DYNAMIC RESPONSE OF MONOPILE OFFSHORE WIND TURBINES IN SAND CONSIDERING SCOUR EFFECT

Zhang Xiaoling; Hou Xiaohe; Wang Piguang; Zhang Bingjie; Yi Jiangnan

doi:10.19912/j.0254-0096.tynxb.2025-0047

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (5) : 386-393. DOI: 10.19912/j.0254-0096.tynxb.2025-0047

DYNAMIC RESPONSE OF MONOPILE OFFSHORE WIND TURBINES IN SAND CONSIDERING SCOUR EFFECT

Zhang Xiaoling^1,2, Hou Xiaohe^1,2, Wang Piguang^1,2, Zhang Bingjie^1,2, Yi Jiangnan^1,2

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Abstract

In this paper, the influence of scour effects is considered by establishing a three-dimensional finite element model under wind-waves-current loads and seismic action, and the different influences of global scour and local scour on the dynamic response of the MOWT are compared. The results show that different forms of scour have different responses of the MOWTs under different loading conditions. The response of the MOWT system to local scour under seismic action is greater than that to global scour. However, with the exception of the bending moment, the response of the wind turbine system is observed to be greater under global scour than under local scour for larger scour depths under wind-waves-current loads and combined wind-waves-current loads and seismic action. This suggests that scour effects must be considered on the dynamic response of MOWTs under a complex marine environment. Furthermore, it can be observed that different forms of scour effects exert varying effects on the dynamic response of MOWTs.

Key words

offshore wind turbines / monopile foundation / local scour / global scour / dynamic response / marine loadings

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Zhang Xiaoling, Hou Xiaohe, Wang Piguang, Zhang Bingjie, Yi Jiangnan. DYNAMIC RESPONSE OF MONOPILE OFFSHORE WIND TURBINES IN SAND CONSIDERING SCOUR EFFECT[J]. Acta Energiae Solaris Sinica. 2026, 47(5): 386-393 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0047

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