Hilbert变换在滚动轴承故障诊断中的应用

Application of Hilbert Transformation in Rolling Bearing Fault Diagnosis

针对滚动轴承故障特征的提取问题,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滚动轴承故障诊断中的应用,并用LabVIEW编制了相应的程序。实践表明,基于Hilbert变换的包络解调方法具有明显的诊断意义。

To extract fault feature of rolling bearing, the principle of Hilbert transformation, the envelope analysis based on Hilbert transformation and its application in rolling bearing fault diagnosis are discussed. A correlative LabVIEW program is provided. The practice shows that the envelope demodulation method based on Hilbert transformation offers a reliable method for the rolling bearing fault diagnosis.