风力发电机轮毂-主轴连接螺栓强度影响因素分析  

Analysis on Strength Influencing Factors of the Connecting Bolts between Wind Turbine Hub and Spindle

作　　者：刘泽源 赵春雨 柳胜举 刘东 陈亮 LIU Zeyuan;ZHAO Chunyu;LIU Shengju;LIU Dong;CHEN Liang(Mingyang Smart Energy Group Co.,Ltd.,Zhongshan 528437,China)

机构地区：[1]明阳智慧能源集团股份公司,广东中山528437

出　　处：《机械工程师》2025年第1期125-129,共5页Mechanical Engineer

摘　　要：基于VDI2230的基本理论,从螺栓刚度、螺栓组参数、夹紧件结构3个方面对轮毂-主轴连接螺栓的极限和疲劳性能进行研究。采用有限元的计算方法,基于大型计算软件模拟了不同规格、不同节圆、不同边距等不同方案下轮毂主轴连接螺栓的力学性能。结果表明:对于无缩径螺栓,增大螺栓规格可以改善极限强度但不能改善螺栓疲劳强度。在缩径相同的条件下,增大螺栓规格可以改善抗疲劳性能。增加螺栓数量及增大节圆直径均可以提升轮毂-主轴连接螺栓的极限强度。夹紧件结构对螺栓疲劳损伤值影响明显,增大轮毂-主轴连接螺栓的边距可以大幅度改善螺栓的抗疲劳性能。Based on the basic theory of VDI2230,the ultimate strength and fatigue performance of hub-shaft connection bolts are studied from three aspects:bolt stiffness,bolt group parameters,and clamp structure.The mechanical properties of bolts under different specifications,pitch circles,edge distances,and other working conditions are simulated using the finite element calculation software.The results indicate that increasing the bolt size can improve ultimate strength but cannot improve the fatigue strength of common bolts.Under the same conditions of reducing,increasing the bolt size can improve fatigue performance.Increasing the number of bolts and pitch diameter can both improve the ultimate strength of the hub spindle connection bolts.The clamping component structure has a significant impact on the fatigue damage value of bolts,and increasing the edge distance of the hub shaft connection bolt can significantly improve the fatigue performance of the bolt.

关 键 词：风力发电机 轮毂-主轴连接螺栓 有限元分析 极限强度 疲劳损伤 

分 类 号：TM315[电气工程—电机]