Seismic behavior analysis of wind turbine tower affected by hydrodynamic pressure based on a simplified calculation model

被引:3
|
作者
Huang, Shuai [1 ]
Qi, Qingjie [1 ]
Liu, Wengang [1 ]
Liu, Yingjie [1 ]
Zhao, Youxin [1 ]
机构
[1] China Coal Res Inst, Beijing 100013, Peoples R China
来源
LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES | 2020年 / 17卷 / 06期
基金
中国国家自然科学基金;
关键词
hydrodynamic pressure; wind turbine tower; earthquake action; shaking table test; water depth; SUBMERGED FLOATING TUNNELS;
D O I
10.1590/1679-78256196
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The interaction between water and structure will inevitably lead to the hydrodynamic pressure, which could change the dynamic behavior of the wind turbine tower under earthquake action. Based on the Morison hydrodynamic theory, a simplified calculation method of hydrodynamic pressure was proposed, and the effects of different water depths and hydrodynamic pressure on the seismic behavior of the wind turbine tower is investigated. The main results include: wind turbine tower in deep water is sensitive to water, and the deformation and energy dissipation capacity of the wind turbine tower are decreased affected by the hydrodynamic pressure; the influence of hydrodynamic pressure on the acceleration and displacement is related to the high frequency components of the seismic wave, and the effect of hydrodynamic pressure on the internal force, displacement, and acceleration increases with the increasing of the water depths under different earthquakes. Finally, a shaking table test is carried out, and the experimental results are in good agreement with the calculated results using our proposed method.
引用
收藏
页码:1 / 17
页数:17
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