Mathematical regularities of changes in the characteristics of the friction process of a porous composite material based on copper containing oil with graphene particles
https://doi.org/10.22405/2226-8383-2021-22-1-390-402
Abstract
The paper presents the results of a study of the sliding friction processes of a porous copper-based material impregnated with lubricating oil with dispersed particles of fluorinated graphene. Mathematical regularities of changes in the characteristics of the friction interaction are established. It is shown that the regularities of changes in the average friction force have a
sigmoid-step character. Experimental results have been obtained showing that with an increase in the concentration of aggregates from flakes of fluorinated graphene in the lubricating oil,
the average friction force and coefficient of friction decrease, while a good anti-friction effect is observed. It is shown that the average work of the friction force, and consequently the energy
losses due to friction, when adding 0.01% of aggregates from fluorinated graphene flakes to the lubricating oil decreases by 3721 j, and when adding 0.1% — by 4098 j. It was found that the
average coefficient of friction when adding 0.01% of fluorinated graphene flake aggregates to the lubricating oil decreases by 27%, and when adding 0.1% — by 30%.
About the Authors
Alexander Dzhalyulyevich Breki
Peter the Great St. Petersburg Polytechnic University, Institute of Problems of Machine Science of the Russian Academy of Sciences
Russian Federation
Russian Federation
сandidate of technical sciences, associate professor
Sergey Georgievich Chulkin
Saint Petersburg State Marine Technical University
Russian Federation
Russian Federation
doctor of technical sciences, professor
Alexey Georgievich Kolmakov
IMET RAS
Russian Federation
Russian Federation
doctor of technical sciences, professor
Olga Vladimirovna Kuzovleva
Russian StateUniversity of justice
Russian Federation
Russian Federation
candidate of technical Sciences, docent
Alexandr Evgenyevich Gvozdev
Tula State Pedagogical University L.N. Tolstoy
Russian Federation
Russian Federation
doctor of engineering, professor
Evgeny Vladimirovich Mazin
LLC NPO «Graphene materials»
Russian Federation
Russian Federation
Alexey Mikhaylovich Kuzmin
JSC «TSKBM»
Russian Federation
Russian Federation
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Review
For citations:
Breki A.D., Chulkin S.G., Kolmakov A.G., Kuzovleva O.V., Gvozdev A.E., Mazin E.V., Kuzmin A.M. Mathematical regularities of changes in the characteristics of the friction process of a porous composite material based on copper containing oil with graphene particles. Chebyshevskii Sbornik. 2021;22(1):390-402. (In Russ.) https://doi.org/10.22405/2226-8383-2021-22-1-390-402
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