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Typical bearing-fault rating using force measurements: application to real data
J. Slavič, A. Brković and M. Boltežar
Typical bearing-fault rating using force measurements: application to real data
Journal of Vibration and Control, December 2011 vol. 17 no. 14 2164-2174 
download pdf   more   dx.doi.org/10.1177/1077546311399949
Abstract
In contrast to the commonly used acceleration measurement, this research discusses the use of force measurements to identify bearing faults. A force sensor is fixed between the rigid surroundings and the bearing to measure all the reactive forces due to the vibration excitation.
Using a force measurement, systematically prepared samples with the five typical faults that can occur during the assembly process (axial, radial, bending moment, contamination and shield defect) were investigated. The samples were prepared with low, medium and high fault rating. The force measurement, with its relatively simple signal processing based on an envelope detection, was shown to be successful in correctly identifying both the fault rating and the fault type.
The presented approach was successfully applied to high-series assembly production and is relatively easy to apply to similar applications.
If you would like to work on the bearing vibration data set that we have acquired, please download it here or send an email to the first author.
Authors
 
Associate Professor
Janko Slavič, PhD
Ladisk, Faculty of Mechanical Engineering, University of Ljubljana
janko.slavic@fs.uni-lj.si    ⌂ ladisk.si/~slavic/
☏ +386 1 4771 226   jankoslavic   jankoslavic
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Marie Curie EST
Aleksandar Brković, PhD Student
Ladisk, Faculty of Mechanical Engineering, University of Ljubljana
aleksandar.brkovic@fs.uni-lj.si    ⌂
☏ +386 1 4771 228     
  
Professor
Miha Boltežar, PhD
Ladisk, Faculty of Mechanical Engineering, University of Ljubljana
miha.boltezar@fs.uni-lj.si    ⌂ ladisk.si/~boltezar/
☏ +386 1 4771 608     
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