基于叶根载荷的风力发电机组风剪切强度分析  

Research on Wind Shear Strength of Wind Turbine Based on Blade Root Load

作　　者：周春雷[1] 于瑞[1] ZHOU Chunlei;YU Rui(Changzhou Institute of Engineering Technology,Changzhou Jiangsu 213164,China)

机构地区：[1]常州工程职业技术学院,江苏常州213164

出　　处：《机械设计与研究》2020年第4期220-224,共5页Machine Design And Research

基　　金：常州工程职业技术学院教育研究重点专项项目(2017YZX002)。

摘　　要：风力发电机组的风剪切强度是引起风力发电机组疲劳失效的重要因素之一,以风力发电机组的叶片根部载荷为基础,建立了一种基于叶根载荷分析风力发电机组风剪切强度的分析理论,并根据实际叶根测试数据对理论模型进行分析与验证。研究结果表明:实测的载荷强度比值处于标准风剪切模型的载荷比值之上,位于极限风剪切模型的载荷比值之下;进而判断得出实际的风力发电机组风剪切强度位于标准风剪切强度之上,而位于极限风剪切强度之下,且最大的风剪切强度为标准风剪切强度的1.64倍,为极限风剪切强度的0.6倍,从而验证了理论模型进行风剪切强度分析的可行性及有效性。The strength of wind shear has been one of the important factors that cause the fatigue failure of wind turbines,based on the blade root load of wind turbines,an analysis method for wind shear strength has been established,and the analyze theory has been verified based on the test data of actual blade root load.The research results show that the measured strength ratio of blade root load is above the load ratio under standard wind shear strength but is below the load ratio of ultimate wind shear strength;therefore,the actual wind shear strength of the test wind turbine is above the standard wind shear strength and below the ultimate wind shear strength,and the maximum wind shear strength is 1.64 times the standard wind shear strength,and 0.6 times the ultimate wind shear strength,which verifying the feasibility and effectiveness of the theoretical model for wind shear strength.

关 键 词：风力发电机组 风剪切 载荷 载荷强度 

分 类 号：U463.51[机械工程—车辆工程]