Abstract
ABSTRACT Monopiles supporting offshore wind turbines are commonly designed using p–y curves that are originally validated for slender piles in oil and gas applications. In this study, it is aimed to investigate dynamic behaviour of a monopile supported wind turbine using newly suggested p–y formulation derived from centrifugal tests and compare the results for the same structure with API proposed p–y curves. A numerical model is set up and dynamic analysis is carried out under wind-wave loading. Results show that replacing API p–y curves with laboratory-obtained ones will lead to meaningful changes in dynamic response parameters. The fundamental frequency would change considerably and would be sensitive to applied load levels. Wind frequency response is almost unaffected from p–y curve models while wave frequency response is highly affected especially in resonant frequency for the studied structural configuration. Effect of changes in foundation cyclic stiffness on the dynamic response is also investigated.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
