基于实测振动数据的海上风电基础冲刷损伤识别分析

邱旭; 李会; 司广全; 王金寿; 赵昊; 刘鑫

doi:10.19912/j.0254-0096.tynxb.2023-1555

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (2) : 676-682. DOI: 10.19912/j.0254-0096.tynxb.2023-1555

基于实测振动数据的海上风电基础冲刷损伤识别分析

邱旭^1,2, 李会^1,2, 司广全³, 王金寿⁴, 赵昊^1,2, 刘鑫^1,2

作者信息 +

IDENTIFICATION AND ANALYSIS OF SCOUR DAMAGE OF OFFSHORE WIND TURBINE FOUNDATION BASED ON MEASURED VIBRATION DATA

Qiu Xu^1,2, Li Hui^1,2, Si Guangquan³, Wang Jinshou⁴, Zhao Hao^1,2, Liu Xin^1,2

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文章历史 +

摘要

运用数值模型分析桩周海床冲刷对海上风电机组动力特性的影响,发现单桩基础的风电机组自振频率对冲刷较为敏感,而高桩承台基础的机组则不敏感,可通过分析单桩基础机组的频率变化来反演桩周冲淤变化情况。进一步地,选取了3台典型机组,利用机组的振动实测数据及冲刷扫测数据,分析了振动信号时变特性同桩周海床冲淤变化的关系。当桩周海床发生冲刷、淤积或基本不变时,机组自振频率呈现出下降、上升和基本不变的趋势,验证了通过机组实测振动信号判断桩周海床冲淤特性的可行性。

Abstract

In this paper, a numerical model is used to analyze the influence of scour around foundations on the dynamic characteristics of offshore wind turbines. The natural vibration frequency of wind turbines with monopile foundation is more sensitive to scour, while that of turbines with multi-pile cap foundation is not. The variation of scour and deposition around piles can be inverted by analyzing the frequency variation of monopile foundation. Further, three typical wind turbines are selected, and the relationship between the time-varying characteristics of vibration signals and the scour and deposition changes of the sea bed around the pile was analyzed by using the measured vibration data and scour scanning data of the wind turbines. When the sea bed around the pile was scour, silted or basically unchanged, the natural vibration frequency of the wind turbine shows a trend of decreasing, increasing and basically unchanged. The feasibility of judging the scouring and silting characteristics of the sea bed around foundations by the measured vibration signal of the wind turbine is verified.

导出引用

邱旭, 李会, 司广全, 王金寿, 赵昊, 刘鑫. 基于实测振动数据的海上风电基础冲刷损伤识别分析[J]. 太阳能学报. 2025, 46(2): 676-682 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1555

Qiu Xu, Li Hui, Si Guangquan, Wang Jinshou, Zhao Hao, Liu Xin. IDENTIFICATION AND ANALYSIS OF SCOUR DAMAGE OF OFFSHORE WIND TURBINE FOUNDATION BASED ON MEASURED VIBRATION DATA[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 676-682 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1555

中图分类号： P751

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