Practical Method to Estimate Foundation Stiffness for Design of Offshore Wind Turbines
Saleh Jalbi, Masoud Shadlou and Subhamoy Bhattacharya, University of Surrey, Guildford, United Kingdom Email: S.Bhattacharya@surrey.ac.uk
Abstract
Offshore wind turbine structures (OWTs) are dynamically sensitive due to their shape and form (slender column supporting a heavy rotation mass) and also due to the different forcing functions (wind, wave, and turbine loading) acting on the structures. Designers need to ensure that the first Eigen natural frequency is not close to forcing frequencies to avoid dynamic associated effects such as resonance and fatigue damage. Such damages may result in higher maintenance costs and a lower service life. ...
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