UDC 629.1.07 STUDY OF ABRASIVE WEAR DYNAMICS IN THE CYLINDER-PISTON GROUP OF INTERNAL COMBUSTION ENGINES UNDER HIGH DUST CONCENTRATION CONDITIONS IN MINING ENVIRONMENTS

Abstract

The operation of BelAZ mining dump trucks in environments with high air dust concentration has a significant impact on the technical condition and service life of internal combustion engines (ICE). This study analyzes the interactions of dust particles with components of the cylinder-piston group, as well as with the air intake, lubrication, and cooling systems. Based on experimental observations and operational data, it has been proven that the presence of solid dust particles in the air, especially fine dispersed fractions smaller than 10 microns, significantly accelerates abrasive, adhesive, and corrosion-mechanical wear processes.

This study aims to provide a comprehensive assessment of the impact of dust-related factors on the reliability and performance characteristics of internal combustion engines in BelAZ mining dump trucks, as well as to apply digital modeling methods to predict the degradation of engine parameters under varying levels of dust contamination. The morphology and composition of dust particles were analyzed, a quantitative assessment of their abrasive wear effects was conducted, and recommendations were developed for optimizing air filtration systems to extend the service life of internal combustion engines under severe operating conditions.