Vibration Coupling Feature of Dual-point Fatigue Loading System of Wind Turbine Blade
Zhang Leian1,2,3，Huang Xuemei1，YAO Jin kai1
1.School of Mechanical Engineering, Shandong University of Technology, Zibo, 255091;
2.School of Mechanical and Electrical Engineering, China University of Mining & Technology, Xuzhou, 221116;
3. Lianyungang Zhongfu Lianzhong Composite Group Co. ,Ltd, Lianyungang, 222000
Abstract：To solve the problem of small driven capacity and long test period of single-point fatigue loading system, a dual-point fatigue loading system of wind turbine blade is designed. By simplifying the loading system rationally, its electromechanical coupling mathematical model is established, and then its simulation model is built with Matlab/Simulink software. By simulating the electromechanical coupling process of the dual-point fatigue vibration system, the basic influence laws of different motor speed and different initial phase are obtained. Finally, a small dual-point fatigue loading test system of wind turbine blade is set up and the test results are consistent with the simulation results. The accuracy of the mathematical model and simulation model is validated, which provides a theoretical basis for the subsequent precise control of dual-point fatigue loading test and optimal design of the blade.
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