Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/32840

Title: Transient thermal analysis of mixed-elastohydrodynamic contact of high performance transmission in a dry sump environment
Authors: Fatourehchi, Ehsan
Mohammadpour, Mahdi
Theodossiades, Stephanos
Rahnejat, Homer
Keywords: High performance racing transmission
Dry sump lubrication system
Gear thermal analysis
Conductive heat transfer
Convective heat transfer
Issue Date: 2018
Publisher: © IMechE. Published by SAGE Publications
Citation: FATOUREHCHI, E. ...et al., 2018. Transient thermal analysis of mixed-elastohydrodynamic contact of high performance transmission in a dry sump environment. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 233(2), pp. 326-338
Abstract: Fuel efficiency is one of the main concerns in the optimization of modern racing transmissions. The dry sump transmissions are the preferred choice for high performance racing applications. While it provides adequate lubricant for gear contacts, it minimises the system churning losses, and therefore enhances the system efficiency. An important aspect is assessing its thermal performance in removing the generated frictional heat. The generated heat in the highly loaded high shear contacts of racing transmissions should be dissipated through use of directed impinging oil jets and in an air-oil mist environment. The paper presents an integrated tribological and 3D computational fluid dynamics analysis for a spur gear pair, incorporated into an overall finite element model to evaluate the quantity of generated heat and its removal rate from the rotating gear surfaces. Furthermore, the temperature distribution in the circumferential direction is predicted and used to evaluate transient temperature distribution over representative race laps. Such an approach has not hitherto been reported in literature.
Description: This paper was accepted for publication in the journal Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology and the definitive published version is available at https://doi.org/10.1177/1350650118775802
Version: Accepted for publication
DOI: 10.1177/1350650118775802
URI: https://dspace.lboro.ac.uk/2134/32840
Publisher Link: https://doi.org/10.1177/1350650118775802
ISSN: 2041-305X
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

Files associated with this item:

File Description SizeFormat
Mohammadpour_JET-17-0369.pdfAccepted version1.43 MBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.