MODELLING OF WEAR UNDER THE CONDITIONS OF HIGH SLIDING SPEEDS
Journal Title: Tribologia - Year 2018, Vol 280, Issue 4
Abstract
The paper presents a probabilistic model of the wear process of machine elements under the conditions of high-speed friction using the thermo-kinetic theory of fracture. The definition of model parameters is based on the probabilistic-physical approach. The model is presented in a discrete form and adapted for using computer simulation methods that require spatio-temporal sampling of computational models. The analysis of calculation results shows that the dominant factor that affects the stress-strain state, and therefore the wear of the tribological system processes, is the rate of change of the friction coefficient from static to dynamic values. The rate of change in the friction coefficient was proposed as an effectiveness criterion of using methods for increasing the wear resistance of systems under the conditions of high-speed friction.<br/><br/>
Authors and Affiliations
Ruslan SOROKATYI, Sylwester KORGA, Michał CHARLAK, Ryszard KOZERA
INFLUENCE OF LUBRICATING ADDITIVES ON THE SELECTED RHEOLOGICAL PROPERTIES OF GREASE
This paper presents the results of an investigation of the influence of lubricating additives on the rheological properties of greases. Mineral and synthetic lubricants containing a variable amount of additive (PTFE, tal...
Badania właściwości adhezyjnych stali oraz tworzyw sztucznych w kontekście zastosowania ich na węzły tarcia
W pracy przedstawiono badania właściwości adhezyjnych stali i polimerów w kontekście zastosowania ich na węzły tarcia. Najpowszechniejszą metodą oceny właściwości adhezyjnych ciał stałych jest pomiar kąta zwilżania. Pomi...
SURFACE TOPOGRAPHY ANALYSIS OF SLEEVES WITH MICRO-GROOVES OF SLIDE MICRO-BEARINGS
This paper presents the sleeve surface topography containing microgrooves measured by virtue of Atomic Force Microscopy NT-206 constructed in MTM Belarus, and a T8000-R60 Hommeltester profile measurement gauge. The topog...
EXPERIMENTAL STUDIES ON THE INFLUENCE OF ABRASIVE MATERIALS ON THE WEAR OF HARD-WEARING STEELS
The paper presents the wear properties of hard-wearing steels and structural steels used in mining and transport machines exposed to the aggressive action of the environment, which have been determined experimentally in...
INCREASING THE LIFETIME OF A COUPLE OF CUTTING BLADES FOR PIPE
This investigation seeks to increase the lifetime of a couple of cutting blades pipe. The average life of this pair of blades is about two working shifts, and these blades have fracture and wear problems, which result in...