基于Hilbert变换的包络分析及其在滚动轴承故障诊断中的应用

Envelope analysis based on Hilbert transformation and its application in ball bearing fault diagnosis

讨论了Hilbert变换的基本原理 ,以及基于Hilbert变换的包络解调方法在轴承故障诊断中的应用。实践表明 :对于具有调制现象的滚动轴承故障诊断 ,基于Hilbert变换的包络解调方法 ,具有明显的诊断意义 ,是一种可靠的诊断方法。

The principle of Hilbert transformation,the envelope analysis based on Hilbert transformation and its application in the machinery fault diagnosis are discussed. The practice shows that the envelope demodulation method based on Hilbert transformation offers a reliable method for the ball bearing fault diagnosis with modulation phenomenon.