同济大学学报（自然科学版）2017，Vol.45Issue(7)：1016-1021,6.DOI:10.11908/j.issn.0253-374x.2017.07.011
风电叶片双惯性激振疲劳加载耦合振动特性
Coupling Characteristics of Dual Inertial Exciter Blade Fatigue Loading System
摘要
Abstract
A mathematical equation system was derived based on the Lagrange method for wind vane electric double inertia vibrator fatigue loading system,and thus a electromechanical coupling equation of the system was built.Using the small parameter cycle average method,the approximate analytic system vibration was derived for coupling process synchronization stability conditions.The influencing factors on the motor load torque in the process of system operation were obtained,and the mechanism of system coupling was revealed.On this basis,a simulation model was established to numerically simulate system frequency characteristic,and the vibration characteristics of blade under different loading frequencies were obtained.Experimental study on system frequency characteristics,main resonance electromechanical coupling characteristics,and control synchronization verifies the correctness of the mathematical model and simulation model and the feasibility of the control,providing reference for engineering application of fatigue loading system and test.关键词
风电叶片/疲劳试验/惯性激振器/耦合振动Key words
wind blade/fatigue testing/dual inertial exciter/coupling vibration分类
机械制造引用本文复制引用
廖高华,乌建中,张豪..风电叶片双惯性激振疲劳加载耦合振动特性[J].同济大学学报（自然科学版）,2017,45(7):1016-1021,6.基金项目
江西省精密驱动与控制重点实验室开放基金(PLPDC-KFKT-20162251) （PLPDC-KFKT-20162251）
