Helicopter gearbox bearing fault detection using separation techniques and envelope analysis

Zhou, L.; Duan, F.; Mba, David; Corsar, Michael; Greaves, Matthew J.; Sampath, Suresh; Elasha, Faris

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dc.contributor.author	Zhou, L.
dc.contributor.author	Duan, F.
dc.contributor.author	Mba, David
dc.contributor.author	Corsar, Michael
dc.contributor.author	Greaves, Matthew J.
dc.contributor.author	Sampath, Suresh
dc.contributor.author	Elasha, Faris
dc.date.accessioned	2017-04-20T08:57:54Z
dc.date.available	2017-04-20T08:57:54Z
dc.date.issued	2017-01-19
dc.identifier.citation	Zhou L, Duan F, Mba D et al., (2016) Helicopter gearbox bearing fault detection using separation techniques and envelope analysis, 2016 Prognostics and System Health Management Conference (PHM-Chengdu), 19-21 October 2016, Chengdu, China	en_UK
dc.identifier.issn	2166-5656
dc.identifier.uri	http://dx.doi.org/10.1109/PHM.2016.7819888
dc.identifier.uri	https://dspace.lib.cranfield.ac.uk/handle/1826/11787
dc.description.abstract	The main gearbox (MGB) is a crucial part of a helicopter. MGB bearings suffer intensively from stress and friction during flights hence concerns for their health condition and detecting potential defects become critical for the sake of operation safety and system reliability. In this study, bearing defects were seeded in the second epicyclic stage bearing of a commercial Class A helicopter MGB. Vibration and tachometer signals were recorded simultaneously for the purpose of fault diagnosis. The tests were carried out at different power and speed conditions for various seeded bearing defects. This paper presents a comparison of signal processing techniques employed to identify the presence of the defects masked by strong background noise generated from an operation helicopter MGB.	en_UK
dc.language.iso	en	en_UK
dc.publisher	IEEE	en_UK
dc.rights	Attribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subject	MGB	en_UK
dc.subject	bearing fault diagnosis	en_UK
dc.subject	signal separation	en_UK
dc.subject	Kurtogram	en_UK
dc.subject	envelope analysis	en_UK
dc.title	Helicopter gearbox bearing fault detection using separation techniques and envelope analysis	en_UK
dc.type	Conference paper	en_UK