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The paper presents mathematical models developed on the experimental studies whose purpose to determine the relationship between studied factors and changes occurring in the surface layer. Developed polynomials allowed to determine expected changes appearing under the influence of external forces in the surface layer of working elements as a kinematic pair with a conformal contact. Therefore, it is possible to control the operation process to minimize changes in the surface layer, so the structural features of kinematic pair stay unchanged in the entire period of work.

Mathematical models of changes in the surface layer of frictional pairs as a tool to optimize the wear process