Resonance demodulation technique based on IHT for rolling bearings fault diagnosis

DENG Si-er; WANG Yong; WANG Heng-di

Chinese

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Resonance demodulation technique based on IHT for rolling bearings fault diagnosis

更新时间：2026-07-07

- Resonance demodulation technique based on IHT for rolling bearings fault diagnosis
- Vol. 27, Issue 1, (2012)
- 作者机构：
  
  河南科技大学机电工程学院,河南,洛阳,471003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
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DENG Si-er, WANG Yong, WANG Heng-di. Resonance demodulation technique based on IHT for rolling bearings fault diagnosis[J]. 2012, 27(1).
DOI：

DENG Si-er, WANG Yong, WANG Heng-di. Resonance demodulation technique based on IHT for rolling bearings fault diagnosis[J]. 2012, 27(1). DOI：

摘要

针对传统解调方法在滚动轴承振动信号故障特征提取中的局限性

在迭代Hilbert变换和共振解调技术基础上

提出了一种新的基于迭代希尔伯特变换(iterated Hilbert transform

简称IHT)的共振解调技术的滚动轴承故障诊断方法.采用IHT将原始振动信号分解为若干个含有故障特征信息的包络幅值分量

然后用共振解调法去除残余的高频干扰噪声并求得各个包络分量的倍频谱

利用轴承理论故障频率与共振解调得到的各倍频进行对比分析

诊断出滚动轴承相应的故障类型.轴承故障实例诊断分析结果表明该方法能有效地提取轴承故障特征.

Abstract

Aiming at the limitations of traditional demodulation methods for extracting the fault feature of rolling bearing vibration signal

combining iterated Hilbert transform (IHT) with resonance demodulation technique

a new method about rolling bearing fault diagnosis was proposed.Firstly

the original vibration signal was decomposed into some component signals of envelope amplitude by iterated Hilbert transform

which contain fault characteristics;then

the high frequency interference noise was eliminated and frequency multiplication spectrum was obtained by resonance demodulation technique;finally

fault type was determined by contrast with theoretical fault frequency.The experimental results show that the approach can be applied to the roller bearings fault diagnosis effectively.

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