Experiment and electromechanical coupling characteristics of multi-point excitation fatigue loading system

被引：0
|
作者：
College of Mechanical Engineering, Tongji University, Shanghai [1 ]
201804, China
不详 [2 ]
330099, China
机构：
来源：
Tongji Daxue Xuebao | / 10卷 / 1582-1587期
关键词：
Turbine components - Turbomachine blades - Vibrations (mechanical) - Bifurcation (mathematics) - Wind turbine blades;
D O I：
10.11908/j.issn.0253-374x.2015.10.020
中图分类号：
学科分类号：
摘要：
The multi-point fatigue loading system was simplified for the coupling-problem occuring in case of wind turbine blade loading multi-point excitation. The dynamic mathematical model was established by using the two eccentric block vibration loading as object, constructed electro-mechanical coupling equations for the system, and then the electro mechanical coupling was solved by the small parameter cycle average method in resonance conditions. Electromechanical coupling characteristics and stability conditions of vibration system were obtained by the phase plane method. The mechanism of system coupling was revealed. The mechanical and electrical coupling characteristics of primary resonance, system dynamic bifurcation coupling and synchronization control were studied. The coupling characteristics of dynamic bifurcation and its avoidance method were obtained. Finally, the correctness of theoretical analysis through the test, provide guidance for the engineering application of the fatigue loading system, and which provides a reference for similar engineering application and test. ©, 2015, Science Press. All right reserved.
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