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Title: Tribology of the ring–bore conjunction subject to a mixed regime of lubrication
Authors: Mishra, P.C.
Rahnejat, Homer
King, P.D.
Keywords: Piston compression ring
Ring deformation
Elastohydrodynamic lubrication
Asperity contacts
Issue Date: 2009
Publisher: © IMechE / Professional Engineering Publishing
Citation: MISHRA, P.C., RAHNEJAT, H. and KING, P.D., 2009. Tribology of the ring–bore conjunction subject to a mixed regime of lubrication. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 223(4), pp. 987-998.
Abstract: This paper provides a detailed analysis of the compression ring–bore/liner conjunction. The analysis includes ring–bore conformability and global in-plane deformation of ring fitted in situ. The analysis for fitted ring in an out-of-round bore shows very good agreement with precise measurements, using a coordinate measuring machine. The analysis also includes the lubricated conjunction under a transient regime of lubrication, taking into account combined elastohydrodynamics and asperity interactions. The transient nature of the tribological conjunction has been demonstrated, particularly the prevalent mixed/boundary regime of lubrication at the top and bottom dead centres. The analysis is applied to a high performance motorbike engine subjected to very high impact loads and engine speeds of the order of 13 000 r/min. Furthermore, the predictions of the model show good conformance to the measurements of friction reported by other research workers.
Description: This article has been published in the journal, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science [© PEP]. The definitive version is available at: http://dx.doi.org/10.1243/09544062JMES1220
Version: Published
DOI: 10.1243/09544062JMES1220
URI: https://dspace.lboro.ac.uk/2134/4621
ISSN: 0954-4062
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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