漂浮式风力机平台动态响应的优化方法探讨

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (3) : 20-26.

论文

漂浮式风力机平台动态响应的优化方法探讨

叶舟1,2，成欣1，周国龙1，李春1,2

作者信息 +

Research on improvement method for dynamic responses of floating offshore wind turbines

YE Zhou1,2，CHENG Xin1，ZHOU Guo-long1，LI Chun1,2

Author information +

文章历史 +

摘要

为研究漂浮式风力机平台动态响应的优化措施，分别提出平台附加螺旋侧板和平板的方式。建立基于Spar平台的5MW风力机整机模型，利用有限元软件进行水动力计算，得到了结构运动和波浪力的幅频特性。并通过与附加螺旋侧板和平板情况下的频域和时域动态特性参数对比，探讨两种措施是否对结构的运动性能起到提升作用。结果表明：附加螺旋侧板后，结构在垂荡和纵摇上的运动幅值均得到了明显抑制；附加平板可以有效降低结构的垂荡频域响应峰值，但对纵荡和纵摇影响很小；在考虑实际风、浪、流载荷作用时，两种措施都能起到对结构运动性能的优化作用，附加螺旋侧板的优化作用更为优越。

Abstract

To research the improvement methods for dynamic responses of floating offshore wind turbine(FOWT), whole machine models for Spar platform supported FOWT were built to study the influence of helical strake and circular plate on dynamic response. In order to research whether the two methods can improve the performance of FOWT, Time-domain and frequency-domain performances of the two structures were gained to compare with the normal structure. The results show that the heave and pitch motion amplitude of FOWT with helical strake are effectively suppressed. While the attachment with circular plate can decrease heave frequency-domain amplitude but shows no improvement in surge and pitch motion. In addition, both two methods succeed to improve the kinematic performance when considering the combination load of wind, wave and current. Helical strake has better improvements than circular.

导出引用

叶舟1,2，成欣1，周国龙1，李春1,2. 漂浮式风力机平台动态响应的优化方法探讨[J]. 振动与冲击, 2016, 35(3): 20-26

YE Zhou1,2，CHENG Xin1，ZHOU Guo-long1，LI Chun1,2. Research on improvement method for dynamic responses of floating offshore wind turbines[J]. Journal of Vibration and Shock, 2016, 35(3): 20-26

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