希尔伯特变换原理在轴承故障诊断中的应用

The Application of Hilbert Transformation Principle in Fault Diagnosis of Bearing

阐述希尔伯特变换及解调的基本原理,并据此对振动信号进行幅值及相位解调与分析,为旋转机械故障诊断提供早期和准确的故障信息。

This paper describes the fundamental principle of Hilbert transformation.The amplitude modulation of vibration signals and the analysis and calculation of instantaneous phase are made according to the principles,providing early and ac currate information for breakdown diagnosis of rotating machinery.