For the description and wear prediction in tribicouplings there are theoretical formulae and also empirical models. Most of well-known regulations may be used only under specific conditions of contacting. The purpose of this work is the investigation of tribicoupling “piston guide – cylinder liner” in an internal combustion engine (ICE). In particular, for that there were carried out experimental investigations on a tribometer realizing a reciprocal motion of piston and cylinder liner samples. The results of experimental investigations were analyzed with the use of a wear model which is the most applicable for the description of this type of tribocouplings. This model is based on the combination of energetic theory and molecularmechanical method with a precise definition of friction surface topography parameters. Such a modified model of friction and wear allows combining the prognostication of a layer worn with fatigue theory that gives a possibility of its use as applied to the life analysis of any reciprocating tribosystem.
“piston-cylinder” tribocoupling, wear model, topography of friction surface
1. Meng, H.C. Wear modelling: evaluation and categorization of wear models / H.C. Meng // PhD The-sis, University of Michigan. Ann Arbor. MI. - 1994.
2. Hsu, S.M. Wear prediction for metals / S.M. Hsu, M.C. Shen, A.W. Ruff // Tribology International. - 1997. - Vol. 30. - № 5. - P. 377-383.
3. Meng, H.C. Wear models and predictive equa-tions: their form and content / H.C. Meng, K.C. Ludema // Wear. - 1995. - Vol. 181-183. - № 2. - P. 443-457.
4. Fleischer, G. Energetische Methode der Bestimmung des Verschleißes / G. Fleischer // Schmierungstechnik. -1973. - Band 4. - P. 9-12.
5. Lazarev, V. Estimation of the tribotechnical parameters of the «piston skirt-cylinder liner» contact interface from an IC-engine for decreasing the mechanical losses / V. Lazarev, K. Gavrilov, A. Doikin , G. Vorlaufer, J. Sequard-Base // WIT Transactions on Ecology and the Environment. - 2014. - Vol. 190. - № 1. - P. 625-635.
6. Ye, Z. An experimental investigation of piston skirt scuffing: a piston scuffing apparatus, experiments, and scuffing mechanism analyses / Z. Ye, C. Zhang, Y. Wang, H.S. Cheng, S. Tung, Q.J. Wang, X. He // Wear. - 2004. - Vol. 257. - № 1-2. - P. 8-31.
7. Fouvry, S., An energy description of wear mechanisms and its applications to oscillating sliding contacts / S. Fouvry, T. Liskiewicz, P. Kapsa, S. Han-nel, E. Sauger // Wear. - 2003. - Vol. 255. - № 1-6. - P. 287-298.
8. Greenwood, J. Contact of nominally flat surfaces / J. Greenwood, J. Williamson // Proceedings of the Royal Society A. - 1966. - Vol. 295. - № 1442. - P. 300-319.
9. Archard, J., The wear of metals under unlubricated conditions / J. Archard, W. Hirst // Proceedings of Royal Society London A. - 1956. - Vol. 236, № 1206. P. 397-410.
10. Jisa, R. Tribologische Wechselwirkungen von selbstschmierenden Gleitelementen basierend auf Kupferlegierungen und Graphit-Öl-Schmierstoffen / R. Jisa // PhD Thesis, Vienna University of Tech-nology. - 2007.
