Rolling bearing diagnosing method based on empirical mode decomposition of machine vibration signal

J Dybała, R Zimroz - Applied Acoustics, 2014 - Elsevier
Rolling bearing faults are one of the major reasons for breakdown of industrial machinery
and bearing diagnosing is one of the most important topics in machine condition monitoring …

Recent developments in vibration based diagnostics of gear and bearings used in belt conveyors

J Obuchowski, A Wylomańska… - Applied Mechanics and …, 2014 - Trans Tech Publ
Local damage detection in bearings/gearboxes is one of the most intensively explored
problems in condition monitoring literature. Also for mechanical systems used in mining …

Selection of informative frequency band in local damage detection in rotating machinery

J Obuchowski, A Wyłomańska, R Zimroz - Mechanical Systems and Signal …, 2014 - Elsevier
Problem of informative frequency band (IFB) selection in vibration signal processing for local
damage detection is discussed. It is proposed to extend the concept of automatic and …

The local maxima method for enhancement of time–frequency map and its application to local damage detection in rotating machines

J Obuchowski, A Wyłomańska, R Zimroz - Mechanical Systems and Signal …, 2014 - Elsevier
In this paper a new method of fault detection in rotating machinery is presented. It is based
on a vibration time series analysis in time–frequency domain. A raw vibration signal is …

Blind equalization using combined skewness–kurtosis criterion for gearbox vibration enhancement

J Obuchowski, R Zimroz, A Wyłomańska - Measurement, 2016 - Elsevier
In this paper a method for vibration signal enhancement is presented. It incorporates an idea
that the signal acquired on the machine housing is a convolution of an informative signal …

[HTML][HTML] Combination of principal component analysis and time-frequency representations of multichannel vibration data for gearbox fault detection

J Wodecki, P Stefaniak, J Obuchowski… - Journal of …, 2016 - extrica.com
A multichannel vibration data processing method in the context of local damage detection in
gearboxes is presented in this paper. The purpose of the approach is to achieve more …

[HTML][HTML] Application of alpha-stable distribution approach for local damage detection in rotating machines

G Żak, A Wyłomańska, R Zimroz - Journal of Vibroengineering, 2015 - extrica.com
In this paper a novel method for informative frequency band selection for local damage
detection is presented. Local damage in bearings/gearbox provides specific vibration …

Identification of cyclic components in presence of non-Gaussian noise–application to crusher bearings damage detection

J Obuchowski, R Zimroz, A Wylomanska - Journal of Vibroengineering, 2015 - extrica.com
In this paper an issue of local damage detection in a rolling element bearing is discussed.
The bearing operates in a hummer crusher, thus the vibration signal acquired on the …

[HTML][HTML] Data-driven vibration signal filtering procedure based on the α-stable distribution

G Żak, A Wyłomańska, R Zimroz - Journal of Vibroengineering, 2016 - extrica.com
A novel procedure for data-driven enhancement of informative signal is presented in this
paper. The introduced methodology covers decomposition of the signal via time-frequency …

Application of tempered stable distribution for selection of optimal frequency band in gearbox local damage detection

A Wyłomańska, G Żak, P Kruczek, R Zimroz - Applied Acoustics, 2017 - Elsevier
Local damage detection methods based on the vibration signal analysis are widely
discussed in the literature. One of the most popular approach is signal enhancement by …