A computational system model for gearbox loss-of-lubrication

Sean Michael McIntyre, Qingtao Yu, Robert Francis Kunz, Liming Chang, Robert Bill

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

A multi-physics, multi-scale numerical simulation technique is presented for modeling gearboxes operating under loss-of-lubrication conditions. Accordingly, the tool includes components for contact mechanics, tribology associated with EHL through boundary lubrication regimes, CFD modeling of the gearbox flow, conduction within the gears, housing and other gearbox components, and free convection to the external environment. These component physics models are coupled in a fashion that accommodates their disparate space and time-scales. This paper describes each sub-model in detail, and the space-time coupling strategies used. Results are presented for a spur-gear test stand operated at NASA Glenn Research Center. The physics of the eventual runaway temperature excursions subsequent to loss-of-lubrication are captured. Model shortcomings and attendant future work are identified. Copyright

Original languageEnglish (US)
Title of host publication70th American Helicopter Society International Annual Forum 2014
PublisherAmerican Helicopter Society
Pages137-147
Number of pages11
ISBN (Print)9781632666918
StatePublished - Jan 1 2014
Event70th American Helicopter Society International Annual Forum 2014 - Montreal, QC, Canada
Duration: May 20 2014May 22 2014

Publication series

NameAnnual Forum Proceedings - AHS International
Volume1
ISSN (Print)1552-2938

Other

Other70th American Helicopter Society International Annual Forum 2014
CountryCanada
CityMontreal, QC
Period5/20/145/22/14

Fingerprint

Lubrication
Physics
Spur gears
Tribology
Natural convection
NASA
Gears
Mechanics
Computational fluid dynamics
Computer simulation
Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

McIntyre, S. M., Yu, Q., Kunz, R. F., Chang, L., & Bill, R. (2014). A computational system model for gearbox loss-of-lubrication. In 70th American Helicopter Society International Annual Forum 2014 (pp. 137-147). (Annual Forum Proceedings - AHS International; Vol. 1). American Helicopter Society.
McIntyre, Sean Michael ; Yu, Qingtao ; Kunz, Robert Francis ; Chang, Liming ; Bill, Robert. / A computational system model for gearbox loss-of-lubrication. 70th American Helicopter Society International Annual Forum 2014. American Helicopter Society, 2014. pp. 137-147 (Annual Forum Proceedings - AHS International).
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McIntyre, SM, Yu, Q, Kunz, RF, Chang, L & Bill, R 2014, A computational system model for gearbox loss-of-lubrication. in 70th American Helicopter Society International Annual Forum 2014. Annual Forum Proceedings - AHS International, vol. 1, American Helicopter Society, pp. 137-147, 70th American Helicopter Society International Annual Forum 2014, Montreal, QC, Canada, 5/20/14.

A computational system model for gearbox loss-of-lubrication. / McIntyre, Sean Michael; Yu, Qingtao; Kunz, Robert Francis; Chang, Liming; Bill, Robert.

70th American Helicopter Society International Annual Forum 2014. American Helicopter Society, 2014. p. 137-147 (Annual Forum Proceedings - AHS International; Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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McIntyre SM, Yu Q, Kunz RF, Chang L, Bill R. A computational system model for gearbox loss-of-lubrication. In 70th American Helicopter Society International Annual Forum 2014. American Helicopter Society. 2014. p. 137-147. (Annual Forum Proceedings - AHS International).