Eventos Anais de eventos
DINAME 2023
XIX International Symposium on Dynamic Problems of Mechanics
Design of a Flexible Monopile Foundation for the Offshore Wind Turbine Vibration Control by Pendulum Tuned Mass Dampers
Submission Author:
Gino Colherinhas , GO
Co-Authors:
Gino Colherinhas, Marlipe Garcia Fagundes Neto, Sigeo Kitatani Júnior, Marcus Vinicius Girão de Morais
Presenter: Gino Colherinhas
doi://10.26678/ABCM.DINAME2023.DIN2023-0167
Abstract
In this study, a flexible monopile foundation is modeled considering the Pile-Soil Interaction (PSI) enhancing a previously designed Offshore Wind Turbine (OWT) model controlled by an optimal passive-adaptive Pendulum-Tuned Mass Damper (PTMD). The PSI is designed by a pile modeled as beam-column elements supported by nonlinear springs for lateral loads (p-y curves) and axial loads (t-z and Q-z curves), applied at the nodal points between the elements. The estimation of wind and wave spectra, as well as the hydrodynamic and aerodynamic loads, are conducted by using an in-house built MATLAB® routine working together with an ANSYS® 3-D finite element (FE) global model for evaluating the resultant peak displacement response at the OWT hub by a power spectral density (PSD) analysis. This procedure basis on the 5-MW baseline OWT proposed by the National Renewable Energy Lab (NREL). A selected design case of PTMD parameters compares the PSD response with and without soil interaction and an static analysis procedure evaluates the monopile displacements and stresses along the pile.
Keywords
flexible monopile foundation, offshore wind turbine, pendulum tuned mass damper, power spectral density analysis, structural control
