Dynamic analysis of offshore steel wind turbine towers subjected to wind, wave and current loading during construction

OCEAN ENGINEERING

卷:216

Article

Hu, Yu^1,2  Yang, Jian^1,2  Baniotopoulos, Charalampos²  Wang, Xinger¹  Deng, Xiaowei¹ 

[1] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China

[2] Univ Birmingham, Sch Engn, Birmingham B15 2TT, W Midlands, England

关键词: Wind turbine tower;    Offshore wind turbines;    Monopiles;    Dynamic analysis;    Current-wave-wind interaction;   

DOI  :  10.1016/j.oceaneng.2020.108084

来源: Elsevier

【 摘 要 】

In the present paper the dynamic response of tall offshore monopile steel wind turbine towers under wind, wave and current during the erection stage is studied. In particular, in the present paper the effect of current-wave-wind interaction as dynamic loading on the dynamic response of offshore wind turbine towers is for first time studied experimentally. 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. A statistical analysis of the dynamic displacements of the model is conducted to study the effect of various loading states on the respective dynamic response. As outcome of the present study it was confirmed that the current field strongly affects the dynamic response of offshore monopoles and in particular, more significantly than the wave field. In the final part, an advanced finite element model is proposed for the efficient study of the structural response of the tower model during erection under current, wave and wind interaction.

【 授权许可】

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