Mathematical regularities of the sliding friction process of a porous material based on iron impregnated with lubricating oil with dispersed particles of fluorinated graphene

Бреки, А. Д.; Chulkin, S. G.; Добровольский, Николай Михайлович; Кузовлева, Ольга Владимировна; Гвоздев, А. Е.; Мазин, Евгений Владимирович

doi:10.22405/2226-8383-2021-22-1-378-389

Chebyshevskii Sbornik

2021

DOI: 10.22405/2226-8383-2021-22-1-378-389

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Mathematical regularities of the sliding friction process of a porous material based on iron impregnated with lubricating oil with dispersed particles of fluorinated graphene

А. Д. Бреки

S. G. Chulkin

Николай Михайлович Добровольский

et al.

Abstract: Николай Михайлович Добровольский -доктор физико-математических наук, профессор, Тульский государственный педагогический университет им. Л.Н. Толстого (г. Тула).Ольга Владимировна Кузовлева -кандидат технических наук, доцент, Российский государственный университет правосудия (г. Москва).

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Analytic representation of the friction force-temperature relations under the conditions of frictional interaction of spatially-ordered rubbers having steel surface

Бреки

2023

Science Intensive Technologies in Mechanical Engineering

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The analysis of the known friction-temperature laws is carried out in the article. A mathematical model of external friction of F.F. Ling and E. Seibel coefficient dependence on temperature, activation energies of formation and destruction of friction bonds and other factors, developed using the equations of absolute rates of chemical reactions, is analyzed. An approxima-tion of this model is implemented in temperature independence case for Bowden and Tabor shear strength. A mathematical model, describing sliding friction force-temperature relation under frictional interaction of spatially ordered rubbers hav-ing steel surface, is proposed. A distinctive feature of the proposed mathematical model is that it can simultaneously describe areas of constancy, friction force linear and nonlinear scaling under temperature changes. The testing and verification of the developed mathematical model is fulfilled through digitizing and processing experimental data, obtained by the fric-tional interaction of bars, made of spatially ordered natural rubber and spatially ordered rubber SCS-50 with a prism made of steel st.3. Analyzing the approximating dependencies, it is found, that for spatially ordered natural rubber, the maximum value of the friction force is 2,0 kgf under the temperature of approximately 37,6 ℃, and the average value of the friction coefficient is 0,987, for spatially ordered natural rubber, the maximum value of the friction force is 1.84 kgf under the tem-perature of approximately 31,4 ℃, while the average value of the coefficient of friction is 0,853. New tribotechnical charac-teristics have been introduced making possible to give a more detailed characterization of the frictional interaction in the rubber-steel system for the cases of temperature changes.

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Analytic representation of the friction force-temperature relations under the conditions of frictional interaction of spatially-ordered rubbers having steel surface

Бреки

2023

Science Intensive Technologies in Mechanical Engineering

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Mathematical regularities of the sliding friction process of a porous material based on iron impregnated with lubricating oil with dispersed particles of fluorinated graphene

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Analytic representation of the friction force-temperature relations under the conditions of frictional interaction of spatially-ordered rubbers having steel surface

Analytic representation of the friction force-temperature relations under the conditions of frictional interaction of spatially-ordered rubbers having steel surface

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