Experimental Modeling of Wearing the Friction Surfaces of “Piston-Cylinder” Tribounit
Experimental studies of friction and wear for piston skirt and cylinder liner materials at hydrodynamic mode with using a friction machine have been carried out. Influence of initial roughness and lubricant on a final micro-relief of contacting surfaces after experiment was investigated. The experimental studies were carried out according to a “roller-pad” scheme. Three brands of motor oil from the main groups for diesel engines were used. The first is from the group of oils made from the sulphurous oil. The second is from the group of oils containing alkylsalicylate additives. The third is from the group of oils with packages of dealkylation phosphate additives. The wear rate and the friction coefficient in each experiment were determined. Experiment results show that the parameters of the equilibrium roughness do not depend on their initial values, but depend on the applied engine oil. The hypothesis, which explains the reasons of relief change of friction surfaces at hydrodynamic mode, is proposed.
Keywords“Piston-cylinder” tribounit Friction surfaces wear Surface roughness parameters
South Ural State University is grateful for financial support of the Ministry of Education and Science of the Russian Federation (grant No. 9.7881.2017/8.9).
- 2.Javorova J, Mazdrakova A, Andonov I, Radulescu A (2016) Analysis of HD journal bearings considering elastic deformation and non-newtonian Rabinowitsch fluid model. Tribol Ind 38(2):186–196Google Scholar
- 5.Rozhdestvensky A, Gavrilov Y, Doikin K (2019) Influence of location of lubrication sources on hydromechanical characteristics of diesel crankshaft bearings. Lect Notes Mech Eng 983–991Google Scholar
- 6.Gavrilov K, Doikin A, Izzatulloev M, Goritskiy Y (2019) Numerical model of mechanical interaction of rough surfaces of journal bearings of piston engine. Lect Notes Mech Eng 993–1002Google Scholar
- 10.Lazarev VE, Usoltsev NA (2010) The wear rate of antifriction layer of bearings of internal combustion engine under boundary friction conditions. Tyazheloe Mashinostroenie 9:18–22Google Scholar
- 11.Lazarev VE, Gavrilov KV, Doikin, AA, Sequrd-Base J, Vorlaufer G (2014) Estimation of the tribotechnical parameters of the piston skirt-cylinder liner contact interface from IC-engine for decreasing the mechanical losses. In: 1st International conference on energy production and management in the 21st century: the quest for sustainable energy. WIT Trans Ecol Environ 190(1):625–635Google Scholar
- 14.Hebda M, Chichinadze A (1989) Handbook of tribotechnology: theoretical foundations. Mashinostroenie, MoscowGoogle Scholar
- 15.Goritskiy Y, Ismailova Y, Gavrilov K, Rozhdestvensky Y, Doikin A (2015) A numerical model for mechanical interaction of rough surfaces of the “piston-cylinder liner” tribosystem. FME Trans 43:249–253Google Scholar
- 17.Rozhdestvensky Y, Gavrilov K, Doykin A, Mukhortov I (2010) Influence of viscosity-temperature properties of motor oils on hydromechanical characteristics of piston-cylinder tribosystem. Dvigatelestroyeniye 2:23–26Google Scholar
- 18.Rozhdestvensky Y, Gavrilov K, Doykin A, Levanov I (2013) Numerical and experimental investigations of “piston-cylinder” tribosystem of diesel engine. In: 5th world tribology congress, vol 2. WTC, pp 1255–1258Google Scholar