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Experimental Modeling of Wearing the Friction Surfaces of “Piston-Cylinder” Tribounit

  • A. DoikinEmail author
  • K. Gavrilov
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

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 

Notes

Acknowledgements

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).

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.South Ural State UniversityChelyabinskRussia

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