大型风电叶片根部连接螺栓静强度设计
The Static Strength Design of Root Connection Bolts for Large Scale Wind Blades

作者: 欧阳玉香 * , 林能发 , 靳交通 , 彭超义 :株洲时代新材料科技股份有限公司,株洲;

关键词: 风电叶片连接螺栓静强度设计方法Wind Blades Connection Bolts Static Strength Design

摘要:
风电叶片与主机的连接强度直接影响着风力发电机组运行的安全性和可靠性,风电叶片根部连接螺栓静强度设计是连接设计的基础,静强度设计是连接螺栓在叶片受到最大载荷情况不发生断裂失效和获得可靠连接的保证,同时也为合理设计螺栓安装预紧力,保证叶根螺栓正确安装提供依据。本文针对大型风电叶片根部连接的特点,结合螺栓设计标准,分析了极限工况下叶根连接的受力情况,并依据受力情况阐述了一种叶根螺栓静强度校核方法,为风电叶片根部螺栓强度设计提供了一种参考思路。

Abstract:
The connection strength of wind blade and wind turbine has great effect on the safety and reliability of wind turbine operation, the static strength design of root connection bolts for large scale wind blade is the basic of connection strength design. The static strength design ensures that the connection bolts do not fracture failure and get a reliable connec- tion while the blade under maximum load, meanwhile, it provides a basis for bolts pretension design and the correct installation of root connection bolts. Based on the characteristic of large-scale wind blade root connection, this thesis analyzes the forces of root connection of wind blade in the limit condition, and describes a design of the blade bolts static strength, which would be a reference for wind blade root bolt strength design.

文章引用: 欧阳玉香 , 林能发 , 靳交通 , 彭超义 (2013) 大型风电叶片根部连接螺栓静强度设计。 机械工程与技术, 2, 87-91. doi: 10.12677/MET.2013.23017

参考文献

[1] 周坤, 刘美红. 法兰螺栓连接中螺栓预紧力的计算和控制方法分析[J]. 数字技术与机械加工工艺装备, 2010, 8: 26-28.

[2] 陈真, 杜静, 何玉林, 刘卫, 冯博. 采用VDI2230的风力发电机组塔简法兰联接处螺栓强度分析[J]. 现代制造工程, 2011, 5: 125-129.

[3] S. M. Habalia, I. A. Salehb. Local design, testing and manufac- turing of small mixed airfoil wind turbine blades of glass ®ber reinforced plas-tics. Part I: Design of the blade and root. Energy Conversion & Man-agement, 2000, 41: 249-280.

[4] 成大先. 机械设计手册, 第二卷•第5版[M]. 北京: 化学工业出版社, 2007.

[5] 朱若燕, 李厚民. 高强度螺栓的预紧力及疲劳寿命[J]. 湖北工学院学报, 2004, 3: 134-136.

分享
Top