风电叶片粘接结构刚度退化模型  

Stiffness degradation model of wind turbine blade adhesive structures

作　　者：张岩 徐嘉亮 安宗文[2] 马强[2] Zhang Yan;Xu Jialiang;An Zongwen;Ma Qiang(Gansu Province Special Equipment Inspection and Testing Institute,Gansu Lanzhou,730050,China;School of Mechanical and Electrical Engineering,Lanzhou University of Technology,Gansu Lanzhou,730050,China)

机构地区：[1]甘肃省特种设备检验检测研究院,甘肃兰州730050 [2]兰州理工大学机电工程学院,甘肃兰州730050

出　　处：《机械设计与制造工程》2023年第12期115-120,共6页Machine Design and Manufacturing Engineering

基　　金：国家自然科学基金(51665029);甘肃省教育厅产业支撑项目(2020C-12)。

摘　　要：为了探究风电叶片粘接结构疲劳失效过程中的损伤演化规律,需要构建相应的理论模型来对该过程进行更为直观准确的表达,首先从宏观唯象的角度入手,基于风电叶片粘接结构中复合材料层合板以及粘接层在疲劳载荷作用下的刚度退化规律,分别建立层合板以及粘接层的刚度退化模型。然后根据风电叶片粘接结构的刚度退化规律,利用刚度分布系数将层合板与粘接层刚度退化模型相结合,建立粘接结构的刚度退化模型。案例分析表明,与现有粘接结构刚度退化模型相比,所建模型精度更高,能更加合理地描述粘接结构在疲劳失效过程中的损伤演化规律。In order to investigate the damage evolution law of the adhesive structure fatigue failure process in wind turbine blade,and to construct a corresponding theoretical model to more intuitively and accurately express this process,it establishes the stiffness degradation models of composite laminate and adhesive layer under fatigue loading in the adhesive structure of wind turbine blade respectively.Then,according to the stiffness degradation law of wind turbine blade adhesive structure,the stiffness degradation models of the laminate and adhesive layers are combined using the stiffness distribution coefficient to establish the stiffness degradation model of the adhesive structure.Case analysis shows that compared with existing stiffness degradation models for adhesive structure,the model established in this paper has higher accuracy and can more reasonably describe the damage evolution law of the adhesive structure during the fatigue failure process.

关 键 词：风电叶片 粘接结构 疲劳失效 刚度退化 

分 类 号：TB332[一般工业技术—材料科学与工程]