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Title: Contribution of the rotational kinematic interaction to the seismic response of monopile-supported offshore wind turbines
Authors: Medina López, Cristina 
Alamo, G. M. 
Padrón, Luis Alberto 
UNESCO Clasification: 332205 Fuentes no convencionales de energía
Keywords: Offshore wind turbines
Soil-structure interaction
Seismic loading
Structural response
Issue Date: 2023
Journal: Ocean Engineering 
Abstract: This paper presents a study on the role of kinematic interaction effects on the seismic response of large monopile-supported offshore wind turbines. For this purpose, a finite element substructuring model is used to analyse the behaviour of three reference wind turbines with rated powers of 5, 10 and 15 MW founded on several soil profiles and subjected to different accelerograms. The foundation response is computed through a continuum model which includes soil–structure interaction. The effects of inertial and kinematic soil–structure interaction on the system seismic response is evaluated also through comparisons with results corresponding to the infinitely rigid base condition. It is found that neglecting kinematic interaction factors could lead to underestimate the seismic response of large monopile-supported offshore wind turbines. The rotational kinematic interaction factor is shown to increase the OWTs seismic response.
ISSN: 0029-8018
DOI: 10.1016/j.oceaneng.2023.114778
Source: Ocean Engineering [0029-8018], v. 280, 15 July 2023, 114778
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