Search

In this paper, the author analyzes the temperature effect of the frictionality subdomain and the principle of summing the friction temperatures in the aspect of the general structural-energy analysis of the laws of the evolution of rubbing surfaces. In accordance with the thermal dynamics of friction, the coefficient of friction (and the wear intensity) of friction pairs are single-valued functions of the maximum temperature of the friction surface, which is an integral factor that generally reflects the parameters of the friction process. In terms of the proposed triboergodynamics method, the coefficient of friction is estimated by the value of the latent (potential) energy. This energy uniquely and integrally characterizes the true structural state of an elementary tribosystem. The general structural-energy analysis of friction contact evolution shows for the initial region of compatibility the condition of equality of the potential and kinetic components of the initial energy of the adapted friction volume (an elementary tribosystem). Therefore, the value of the coefficient of compatible friction depends not only on the level of accumulated potential energy, but also on the temperature of the friction volume. An increase in the kinetic component of the internal energy density of this adaptive volume leads to a decrease in the structural component of the internal energy density and this involves a decrease in the coefficient of friction; i.e., a reduction of the friction resistance. The stationarity of the equilibrium state of the adaptive friction volume depends on the thermal (temperature) fields surrounding it, which is a practical factor in controlling the frictional characteristics of the friction process. [ABSTRACT FROM AUTHOR]

Copyright of Nordlit is the property of Universitetet i Tromsoe and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)