A study on helicopter main gearbox planetary bearing fault diagnosis

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dc.contributor.author Zhou, Linghao en
dc.contributor.author Duan, Fang en
dc.contributor.author Elasha, Faris en
dc.contributor.author Corsar, Micheal en
dc.contributor.author Mba, David en
dc.date.accessioned 2017-12-19T13:10:56Z
dc.date.available 2017-12-19T13:10:56Z
dc.date.issued 2017-12
dc.identifier.citation Zhou, L. et al. (2017) A study on helicopter main gearbox planetary bearing fault diagnosis. Applied Acoustics en
dc.identifier.issn 0003-682X
dc.identifier.uri http://hdl.handle.net/2086/15025
dc.description The file attached to this record is the author's final peer reviewed version.
dc.description.abstract The condition monitoring of helicopter main gearbox (MGB) is crucial for operation safety, flight airworthiness and maintenance scheduling. Currently, the helicopter health and usage monitoring system, HUMS, is installed on helicopters to monitor the health state of their transmission systems and predict remaining useful life of key helicopter components. However, recent helicopter accidents related to MGB failures indicate that HUMS is not sensitive and accurate enough to diagnose MGB planetary bearing defects. To contribute in improving the diagnostic capability of HUMS, diagnosis of a MGB planetary bearing with seeded defect was investigated in this study. A commercial SA330 MGB was adopted for the seeded defect tests. Two test cases are demonstrated in this paper: the MGB at 16000 rpm input speed with 180 kW load and at 23000 rpm input speed with 1760 kW load. Vibration data was recorded, and processed using signal processing techniques including self-adaptive noise cancellation (SANC), kurtogram and envelope analysis. Processing results indicate that the seeded planetary bearing defect was successfully detected in both test cases. en
dc.language.iso en en
dc.publisher Elsevier en
dc.subject Condition monitoring en
dc.subject Self-adaptive noise cancellation en
dc.subject Helicopter main gearbox en
dc.title A study on helicopter main gearbox planetary bearing fault diagnosis en
dc.type Article en
dc.identifier.doi https://doi.org/10.1016/j.apacoust.2017.12.004
dc.peerreviewed Yes en
dc.funder N/A en
dc.projectid N/A en
dc.cclicence CC-BY-NC en
dc.date.acceptance 2017-12-11 en

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