Modelling of external dynamic of the friction engagement

Abstract eng:
Evolution of tribocontact, forecasting of friction and wear of tribopair materials are one of the main tasks of the tribology. In this paper the problems of external friction dynamics were explored, in particular investigations of dynamic characteristics of tribological objects. In the context of automatic control theory, the system of this type is object of parametric identification, wherein in the simplest case, the parameters are damping coefficient and unit speed of rotation. This approach allows to use amplitude-frequency characteristics for evaluating the dynamic coefficients of friction interaction. The proposed method is the basis of the investigations of processes of evolution tribological characteristics. The suggested approach provides the measuring instrument Tribal-T, whereon the investigated tribopairs, which have a slip-step scheme of friction process, are fixed.

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