulation accounts for both fore–aft and side-to-side movements....