基于全矢谱和Hilbert包络解调的滚动轴承故障诊断

发布时间：2018-06-09 20:18

本文选题：全矢谱 + Hilbert解调　；参考：《机床与液压》2016年11期

【摘要】：提出一种滚动轴承故障诊断新方法——全矢Hilbert包络解调谱分析。Hilbert变换对于滚动轴承故障信号有良好的调制解调效果,但单依赖传统的单通道信号会产生信息遗漏,对诊断的准确性造成影响,基于同源双通道信息融合的全矢谱技术,能够更加全面、准确地反映设备振动特性。将全矢谱技术与Hilbert解调相结合,并进行滚动轴承外圈故障的诊断实验,证实了全矢Hilbert包络解调谱分析的有效性和先进性。
[Abstract]:A new method of rolling bearing fault diagnosis is proposed. The full vector Hilbert envelope demodulation spectrum analysis.Hilbert transform has good modulation and demodulation effect on the rolling bearing fault signal, but the single channel signal only relies on the traditional single channel signal to omit information, affect the accuracy of diagnosis, and based on the full vector spectrum of the fusion of the homologous dual channel information. The technology can reflect the vibration characteristics of the equipment more comprehensively and accurately. The whole vector spectrum technology is combined with the Hilbert demodulation, and the diagnosis experiment of the fault of the outer ring of the rolling bearing is carried out. The validity and the advanced character of the full vector Hilbert envelope demodulation spectrum analysis are confirmed.
【作者单位】：郑州大学振动工程研究所;
【基金】：国家自然科学基金资助项目(51405453) 河南省教育厅自然科学研究项目(2011B460012);河南省教育厅科学技术研究重点项目(13A460673)
【分类号】：TH133.33

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