Abstract
The investigation of a tribo-contact dynamic, friction and wear prediction are the main objectives of the materials tribology. In this paper, the external dynamic of a friction process is investigated by means of a definition of the dynamic characteristics of tribological objects. According to the automatic control theory, the dynamic system of tribological objects is a subject of a parametric identification. In the simplest case, these parameters are a damping coefficient and a free frequency (natural oscillation frequency).The proposed method allows the use of an amplitude-frequency response for the estimation of dynamic coefficients of a friction interaction. In addition, this approach makes it possible to evaluate the surface characteristics of tribological pairs (for example, asperity) and to determine the bifurcational components of a friction. This method is the basis of the processes investigations of evolution tribological characteristics.
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