A physics-based tribology model and parametric assessments of loss-of-lubrication using reduced-order system level analysis

Qingtao Yu, Sean Mclntyre, Robert Kunz, Liming Chang, Robert Bill

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

2 Scopus citations

Abstract

A newly-developed tribology model is integrated with a reduced-order heat transfer model to construct a simulation platform which is used to conduct system-level simulation of transient multi-physics loss-of-lubrication (LoL) operation of a high-speed gearbox. In the simulations, the processes of increasing gear bulk temperature and of oil depletion are transient. The former is captured by the reduced-order heat transfer model, and the latter is studied parametrically. A nominal problem is studied based on LoL tests of involute spur gears by NASA Glenn. The simulation results qualitatively capture the trend and scale of the "thermal run-away" observed in the experiments. Parametric analyses are carried out to demonstrate the capability of the simulation platform to guide design optimizations in various aspects, including gear configurations, material considerations and secondary emergency lubrication systems.

Original languageEnglish (US)
Title of host publication72nd American Helicopter Society International Annual Forum 2016
Subtitle of host publicationLeveraging Emerging Technologies for Future Capabilities
PublisherAmerican Helicopter Society
Pages2630-2645
Number of pages16
ISBN (Electronic)9781510825062
StatePublished - 2016

Publication series

NameAnnual Forum Proceedings - AHS International
Volume3
ISSN (Print)1552-2938

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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