Feasibility study on using thioether as an emergency backup lubrication system on a large helicopter main gearbox

Journal article


Duan, F, Tee, S, Corsar, M, Healey, A, Kleine-Beek, W and Mba, D (2016). Feasibility study on using thioether as an emergency backup lubrication system on a large helicopter main gearbox. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science.
AuthorsDuan, F, Tee, S, Corsar, M, Healey, A, Kleine-Beek, W and Mba, D
Abstract

The oil lubrication system is a critical part of the helicopter main gearbox (MGB) and this is evident in the many accidents and incidents over the last 30 years. On a category A rotorcraft, a regulatory requirement mandates the MGB to sustain operation for at least 30 minutes following the loss of the primary oil lubrication pressure. The aim of this study was to undertake a comparative investigation into the performance of mist lubrication, using commercially available thioether (MCS-293™), on a category A helicopter MGB under loss of oil conditions. Experimental observations highlighted that the high-speed input module of the MGB attained the highest temperature and was a limiting factor to continued gearbox operation under loss of oil conditions. Results showed that by routing thioether mist through existing galleries within the MGB a lower rate of temperature increase was achieved, in comparison with a dry-run condition

Year2016
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
PublisherSAGE Publications (UK and US)
ISSN0954-4062
Digital Object Identifier (DOI)doi:10.1177/0954406216640573
Publication dates
Print06 Apr 2016
Publication process dates
Deposited21 Dec 2016
Accepted01 Jan 2016
Accepted author manuscript
License
CC BY 4.0
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https://openresearch.lsbu.ac.uk/item/87488

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