风电平台冰载荷数值分析

Numerical Analysis of Ice Loads on Wind Power Platform

冰载荷是海洋工程中重要环境载荷之一,给冰区风电平台的安全带来严重威胁。传统有限元方法难以准确预测风电平台冰载荷,因此结合渤海地区海冰数据,通过仿真标定的方式确定数值分析参数。采用离散元与内聚力单元法对风电平台冰载荷进行分析,并进一步通过与有限元进行耦合,得出风电平台的高应力点与大变形位置。两种数值分析方法可为风电平台冰载荷分析与抗冰设计提供参考。

Ice load is one of the important environmental loads in marine engineering.It poses a serious threat to the safety of wind power platforms in ice areas.The traditional finite element method is difficult to predict the ice load of wind power platform accurately.The numerical analysis parameters are determined by simulation calibration by combining sea ice data in the Bohai Sea.The discrete element method and cohesive method are used to analyze the ice load of wind power platform.Then,it further by coupling with finite element.The high stress point and large deformation location of wind power platform are analyzed.So,the two numerical analysis methods can provide references for wind power platform ice load analysis and ice design.