Thermal boundary conditions to simulate friction layers and coatings at sliding contacts

Oleksii Nosko

doi:10.1016/j.ijheatmasstransfer.2018.06.027

Thermal boundary conditions to simulate friction layers and coatings at sliding contacts

Abstract

A brief review of the thermal boundary conditions specified at sliding interfaces was performed. New thermal boundary conditions were derived aimed at solving problems of sliding with account of surface layers representing friction layers and tribological coatings. Based on the assumption of linear temperature distributions in the surface layers, the proposed conditions enable one to simplify simulations by eliminating the surface layers from consideration and merging thermally the bulk bodies. A problem of non-stationary heat conduction in two sliding semispaces with the proposed conditions at their interface was solved analytically. The particular cases of the solution were shown to coincide with the exact temperature expressions obtained for different well-known boundary conditions. The temperature influence of the basic parameters was analysed in dimensionless form on example of a decelerative sliding between a semispace covered with a surface layer and a semispace of constant temperature. An estimation of the error introduced by the proposed conditions was done. It was found that the error is below 1% for a wide class of friction layers and coatings met in practice.

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Oleksii Nosko dr hab. inż.
- Politechnika Białostocka

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DOI:: Digital Object Identifier (open in new tab) 10.1016/j.ijheatmasstransfer.2018.06.027
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Category:: Articles
Type:: artykuły w czasopismach
Published in:: INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER no. 127, pages 1128 - 1137,
ISSN: 0017-9310
Language:: English
Publication year:: 2018
Bibliographic description:: Nosko O.: Thermal boundary conditions to simulate friction layers and coatings at sliding contacts// INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER -Vol. 127, (2018), s.1128-1137
DOI:: Digital Object Identifier (open in new tab) 10.1016/j.ijheatmasstransfer.2018.06.027
Verified by:: Gdańsk University of Technology