Dynamic Characteristics Analysis of a Multi-Pile Wind Turbine Under the Action of Wind–Seismic Coupling

Chaoyang Zheng, Yongtao Wang, Jiahua Weng, Bingxiao Ding () and Jianhua Zhong ()
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Chaoyang Zheng: School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Yongtao Wang: School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Jiahua Weng: School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
Bingxiao Ding: Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong 999077, China
Jianhua Zhong: School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China

Energies, 2025, vol. 18, issue 11, 1-25

Abstract: When analyzing the dynamics of wind turbines under the action of wind and ground motion, mass–point models cannot accurately predict the dynamic response of the structure. Additionally, the coupling effect between the pile foundation and the soil affects the vibration characteristics of the wind turbine. In this paper, the dynamic response of a DTU 10 MW wind turbine under the coupling effect of wind and an earthquake is numerically studied through the combined simulation of finite-element software ABAQUS 6.14-4 and OpenFAST v3.0.0. A multi-pile foundation is used as the foundation of the wind turbine structure, and the interaction between the soil and the structure is simulated by using p - y curves in the numerical model. Considering the coupling effect between the blade and the tower as well as the soil–structure coupling effect, this paper systematically investigates the vibration response of the blade–tower coupled structure under dynamic loads. The study shows that: (1) the blade vibration has a significant impact on the tower’s vibration characteristics; (2) the ground motion has varying effects on blades in different positions and will increase the out-of-plane vibration of the blades; (3) the SSI effect has a substantial impact on the out-of-plane vibration of the blade, which may cause the blade to collide with the tower, thus resulting in the failure and damage of the wind turbine structure.

Keywords: 10 MW wind turbine; soil–structure interaction; wind and seismic loading; blade–tower coupling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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