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Tribology Letters
Erschienen in: Tribology Letters 1/2013

01.01.2013 | Original Paper

An Advanced Rough Surface Continuum-Based Contact and Sliding Model in the Presence of Molecularly Thin Lubricant

verfasst von: Antonis I. Vakis, Andreas A. Polycarpou

Erschienen in: Tribology Letters | Ausgabe 1/2013

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Abstract

A model of molecularly thin lubricant layer behavior for rough, sliding contact is presented in this work as a function of lubricant layer morphology. Building on previous work by the authors where the lubricant layer was assumed to be uniform in thickness and morphology, lubricant contributions to contact are presently treated at the asperity level and the effects of lubricant bonding ratio and coverage are accounted for. Effective stiffnesses for lubricated asperities are used to calculate the bearing and shear forces, while variable surface energy is modeled at the asperity level and used within an improved continuum adhesive formulation. Contributions from asperities in lubricant and solid contact for partial coverage are determined within the context of a statistical mechanics model. The proposed model can be used to study the mixed nanolubrication regime expected during light contact or “surfing” recording in magnetic storage, where sustained nanolubricant contact would partially deplete mobile molecules from the contact interface.
Vorheriger Artikel Hydrodynamic Friction Reduction in a MAC–Hexadecane Lubricated MEMS Contact
Nächster Artikel Modelling the Effect of Steady State Wheel Temperature on Rail Wear

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Metadaten
Titel
An Advanced Rough Surface Continuum-Based Contact and Sliding Model in the Presence of Molecularly Thin Lubricant
verfasst von
Antonis I. Vakis
Andreas A. Polycarpou
Publikationsdatum
01.01.2013
Verlag
Springer US
Erschienen in
Tribology Letters / Ausgabe 1/2013
Print ISSN: 1023-8883
Elektronische ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-012-0060-3

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