Paper Info
Title
Diagnosing the Change in the Internal Clearances of Rolling Element Bearings based on Vibration Signatures
Abstract
Several mechanisms of wear can occur in rolling element bearings (REBs). As the wear evolves, the vibration level will increase with the growth of internal clearance of bearings due to the variation of contact force and dynamic excitation. Therefore, for accurate fault severity diagnosis, internal clearance increase caused by inevitable wear has to be taken into account. In this paper, clearance variation caused by the wear of tapered rolling bearings (TRBs) is investigated experimentally and clearance estimation is carried out based on analysis of low frequency vibrations and the deviation of the fault features. An experimental study is ingeniously designed to simulate the wear evolutions and evaluate their influence on well-accepted envelope signatures according to vibrations measured from TRBs. The defective bearings were diagnosed in two aspects: the magnitude variation of vibrations in the low frequency band and the peak frequency deviation. The experimental results give out a signature shift with regard to the wear evolution, also vibration magnitude of the low frequency band grew remarkably. Therefore, unavoidable wear can be estimated and consequently the fault severity diagnosis improved.
Year
DOI
Venue
2018
10.23919/IConAC.2018.8749121
2018 24th International Conference on Automation and Computing (ICAC)
Keywords
Field
DocType
wear evolution,tapered roller bearings,low frequency vibrations,fault severity diagnosis
Magnitude (mathematics),Low frequency,Control theory,Contact force,Frequency deviation,Bearing (mechanical),Excitation,Low frequency band,Vibration,Engineering,Structural engineering
Conference
ISBN
Citations 
PageRank 
978-1-5386-4891-9
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Khalid Rabeyee101.01
Xiaoli Tang293.55
Yuandong Xu300.68
Dong Zhen462.20
Fengshou Gu52323.43
Andrew D. Ball624.82