4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017 | |
Horizontal dual-point excitation and fatigue test of full-scale wind turbine blade | |
材料科学;化学 | |
Pan, Zujin^1 ; Wu, Jianzhong^1 ; Zhao, Xinhua^3 ; Xie, Yan^2 | |
School of Mechanical Engineering, Tongji University, Shanghai, China^1 | |
Shanghai Aeolian Wind Energy Technology Development (Group) Co Ltd., Shanghai, China^2 | |
Ningbo Intelligent Manufacturing Industry Research Institute, Ningbo, China^3 | |
关键词: Dead weights; Excitation characteristics; Excitation theory; Exciting forces; Experimental methods; Lagrange's equation; Single point; Wind turbine blades; | |
Others : https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012082/pdf DOI : 10.1088/1757-899X/207/1/012082 |
|
学科分类:材料科学(综合) | |
来源: IOP | |
【 摘 要 】
In order to meet the requirements of large-blade fatigue testing, a horizontal dual-point linear exciter loading program is developed. In this paper, Lagrange's equation and FEM method are used to simulate the dual-point excitation theory model. The horizontal dual-point excitation characteristics of the blade are validated by the experimental method. The relationship among the dual-point exciting force, cycle time and bending moment during blade fatigue test in flap wise direction is studied. The advantages of horizontal dual-point excitation in blade fatigue test are analysed. Compared with vertical single-point excitation when the equal bending moment is reached, the exciting force and energy consumption required for dual-point excitation are reduced by 60.0% and 96.8%. Resonant frequency of the test system is improved by reducing the dead weight because of dual-point horizontal excitation. The entire blade fatigue test time is shortened by 7.4%. The use of horizontal dual-point excitation could save energy and shorten the entire fatigue test time.
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
Horizontal dual-point excitation and fatigue test of full-scale wind turbine blade | 293KB | download |