垂荡板对半潜式风机动力响应影响研究  

Influence of Heave Plates on Dynamic Responses of a Semi-Submersible Wind Turbine

作　　者：李浩然 彭婧芙 郑金海[1] 张继生[1] 彭伟 张炫 Li Haoran;Peng Jingfu;Zheng Jinhai;Zhang Jisheng;Peng Wei;Zhang Xuan(College of Coastal,Harbor and Offshore Engineering,Hohai University,Nanjing 210098,China;School of Ocean Engineering and Technology,Sun Yat-Sen University,Zhuhai 519082,China)

机构地区：[1]河海大学港口海岸与近海工程学院,南京210098 [2]中山大学海洋工程与技术学院,珠海519082

出　　处：《水动力学研究与进展（A辑）》2024年第4期500-508,共9页Chinese Journal of Hydrodynamics

基　　金：江苏省自然科学基金青年基金项目(BK20220982);中国博士后科学基金面上项目(2023M740981)。

摘　　要：在海洋环境作用下,半潜式风机支撑平台会产生六自由度运动。平台底部增设垂荡板能有效抑制平台运动响应,提升风机稳定性。该文以底部具有单层圆形垂荡板的OC4-Deep Cwind半潜式风机平台为原型,设计了单层圆形开孔垂荡板及双层圆形垂荡板,在频域及时域下研究了不同形式垂荡板对半潜式风机平台水动力性能及动力响应的影响。研究发现:开孔垂荡板减小了平台在垂荡、纵摇方向的附加质量与辐射阻尼,降低了风机稳定性,且风机稳定性随垂荡板开孔率增大而减小;双层垂荡板增大了平台在垂荡、纵摇方向的附加质量与辐射阻尼,抑制了风机运动,垂荡板间距为垂荡板厚度时,风机稳定性更优。Under the marine environments,a semi-submersible wind turbine would produce 6 degree of freedom motion.The heave plates which are deployed at the bottom of the platform can effectively reduce the motion and improve the stability of the wind turbine.Based on the OC4-DeepCwind semi-submersible wind turbine with circular heave plates at the bottom of platform,the perforated circular heave plates and double circular heave plates are designed in this paper to investigate the influence of heave plates on the hydrodynamics and dynamic responses of wind turbine in frequency and time domain.It is found that the perforated heave plate reduces the added mass and radiation damping of the platform in the heave and pitch directions,which reduces the stability of the wind turbine.The stability of the wind turbine decreases with the increase of perforated ratio of the heave plates.The double circular heave plates increase the added mass and radiation damping,and suppress the heave and pitch motion.Better stability is observed when the distance between two circular plates is close to the height of the heave plate.

关 键 词：半潜式风机 垂荡板 附加质量 辐射阻尼 动力响应 

分 类 号：P752[天文地球—海洋科学]