Buckling analysis of a 10 MW offshore wind turbine subjected to wind-wave-earthquake loadings

Yan, Yangtian; Li, Chun; Li, Zhihao

doi:10.1016/j.oceaneng.2021.109452

Cited by 19 publications

(2 citation statements)

References 13 publications

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“…Relevant studies have highlighted on the seismic response of wind turbines such as Xi et al, [7] developed a seismic response analysis framework for the NREL 5 MW offshore wind turbine based on the FAST code; Ali et al, [8] investigated the seismic vulnerability of wind turbines considering 2 MW and 5 MW wind turbines; The seismic assessment of offshore wind turbines subjected to strong ground motions was performed by De Risi et al, [2]. Yan et al, [9] studied the dynamic responses and buckling of a 10 MW monopile offshore wind turbine subjected to multiple environmental loadings. Moreover, the effectiveness of active and passive control technologies such as tuned mass dampers (TMD), tuned sloshing dampers, and tuned liquid dampers to control the dynamic response of wind turbines was investigated [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A Novel Reduced Column Approach for the Mitigation of Earthquake-Induced Vibrations of Wind Turbines

Tombari,

Rostami

2024

J. Phys.: Conf. Ser.

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Wind power is a sustainable and renewable energy source which becomes fundamental in order to meet the worldwide rising demand for energy. New onshore and offshore wind farms will be rapidly constructed in challenging environments, especially in earthquake-prone areas. Although a flexible structure, the wind turbine tower is slender and lightly damped which may exhibit a high susceptibility to earthquake-induced vibration. Whilst past studies have been based on traditional passive control devices, such as tuned mass dampers or tuned liquid column dampers, this study aims to propose a novel approach, the Reduced Column Section (RCS), to design an innovative transition piece to mitigate the vibrations on fixed wind turbines. The novel transition piece of hourglass shape will allow the control of the fundamental period of the wind turbine as well as it will limit the maximum stresses within the device by protecting the tower and the monopile. The proposed approach will be numerically tested on the 15MW benchmark wind turbine proposed by the International Energy Agency. A 3-dimensional finite element model will be generated using the commercial ADINA software and verified through the 1-dimensional baseline model provided for the open-source OPENFAST code. Therefore, the novel transition piece will be implemented and tested under a combination of multi-hazards such as wind and seismic loading. Two proposed devices, with and without auxetic lattice structure, will be investigated. The benefits of the proposed devices will be demonstrated in terms of the mitigation of the stresses on the tower wall and on the soil.

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Section: Introductionmentioning

confidence: 99%

A Novel Reduced Column Approach for the Mitigation of Earthquake-Induced Vibrations of Wind Turbines

Tombari,

Rostami

2024

J. Phys.: Conf. Ser.

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“…More recent studies highlight the relevance of earthquake loads in the design of wind turbines considering 65 kW [13], 2 MW [14,15] or 5 MW [13,[15][16][17][18][19][20][21] systems. However, to the extent of the authors knowledge, there are few studies (e.g., [3,22,23]) in the scientific literature analysing the seismic behaviour of larger OWTs.…”

Section: Introductionmentioning

confidence: 99%

Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction

Medina

Álamo

Quevedo-Reina

2021

JMSE

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As a result of wind power’s expansion over the globe, offshore wind turbines (OWTs) are being projected in seismic prone areas. In parallel, the industry develops increasingly larger and more powerful generators. Many of the seismic response analyses of wind turbines conducted so far only consider smaller units. In this paper, a finite element substructuring model in frequency domain is used to compute the seismic response of four reference OWTs from 5 to 15 MW founded on monopiles embedded in several homogeneous soil profiles with shear wave velocities from 100 to 300 m/s and subjected to different accelerograms. The foundation behaviour is obtained through a continuum model including kinematic and inertial interaction. The relevance of soil-structure interaction and main trends of the seismic response of OWTs are inferred from the presented results. Although the seismic maximum bending moments increase with the size of the OWT system, their relevance with respect to the ones produced by design loads decreases as the turbine gets bigger. The same effect is observed for the shear forces if the soil is soft enough. The inclusion of SSI effects almost duplicates the seismic response when compared to the rigid base scenario.

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Introduction

Cheng,

Lu,

Wang

2024

Dynamic Analysis of Offshore Wind Turbine Foundations in Soft Clays

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Buckling analysis of a 10 MW offshore wind turbine subjected to wind-wave-earthquake loadings

Cited by 19 publications

References 13 publications

A Novel Reduced Column Approach for the Mitigation of Earthquake-Induced Vibrations of Wind Turbines

A Novel Reduced Column Approach for the Mitigation of Earthquake-Induced Vibrations of Wind Turbines

Evolution of the Seismic Response of Monopile-Supported Offshore Wind Turbines of Increasing Size from 5 to 15 MW including Dynamic Soil-Structure Interaction

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