海上风电机组高桩承台基础结构参数对结构动力响应规律的影响

Influence of High-pile Cap Foundation Structure Parameters on the Dynamic Response of Offshore Wind Turbines

随着“3060双碳”目标的提出,风能作为可再生能源的重要组成部分,大力发展风电已成为了能源战略的主要组成部分。为达到降本增效的目标,本文通过对高桩承台基础的结构参数开展进一步分析,揭示其影响规律。采用GH Bladed软件分析当海上风电机组高桩承台基础结构的桩身直径、钢管桩壁厚和布桩半径变化时,对塔顶动力响应规律的影响。结果表明:在外部载荷和环境参数一定的条件下,当桩径、壁厚和布桩半径变化时,塔顶的最大位移和加速度均有不同程度的变化规律。总体而言,随着桩身直径、壁厚和布桩半径的增加,塔顶位移的动力响应均呈现逐渐减小的趋势。

With the proposal of the"3060 dual carbon"goal,wind energy has emerged as a crucial component of renewable energy sources.To achieve the objective of cost reduction and efficiency increasing,this paper in-vestigates the structural parameters of high-pile cap foundations,aiming to uncover their influence.Utilizing GH Bladed software,the impacts of pile diameter,steel pipe pile wall thickness,and pile spacing on the dynamic re-sponse of offshore wind turbine towers are analyzed.The results indicate that,under specific external loads and environmental conditions,variations in pile diameter,wall thickness,and pile spacing lead to different degrees of change in maximum displacement and acceleration at the tower top.Generally,as pile diameter,wall thickness,and pile spacing increase,the dynamic response of tower top displacement exhibits a gradual decrease.