Influence of Soil Damping and Aerodynamic Damping on the Dynamic Response of Monopile Wind Turbines under Earthquake and Wind Loads

Abstract

Vibration damping is essential for predicting the responses of wind turbines, and contributions mainly come from structural, soil, and aerodynamic damping. In engineering design, it is difficult to precisely account for the individual contributions of each damping source. As a result, a simplified approach is commonly used, where a total damping factor is applied that combines the effects of structural, soil, aerodynamic, and other damping sources. However, the accuracy of this simplified approach in predicting the dynamic response of turbines has not been thoroughly evaluated. This study primarily focuses on the applicability of vibration-damping simplification methods, particularly in analyzing the dynamic response of turbines under earthquake and wind loads.

Keywords

Wind turbine / Soil damping / Aerodynamic damping / Dynamic response

Acknowledgments

This research is funded by the National Natural Science Foundation of China (52278480). The support is gratefully acknowledged. The results and conclusions presented are of the authors and do not necessarily reflect the view of the sponsors.

Author Contributions

Conceptualization, P.W. and R.X.; Methodology, P.W. and R.X.; Software, P.W. and Y.B.; Validation, P.W., R.X. and Y.B.; Formal Analysis, Y.B.; Investigation, Y.Q.; Resources, Y.Q.; Data Curation, P.W. and R.X.; Writing—Original Draft Preparation, P.W. and R.X.; Writing—Review & Editing, Y.B., P.W. and R.X.; Visualization, Y.Q.; Supervision, X.D.; Project Administration, X.D.; Funding Acquisition, P.W.

Ethics Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Data will be made available on request.

Funding

This research is funded by the National Natural Science Foundation of China (52278480), and Chongqing Natural Science Foundation (CSTB2024NSCQ-MSX1108).

Declaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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