垂荡板漂浮式风力机Spar平台对强迫振荡的动态响应分析

为研究垂荡板对漂浮式风力机Spar平台强迫振荡的动态响应,基于Umaine-Hywind Spar平台承载的5MW风力机整机模型,应用数值计算方法对附有不同数目垂荡板的漂浮式风力机Spar平台进行水动力计算,得出结构运动的幅频特性。结果表明:随着垂荡板数目的增多,Spar平台的动态响应越小,附加质量越大,但其动态响应并未按线性关系减小,虽有降低平台动态响应的效果不明显;相同垂荡板数目的几种情况下,板间距对整个结构的影响不可忽略。

Analysis of dynamic response of forced vibration for heave plates of spar platform of floating wind turbine

In order to investigate the dynamic response of heave plates on the forced vibration of Spar platform of floating wind turbine,based on a model of 5MW floating wind turbine loaded on Umaine-Hywind Spar platform,the paper used numerical simulation method to carry out hydrodynamic calculation for Spar platform of floating wind turbine with different number of vertical plate so as te get frequency-amplitude characteristics of structure movement. The results show that with the increase of vertical plate number, the less the dynamic response of platform becomes, the more the additional mass will increase but the dynamic response does not reduce according to linear relationship attaching more heave plates. However, the reduction of dynamic response didn''t show a linear relationship,the effect becomes less evident;under several situations of the same number of heave plates,the effect of space between plates on the whole structure can also not be ignored.