A comparative study of the effectiveness of vibration and acoustic emission in diagnosing a defective bearing in a planetry gearbox

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dc.contributor.authorElasha, Faris
dc.contributor.authorGreaves, Matthew J.
dc.contributor.authorMba, David
dc.contributor.authorFang, Duan
dc.date.accessioned2016-12-13T09:23:59Z
dc.date.available2016-12-13T09:23:59Z
dc.date.issued2016-09-12
dc.description.abstractWhilst vibration analysis of planetary gearbox faults is relatively well established, the application of Acoustic Emission (AE) to this field is still in its infancy. For planetary-type gearboxes it is more challenging to diagnose bearing faults due to the dynamically changing transmission paths which contribute to masking the vibration signature of interest. The present study is aimed to reduce the effect of background noise whilst extracting the fault feature from AE and vibration signatures. This has been achieved through developing of internal AE sensor for helicopter transmission system. In addition, series of signal processing procedure has been developed to improved detection of incipient damage. Three signal processing techniques including an adaptive filter, spectral kurtosis and envelope analysis, were applied to AE and vibration data acquired from a simplified planetary gearbox test rig with a seeded bearing defect. The results show that AE identified the defect earlier than vibration analysis irrespective of the tortuous transmission pathen_UK
dc.identifier.citationElasha F, Greaves M, Mba D, Fang D, A comparative study of the effectiveness of vibration and acoustic emission in diagnosing a defective bearing in a planetry gearbox, Applied Acoustics, Volume 115, 1 January 2017, Pages 181–195en_UK
dc.identifier.issn0003-682X
dc.identifier.urihttp://dx.doi.org/10.1016/j.apacoust.2016.07.026
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11144
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectVibration analysisen_UK
dc.subjectAcoustics emissionen_UK
dc.subjectSignal separationen_UK
dc.subjectHelicopter gearboxen_UK
dc.subjectHUMsen_UK
dc.titleA comparative study of the effectiveness of vibration and acoustic emission in diagnosing a defective bearing in a planetry gearboxen_UK
dc.typeArticleen_UK

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