Dong, L., Lewis, R., Li, C.X. et al. (2 more authors) (2015) Finite element assessment of the temperature field couple under joule heat and friction heat between a third rail and collector shoe. Journal Of Engineering Tribology , 229 (9). 1086 - 1094. ISSN 13506501
Abstract
Based on the finite element software COMSOL Multiphysics 4.3b, a temperature field model for an aluminium/stainless steel composite third rail and a copper impregnated carbon collector shoe contact with coupling of joule heat and friction heat was established. A method of coupling the two kinds of heat was developed, the temperature fields were calculated, and the maximum coupled temperature change under different electric current, normal forces, sliding velocities and sliding distances were studied. The results show that the temperature distribution expands around the contact area in a descending tendency at positions closer to the electric contact area and the temperature gradients are higher; the maximum coupled temperature increases with an increase of electric current; with an increase of normal force, the maximum coupled temperature initially decreases then increases; the maximum coupled temperature increases initially then gradually becomes stable with an increase of sliding distance; an optimal normal force range exists in frictional sliding with an electric current, at which the maximum coupled temperature is at its lowest; joule heat and friction heat are competitive with each other. When normal force is lower, the joule heat becomes the main heat source, but when normal force is greater, mechanical friction heat becomes the main heat source.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Institution of Mechanical Engineers. This is an author produced version of a paper subsequently published in Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Friction heat; joule heat; temperature field couple; finite element assessment |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 27 Jan 2016 16:21 |
Last Modified: | 24 Mar 2018 21:57 |
Published Version: | http://dx.doi.org/10.1177/1350650115573974 |
Status: | Published |
Publisher: | SAGE Publications |
Refereed: | Yes |
Identification Number: | 10.1177/1350650115573974 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:92563 |