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Erschienen in: Tribology Letters 1/2017

01.03.2017 | Original Paper

Theoretical Modelling of Film-Forming Mechanisms Under Transient Conditions: Application to Deceleration and Experimental Validation

verfasst von: Denis Mazuyer, Andre Ernesto, Juliette Cayer-Barrioz

Erschienen in: Tribology Letters | Ausgabe 1/2017

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Abstract

This paper proposes an analytical model for line (1D) and point contacts (2D), based upon the Ertel’s hypothesis to predict the evolution of film thickness in steady-state and transient conditions in elastohydrodynamic lubrication. This theoretical approach, applied to a velocity ramp at constant deceleration, is perfectly supported by experimental results in terms of film thickness distribution during the deceleration process and in terms of central film thickness at the vanishing of the entrainment velocity. This work emphasizes the role of the transport effects of the lubricant at the instantaneous entrainment velocity on the time and length scales at which the film thickness disturbances induced by the deceleration process occur until the complete halting of the surfaces.

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Metadaten
Titel
Theoretical Modelling of Film-Forming Mechanisms Under Transient Conditions: Application to Deceleration and Experimental Validation
verfasst von
Denis Mazuyer
Andre Ernesto
Juliette Cayer-Barrioz
Publikationsdatum
01.03.2017
Verlag
Springer US
Erschienen in
Tribology Letters / Ausgabe 1/2017
Print ISSN: 1023-8883
Elektronische ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-016-0801-9

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