大型海上风力机地震冲击角动力学响应分析

牛凯伦; 闫阳天; 李春; 李志昊; 岳敏楠

doi:10.19912/j.0254-0096.tynxb.2021-0261

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太阳能学报 ›› 2022, Vol. 43 ›› Issue (11) : 292-302. DOI: 10.19912/j.0254-0096.tynxb.2021-0261

大型海上风力机地震冲击角动力学响应分析

牛凯伦¹, 闫阳天¹, 李春^1,2, 李志昊¹, 岳敏楠¹

作者信息 +

DYNAMIC RESPONSE ANALYSIS OF SEISMIC IMPACT ANGLE OF LARGE OFFSHORE WIND TURBINE

Niu Kailun¹, Yan Yangtian¹, Li Chun^1,2, Li Zhihao¹, Yue Minnan¹

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文章历史 +

摘要

为研究海上风力机在不同地震冲击角下的动力学响应,基于p-y曲线法构建土-构耦合模型,基于DTU 10 MW 单桩式近海风力机建立有限元模型,研究地震冲击角变化对大型海上风力机地震动力学响应的影响。结果表明：0°和90°地震冲击角下风力机结构受载荷响应最剧烈;当地震冲击角为锐角时,塔顶前后向和侧向位移幅值均下降,总应变能集聚现象显著缓解;地震冲击角为15°和30°时风力机等效应力均值相对其他角度有明显下降。因此,主动调整风力机叶轮朝向以调整地震冲击角可能成为风力机受地震冲击后降低损害的有效控制方式。

Abstract

In order to research the dynamic response of offshore wind turbines under different seismic impact angles, a soil-structure interaction model was constructed based on the p-y curve method, and a finite element model was established with DTU 10 MW monopile offshore wind turbine as the research object to study the impact of seismic impact angle changes on the seismic dynamic response of large offshore wind turbines. The results show that the seismic impact angles of 0° and 90° are the most violent angles of the wind turbine structure under load response. When the seismic impact angle is acute, the front-to-back and lateral displacement amplitude of the tower top decreases and the total strain energy accumulation is significantly alleviated. When the seismic impact angle is 15° and 30°, the equivalent stress of wind turbine decreases obviously compared with other angles. Therefore, actively adjusting the orientation of wind turbine wheels to adjust the seismic impact angle may be an effective control method to reduce the damage of wind turbines after being impacted by earthquakes.

导出引用

牛凯伦, 闫阳天, 李春, 李志昊, 岳敏楠. 大型海上风力机地震冲击角动力学响应分析[J]. 太阳能学报. 2022, 43(11): 292-302 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0261

Niu Kailun, Yan Yangtian, Li Chun, Li Zhihao, Yue Minnan. DYNAMIC RESPONSE ANALYSIS OF SEISMIC IMPACT ANGLE OF LARGE OFFSHORE WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2022, 43(11): 292-302 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0261

中图分类号： TK83

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