Effect of dynamic properties of interacting subsystems on evolution of selective transfer formation in friction units

Introduction. Selective transfer is a typical example of the self-organization processes in tribosystems. In this case, joint surfaces of the servovite film are formed in the contact area, which changes fundamentally the friction and wear conditions. To form selective transfer in the area of mating surfaces, some power of the irreversible transformations of the input energy is needed, which depends on the elastic-dissipative properties of the contact surfaces.Materials and Methods. The mathematical model of the dynamic system considering the evolutionary changing servovite film is given. Its formation depends on the phase path of the irreversible transformations power in the area of surface matching, and it is represented by the Volterra integral operator of the second kind.Research Results. The outcome analysis including dependences of the servovite film formation on the dynamic parameters of interacting subsystems is provided. The mathematical simulation of the evolution of the friction unit properties with the formation or destruction of the servovite film is first considered.Discussion and Conclusions. During the evolutionary process of the servovite film formation, the dynamic coupling parameters generated in the friction unit, change. Consequently, the dynamic properties of the system also change. The tribosystem dynamics is first considered under the process of forming the selective transfer.