风电机组在运行及地震荷载作用下的结构动力响应分析  

Structural Dynamic Response Analysis of Wind Turbines Under Operating Loads and Seismic Loads

作　　者：祝军 ZHU Jun(Zhejiang Design Institute of Water Conservancy and Hydro-electric Power,Hangzhou 310002,China)

机构地区：[1]浙江省水利水电勘测设计院有限责任公司,浙江杭州310002

出　　处：《浙江水利水电学院学报》2025年第1期85-90,共6页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：风机在运行荷载和地震荷载共同作用下的动力响应,是风机结构设计的重要参考。对WindPACT 1.5 MW陆上风机采用FAST程序进行地震作用下风机动力响应分析,考虑3种不同风速条件,选择典型7度区场地,讨论风机在运行荷载和地震荷载共同作用下的动力响应。分析结果表明,在风机受到地震荷载时,FA方向和SS方向均会出现强烈响应,FA方向为控制方向;塔身中上部为加速度最大的部位,而非塔顶;应力最大位置为塔身中上部,需要关注塔身的应力失效风险。The dynamic response of wind turbine under the combined action of operating load and seismic load provides an important reference for the structural design of wind turbines.In the case study of WindPACT 1.5 MW onshore wind turbine,the FAST program was used to analyze the dynamic response of wind turbine under earthquake action.Considering three different wind speed conditions,a typical 7 degree site was selected to discuss the dynamic response of wind turbine under the combined action of operating load and seismic load.The results showed that,when the wind turbine was subjected to seismic load,there was a strong response in both FA direction and SS direction,but the FA direction was the control direction.The middle and upper part of the tower was the part with the greatest acceleration,not the top of the tower.The maximum stress position was the middle and upper part of the tower barrel,and the stress failure risk of the tower should be addressed.

关 键 词：风机结构 地震荷载 动力响应 位移 加速度 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]