电机定转子刚体模型非线性振动研究  

STUDY ON NONLINEAR VIBRATION OF RIGID MODEL OF GENERATOR STATOR AND ROTOR

作　　者：吴慧敏[1] 贾启芬[1] 

机构地区：[1]天津大学机械学院力学系,天津300072

出　　处：《动力学与控制学报》2011年第3期222-226,共5页Journal of Dynamics and Control

摘　　要：建立了电机定转子耦合的刚体模型,针对电机变频启动时,电流存在高次谐波的情况,推导求解了高次谐波磁势,得到了电磁力的多种成分.分析了电磁刚度对系统固有频率的影响,对系统垂直与水平振动相耦联的非线性共振进行了研究,得到了系统的一次近似解及稳态响应曲线,讨论了电磁参数和质量对共振的影响.A coupling rigid model for the generator stator and rotor was established. When the up in frequency conversion, there is high harmonic in electricity. In this condition, high harmonic force was expressed and the component parts of electro - magnetic force were obtained. Then the generator starts magnetometive effect of electro -magnetic stiff on the inherent frequency was analyzed. The nonlinear vibration of the vertical and horizontal coupling was studied, the first approximation solution and its corresponding steady - state solution were acquired, and the effect of electromagnetic damping and mass on resonance.

关 键 词：电机 耦合 电磁 非线性 共振 

分 类 号：O322[理学—一般力学与力学基础]