风电叶片刚度检测值和退化速率的温度效应  

TEMPERATURE EFFECT OF STIFFNESS DETECTION VALUE AND DEGRADATION RATE OF WIND TURBINE BLADES

作　　者：白学宗[1] 安宗文[1] 侯运丰[1] 马军霞 Bai Xuezong;An Zongwen;Hou Yunfeng;Ma Junxia(School of Me chatronics Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学机电工程学院,兰州730050

出　　处：《太阳能学报》2021年第12期245-252,共8页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51265025);甘肃省高等学校产业支撑引导项目(2020C-12)。

摘　　要：为探究环境温度对刚度检测值和退化速率的影响规律,以65 kW叶片为研究对象,通过不同温度下的疲劳试验获得刚度退化曲线,发现温度对叶片各截面刚度影响程度略有不同但非常接近;通过对比恒温、常温和风电场实测温度下的刚度退化量,发现考虑温度影响可使疲劳试验叶片和在役叶片的刚度退化分析结果更准确。In order to explore the effect of ambient temperature on blade stiffness detection and degradation rate,the 65 kW wind turbine blade is taken as the research object. By the fatigue test under different temperatures,the stiffness degradation curve is obtained,which shows that the temperature influence on the stiffness of each blade section is slightly different but very close. By the comparative analysis of the stiffness degradation among constant temperature,normal temperature and wind farm temperature,it is found that if the temperature effect is considered,the stiffness degradation analysis of blades should be more accurate.

关 键 词：风电叶片 刚度检测值 刚度退化速率 环境温度 疲劳试验 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]