Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Problems of the quantitative assessment of the friction couple contact area

V.O. Belavin, Yu.V. Brylkin, S.V. Zaletaev, A.L. Kusov, V.V. Pavlikov, A.A. Potapov, V.A. Tsarkova

Central Institute of Machine Building

DOI: 10.26456/pcascnn/2024.16.XXX

Original article

Abstract: The results of our research of the surface of steel disks before and after friction are presented. Problems of the friction couple contact area estimation were under consideration. The results of searching a universal criterion of the friction couple contact area quantitative estimation are discussed. Using optical and scanning tunneling microscopy allows studying the surface profile at the micro- and nano-scales. An approach for determination of the contact area between bodies is proposed on the basis of the fractals theory. Such an approach allows to describe the heat transfer between bodies (conductive at contacts and radiant in pores heat exchange), to define the dependence of the friction force on the applied external force. The offered technique for the quantitative estimation of the surface structure at the micro- and nano-scales by means of the fractal theory will allow improving the accuracy of the spacecrafts thermal modes calculation as well as parameters of the knots of friction in them. This, in turn, will positively affect reliability and durability of the future spacecrafts. Improvement of methods in our further work will be aimed at studying tribological properties of the robotic products under the influence of the space factors and validation of the numerical modeling of the friction and heat exchange between mobile knots using results of experiments.

Keywords: tribology, thermal modes, robotics, steel surface, microscopy, fractal analysis, friction couple

  • Vladimir O. Belavin – Deputy head of heat exchange and aerogasdynamic complex, Central Institute of Machine Building
  • Yuriy V. Brylkin – Ph. D., Head of heat exchange and aerogasdynamic complex, Central Institute of Machine Building
  • Sergey V. Zaletaev – Ph. D., Deputy head of department, Central Institute of Machine Building
  • Andrey L. Kusov – Ph. D., Head of laboratory, Central Institute of Machine Building
  • Vladimir V. Pavlikov – Сhief specialist, Central Institute of Machine Building
  • Alexander A. Potapov – Deputy chief of department, Central Institute of Machine Building
  • Victoria A. Tsarkova – Head of sector, Central Institute of Machine Building

Reference:

Belavin, V.O. Problems of the quantitative assessment of the friction couple contact area / V.O. Belavin, Yu.V. Brylkin, S.V. Zaletaev, A.L. Kusov, V.V. Pavlikov, A.A. Potapov, V.A. Tsarkova // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2024. — I. 16. — P. __-__. DOI: 10.26456/pcascnn/2024.16.XXX. (In Russian).

Full article (in Russian): download PDF file

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