考虑SSI效应时的下一代大型海上风力机抗震控制研究

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (23) : 175-182.

论文

余洁1，秦志豪1，杨阳1,2，戴靠山2

作者信息 +

Seismic control of next generation large offshore wind turbines considering SSI effect

YU Jie1,QIN Zhihao1,YANG Yang1,2,DAI Kaoshan2

Author information +

文章历史 +

摘要

为研究地震载荷对海上风力机结构动力响应，本文以IEA 15 MW单桩风力机为研究对象，基于开源软件FAST二次开发，考虑土-构耦合效应，通过模态加速度法和调谐质量阻尼器（Tuned Mass Damper，TMD）编写了海上风力机地震动力学仿真及结构控制程序，研究了三种不同载荷场景下风力机结构动力响应变化以及TMD对塔架振动效果的影响。结果表明，地震载荷为风力机塔架振动的主要因素，风载荷与波浪载荷对地震后塔顶纵向位移影响较大；TMD能有效降低塔顶振动，可降低峰值40%以上，对地震后塔基面内弯矩降载明显，标准差可降低70%。

Abstract

In order to investigate the earthquake loading effects on the dynamic responses of an offshore wind turbine, this study has developed a seismic analysis and structural control architecture using the modal acceleration method and Tuned Mass Damper（TMD）by extending capabilities within the open source tool namely FAST. The IEA 15 MW monopile wind turbine is used for the case study, considering the soil-structure interaction effects. The dynamic responses of the wind turbine and the influence of TMD on the vibration effect of tower under three different load scenarios are studied. The results show that earthquake load is the dominant contributor to the tower vibration, wind and wave loadings have a significant influence on the fore-aft displacement at the tower top after the earthquake occurrence. The TMD can effectively reduce the tower top vibration and the peak magnitude decreases by over 40%. The in-plane bending moment at the tower-base following the earthquake occurrence has a considerable reduction due to the presence of TMD. More specifically, the standard deviation is reduced by 70%.

导出引用

余洁1，秦志豪1，杨阳1,2，戴靠山2. 考虑SSI效应时的下一代大型海上风力机抗震控制研究[J]. 振动与冲击, 2023, 42(23): 175-182

YU Jie1,QIN Zhihao1,YANG Yang1,2,DAI Kaoshan2. Seismic control of next generation large offshore wind turbines considering SSI effect[J]. Journal of Vibration and Shock, 2023, 42(23): 175-182

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