摘要
为了解海上风电塔筒吊装过程中塔筒受力变形特征,采用Abaqus数值分析软件建立塔筒吊装三维有限元数值模型,分析塔筒厚度、长度及直径对筒身最大变形的影响规律。结果显示:当塔筒起吊处于水平状态下时,辅吊点处应力集中而发生屈服破坏;塔筒最大应变随着塔筒长度及直径的增加而增大,随着塔筒厚度的增加而减小;基于敏感性分析数据,提出基于遗传编程(Genetic Programming,GP)的塔筒最大变形预测模型,平均误差仅6.19%。数值分析结果可为海上风电塔筒吊装施工提供参考。
In order to understand the deformation characteristics of the tower during the hoisting process in offshore wind turbine installations,a three-dimensional finite element numerical model of the tower is established using Abaqus numerical analysis software.The influence of the tower thickness,length and diameter on the maximal deformation of the tower is analyzed.The results show that:when the tower is lifted in a horizontal position,the stress concentration occurs at the auxiliary lifting point,leading to yielding and failure;the maximal strain of the tower increases with the increase of the length and diameter of the tower and decreases with the increase of the tower thickness;based on the sensitivity analysis data,a maximal deformation prediction model of the tower is proposed based on Genetic Programming(GP),with an average error of only 6.19%.The numerical analysis results provide valuable insights for the construction of the offshore wind turbine tower during the lifting process.
作者
李治
曹亚楠
叶兆艺
梁英杰
余泉
骆尧臣
LI Zhi;CAO Yanan;YE Zhaoyi;LIANG Yingjie;YU Quan;LUO Yaochen(Power China Huadong Engineering Co.,Ltd.,Hangzhou 311122,Zhejiang,China;Zhejiang East China Engineering Consulting Co.,Ltd.,Hangzhou 311122,Zhejiang,China;Shandong Bohai No.2 Wind Power Co.,Ltd.,Dongying 257029,Shandong,China;Ocean College,Zhejiang University,Zhoushan 316021,Zhejiang,China)
出处
《中国海洋平台》
2024年第4期19-24,53,共7页
China offshore Platform
基金
浙江省联合基金重点项目(编号:LHZ22E090002)
浙江省教育厅科研项目(编号:Y202250867)
中国电建集团华东勘测设计研究院有限公司科技项目(编号:KY2022-ZX-31)。
关键词
海上风电
塔筒
吊装工艺
受力分析
offshore wind power
tower
hoisting process
force analysis
作者简介
李治(1991-),男,工程师,主要研究方向为海上风电结构工程。
