大中型交流电机定子的振动特性研究

Study of Vibration Behaviour of Stators of the Large and Medium-Sized Electrical Machine

本文通过对ＹＲ８００ｋＷ异步电动机定子的模态分析试验．得到交流电机定子的各阶固有频率、模态振型、模态阻尼比。试验结果可作为降低大中型异步电动机和水轮发电机定子振动和噪声设计的依据。

In this paper the natural frequencies of the mode shape of vibration of the motor stator, damping characteristics are obtained by making use of experimental model analy sis of a YR-800kW asynchronous motor. and by analysis of measuring results of vibration of core. The result of this paper can be basis in studying and designing large and medium-sized electrical machines for low vibration and noise levels.