吊装条件下海上风电塔筒受力变形数值模拟
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Numerical Simulation of Force Deformation of Offshore Wind Turbine Tower Under Hoisting
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    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。

    Abstract:

    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.

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李治,曹亚楠,叶兆艺,梁英杰,余泉,骆尧臣.吊装条件下海上风电塔筒受力变形数值模拟[J].中国海洋平台,2024,(04):19-24

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  • 在线发布日期: 2024-08-28
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