Vibration measurements for validation of electromechanical rotor model for cage induction motor

被引：0
|
作者：
Holopainen, TP [1 ]
Aatola, SA [1 ]
Arkkio, A [1 ]
机构：
[1] ABB Oy, Elect Machines, Helsinki, Finland
来源：
VIBRATIONS IN ROTATING MACHINERY | 2004年 / 2004卷 / 02期
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Eccentric rotor motion of an electric motor induces an unbalanced magnetic pull. This eccentricity force may couple the electromagnetic system with the flexural vibration modes of the shaft. Recently, a simple parametric model was presented for this electromechanical interaction. The aim of this study was to produce experimental data for the validation of this electromechanical rotor model. A standard six-pole 18 kW induction motor was equipped with a long flexible shaft for the experiments. The frequency and damping of the first flexural rotor mode was identified in unloaded steady-state operation. The limit-cycle vibrations and sub-critical unstability was observed in measurements.
引用
收藏
页码：423 / 432
页数：10
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