考虑土-结构相互作用的海上风力机结构振动控制研究

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (7) : 283-290.

论文

韩东东，李昕，王文华

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Structural vibration control of offshore wind turbine considering soil-structure interaction

HAN Dongdong, LI Xin, WANG Wenhua

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文章历史 +

摘要

利用耦合线性弹簧模型来模拟桩基础和土体之间的相互作用，基于海上风力机整体结构耦合运动模型开发了可以考虑土-结构相互作用的固定式海上风力机结构振动控制程序（FAST-SC-SSI）。选取5-MW单桩基础海上风力机为研究对象，基于不同边界条件样本风机动力反应特性完成了机舱位置调谐质量阻尼器（TMD）参数设计。基于海上风力机结构时频域响应变化规律及控制率揭示了TMD的减振机理及土-结构相互作用对于减振效果的影响。通过对比得出：考虑土-结构相互作用对海上风力机结构调谐质量阻尼器设计至关重要。

Abstract

The fully coupled aero-servo-hydro-elastic-linear foundation simulation tool is developed based on the recompiled FAST-SC-SSI, and the coupled linear spring is applied to simulate the soil-structure interactions (SSI). The reference offshore wind turbines is designed according to the NREL 5-MW baseline wind turbine and a monopile foundation. The parameters of tuned mass damper (TMD) in nacelle are designed based on the dynamic characteristics of monopile OWT with rigid and flexible boundaries. Reductions of the structural responses in the time and frequency domains are adopted to reveal the vibration control mechanisms of TMD and evaluate the influence of SSI on the TMD mitigation effects. Based on the performed investigations, it can be seen the significant influence of SSI on the reductions of structural responses, which should be emphasized in the design of TMDs for OWTs.

导出引用

韩东东，李昕，王文华. 考虑土-结构相互作用的海上风力机结构振动控制研究[J]. 振动与冲击, 2022, 41(7): 283-290

HAN Dongdong, LI Xin, WANG Wenhua. Structural vibration control of offshore wind turbine considering soil-structure interaction[J]. Journal of Vibration and Shock, 2022, 41(7): 283-290

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