| Autor: |
Bruno Stuyts, Wout Weijtjens, Christof Devriendt |
| Přispěvatelé: |
Huynh, Dat Vu, Tang, Anh Minh, Doan, Dinh Hong, Watson, Phil, Applied Mechanics, Acoustics & Vibration Research Group |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Lecture Notes in Civil Engineering ISBN: 9789811677342 |
| Popis: |
The contribution of soil damping to the overall damping of offshore wind turbine structures has proven to be elusive. The strain-dependent soil stiff-ness and material damping can be quantified from small-scale element tests but applying the results from these tests in an integrated structural model requires a realistic assessment of the shear strains in the subsoil (Kagawa and Kraft, 1980). Recent developments in pile-soil interaction modelling for large-diameter monopiles (Byrne et al, 2017) have led to more accurate models of pile response under operational loads. Moreover, field measure-ments of offshore wind turbine foundations before installation of the su-perstructure are available which allow improved identification of the effect of soil damping. Applying the conventional pile-soil interaction modelling did not provide a satisfactory explanation for the differences in soil damp-ing. This paper applies improved pile-soil interaction modelling with site-specific soil parameters to three different offshore monopile foundations for a Belgian offshore wind project to identify whether the improved mod-els can explain the differences in measured soil damping. The results show the influence of the pile-soil interaction modelling on the derived soil damping. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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