利用粒子滤波与谱峭度的滚动轴承故障诊断

被引：60

作者：

李宏坤

杨蕊

任远杰

何德鲁

郭斌

机构：

[1] 大连理工大学机械工程学院

来源：

机械工程学报 | 2017年 / 53卷 / 03期

关键词：

滚动轴承; 状态空间; 粒子滤波; 谱峭度;

D O I：

暂无

中图分类号：

TH133.33 [滚动轴承];

学科分类号：

082805 [农业机械化与装备工程];

摘要：

针对快速谱峭度在低信噪比情况下分析效果差的问题,提出应用粒子滤波的前处理降噪方法来提高信噪比,从而解决谱峭度受噪声干扰效果差的问题,进而提高滚动轴承故障诊断的成功率。建立振动信号的状态方程,提取原始信号的背景噪声,将其与状态方程之和作为观测方程。联立状态方程与观测方程来建立状态空间模型。采用粒子滤波对信号重新估计,得到新序列即是降噪之后的信号,结合快速谱峭度方法,获取最佳分析频带。并结合频谱分析得出故障频率。对比快速谱峭度与经验模式分解(Empirical mode decomposition,EMD)方法降噪的谱峭度分析诊断结果,证明所提方法的有效性。

引用

页码：63 / 72

页数：10

共 9 条

[1]

A general sequential Monte Carlo method based optimal wavelet filter: A Bayesian approach for extracting bearing fault features.[J].Dong Wang;Shilong Sun;Peter W. Tse.Mechanical Systems and Signal Processing.2015,

[2]

An enhanced Kurtogram method for fault diagnosis of rolling element bearings [J].

Wang, Dong ;

Tse, Peter W. ;

Tsui, Kwok Leung .

MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2013, 35 (1-2) :176-199

[3]

Application of an improved kurtogram method for fault diagnosis of rolling element bearings [J].

Lei, Yaguo ;

Lin, Jing ;

He, Zhengjia ;

Zi, Yanyang .

MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2011, 25 (05) :1738-1749

[4]

A novel method for the optimal band selection for vibration signal demodulation and comparison with the Kurtogram.[J]..Mechanical Systems and Signal Processing.2010, 1

[5]

The enhancement of fault detection and diagnosis in rolling element bearings using minimum entropy deconvolution combined with spectral kurtosis [J].

Sawalhi, N. ;

Randall, R. B. ;

Endo, H. .

MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2007, 21 (06) :2616-2633

[6]

Fast computation of the kurtogram for the detection of transient faults.[J]..Mechanical Systems and Signal Processing.2006, 1

[7]

The spectral kurtosis: a useful tool for characterising non-stationary signals.[J]..Mechanical Systems and Signal Processing.2004, 2

[8]

The spectral kurtosis: application to the vibratory surveillance and diagnostics of rotating machines.[J]..Mechanical Systems and Signal Processing.2004, 2

[9]

EMD降噪和谱峭度法在滚动轴承早期故障诊断中的应用 [J].

苏文胜 ;

王奉涛 ;

张志新 ;

郭正刚 ;

李宏坤 .

振动与冲击, 2010, 29 (03) :18-21+201

← 1 →