基于HHT的旋转机械转子振动故障诊断的方法研究  

Research on Method of Fault Diagnosis of Rotor Vibration of Rotating Machinery Based on HHT

作　　者：刘慧源 

机构地区：[1]唐山化工机械有限公司化工机械设计研究所,河北唐山063004

出　　处：《煤矿机械》2012年第4期276-278,共3页Coal Mine Machinery

摘　　要：旋转机械运转时会产生振动。对振动情况的分析能够把握机械的运转情况。振动信号处理是对旋转机械振动信号分析的重要手段。希尔伯特黄变换越来越得到人们的重视。该方法是一种时频分析方法。相对于其他方法,该方法能够更好地处理非线性非平稳信号,具有较高的时域分辨率和频域分辨率。将该方法应用于旋转机械的故障诊断中,并与其他方法做对比。When rotating machinery running, vibration will occur. The analysis of vibration can grasp functioning of mechanical. Vibration signal processing is an important way to analyze vibration signals of rotating machinery. More and more people began to pay attention to Hilbert Huang Transform. This method is a time-frequency analysis. Compared to other methods, this method can deal with non-linear non-stationary signals with a better result, and it has a high resolution time-domain and frequency domain resolution. This method is applied to rotating machinery fault diagnosis and was compared with other methods.

关 键 词：旋转机械 希尔伯特黄变换 故障诊断 WIGNER-VILLE分布 信号处理 

分 类 号：TH165[机械工程—机械制造及自动化]