希尔伯特变换在机械故障诊断中的应用

The application of hilbert transform in mechanical fault diagnostics.

阐述了希尔伯特变换基本原理 ,并依此原理对振动信号进行幅值解调、瞬时相位的分析和计算 。

This paper describes the fundamental principles of Hilbert transformation.The amplitude modulation of vibration signals and the analysis and caculation of instantaneouo phase are made according to the principles,providing early and accurate informations for breakdown diagnosis of rotating machinery.