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Design curves for temperature rise in sliding elliptical contacts...

by Dinesh G Bansal, Jeffrey L Streator
Publication Type
Journal
Journal Name
Tribology International
Publication Date
Page Numbers
1638 to 1650
Volume
42
Issue
9

The issueofthermalmanagementoftwocomponentsslidingagainsteachotherplaysanimportantrole
in theproperfunctioningofthemachinecomponents.Jaeger,usinghisandBlok’shypotheses,
presented thecurvestocomputetheaverageandthemaximumtemperatureriseinsquareandband
shaped interfaces.Itisoftenobservedthatdesignersrefertothosecurveseveninscenarioswhenthe
contactgeometryisdifferent.Inmanycases,amoreaccuratetemperaturedistributionisneededand
using aconstantheatpartitiontoevaluatethetemperatureriseattheinterfacecanleadtoover-design
or under-designofthecomponents.Inthisstudytheauthorsapplyarecentlydevelopedmethodology
of obtainingthetemperaturedistributionattheinterfaceoftwoslidingsemi-infinitebodiesby
partitioningtheheatbetweentheminsuchawaythatthetemperatureateverypointintheinterfaceis
same forboththebodies.Ellipticalcontactswithasemi-ellipsoidalheatdistributionareconsidered.In
order toaiddesigners,curvefitequationsarepresentedtocalculatemaximumtemperatureandaverage
temperatureriseinnon-dimensionalformoverawiderangeofPecletnumbers,thermalconductivity
ratios andellipticityratios.