随机风浪作用下15 MW近海单桩风机基础疲劳分析  

Fatigue analysis of 15 MW offshore monopile wind turbine foundation under random wind and waves

作　　者：栾志萌 窦培林[1] 方世祥 严松松 张浩然 库一航 LUAN Zhimeng;DOU Peilin;FANG Shixiang;YAN Songsong;ZHANG Haoran;KU Yihang(School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China;Marin Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212000 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《舰船科学技术》2025年第4期143-147,共5页Ship Science and Technology

摘　　要：单桩式风机塔筒是支撑整个风机叶片和机组的基础结构,其疲劳强度的稳定性和可靠性是风机设备安全运行的重要保障。本文以15 MW海上风机塔筒为对象,通过采用完全耦合的时域仿真程序,考虑实际环境条件,得出塔基的荷载和结构应力情况,并使用雨流计数法和Miner准则计算疲劳累积损伤。结果表明,波浪荷载引起的塔座疲劳损伤大于风荷载引起的疲劳损伤。在额定风速的环境条件下,考虑风浪错位的联合作用会导致塔基疲劳损伤最大。The monopile wind turbine tower is the basic structure that supports the entire wind turbine blades and units,and the stability and reliability of its fatigue strength are important guarantees for the safe operation of wind turbine equip-ment and units.In this study,a 15 MW offshore wind turbine tower was used as the object,and the load and structural stress of the tower foundation were obtained by using a fully coupled time-domain simulation program,considering the actual en-vironmental conditions,and the fatigue cumulative damage was calculated by using the rainflow counting method and the Miner criterion.The results show that the fatigue damage caused by wave load is greater than that caused by wind load.Un-der the environmental conditions of rated wind speed,considering the combined effect of wind and wave dislocation,the fa-tigue damage of the tower foundation will be the greatest.

关 键 词：单桩式风力机 疲劳分析 雨流计数法 风机基础 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]