Structural safety improvement of offshore tall wind turbines under wind and wave loadings

Informazioni relative al progetto

OFFSHORE TALL TOWER

ID dell’accordo di sovvenzione: 793316

DOI

10.3030/793316

Progetto chiuso

Data della firma CE 21 Marzo 2018

Data di avvio 14 Febbraio 2019

Data di completamento 13 Febbraio 2021

Finanziato da

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Costo totale

€ 183 454,80

Contributo UE

€ 183 454,80

Coordinato da

THE UNIVERSITY OF BIRMINGHAM
United Kingdom

Periodic Reporting for period 1 - OFFSHORE TALL TOWER (Structural safety improvement of offshore tall wind turbines under wind and wave loadings)

Periodo di rendicontazione: 2019-02-14 al 2021-02-13

Sintesi del contesto e degli obiettivi generali del progetto

What is the problem/issue being addressed?
An experimental setup has been designed and is being manufactured. An experimental has been planned to study the structural response of offshore wind turbine tower under the combination of wind and wave loadings.

Why is it important for society?
This project will provide a novel methodology to study offshore tall wind turbine tower under waves and winds which can be used for optimization of offshore wind turbine manufacture and that will change wind energy policy. This will contribute to energy resilience that is one of the principal factors for sustainable and resilient development.

What are the overall objectives?
1)To explore the effect of wave loadings on the structural response of steel wind turbine tower in complicated ocean environments
2)To monitor and analyze the mechanical behavior of steel wind turbine towers under wind and wave loadings
3)To study the vibration characteristics of steel wind turbine towers

Lavoro eseguito dall’inizio del progetto fino alla fine del periodo coperto dalla relazione e principali risultati finora ottenuti

1. Three groups of offshore tower FE models with various variables including different tower heights, stiffness ring spacing and slope angles under wave and wind loadings is performed for the analysis of wind turbine tower under wind and wave loadings.
2. A scale-down tower model was manufactured by one factory as the experimental specimen, the laboratory can simulate the marine environment including wind, wave and current.
3. Various loading states involving wind-wave, wind-current, wave-current, wind-wave-current to measure the displacement, velocity and acceleration of the tower model at three points on the tower wall respectively.
4. The statistical analysis was performed to explore the effect of marine environment on the dynamic response of offshore tower model.

Progressi oltre lo stato dell’arte e potenziale impatto previsto (incluso l’impatto socioeconomico e le implicazioni sociali più ampie del progetto fino ad ora)

1. This project for offshore wind energy structures will perform advanced numerical and experimental analysis of wind energy structures and develop a simplified numerical model to explore the critical mechanical characteristics of the offshore wind turbine tower structure.
2. The project can be proposed a FE model of offshore wind turbine towers in marine environment.

The experimental facility