Modeling of External Dynamics of Frictional Interaction Using the Elastic System Stability Theory

Abstract

This work is focused on investigation into the surface structure of tribological pairs. The parametric identification is used to determine the main characteristics of the external dynamics of frictional interaction, namely, the damping coefficient, the natural oscillation frequency, and the dynamic friction coefficient. This method provides an opportunity to study in the real-time mode the evolution of friction processes of tribological pairs, which are accompanied by a change in the dynamic parameters. In turn, taking into account the influence of bifurcation processes associated with the loss of stability of individual elements of microcontacts, it is possible to match the dynamic characteristics of friction interactions with the measure of surface roughness of tribopair specimens.