The paper presents a calculation model for assessing the wear resistance of radial plain bearings with a polymer coating and a groove, taking into account inertial effects and nonlinear properties of the medium under steady-state friction. Clarified analytical dependencies have been developed to improve the accuracy of calculations of the hydrodynamic characteristics of the bearing. The main objective of the study is to create a multifactorial model that takes into account the influence of the bearing geometric parameters (the presence and configuration of the groove), the properties of the polymer coating and the inertial force. The model allows predicting the bearing life in real operating conditions, taking into account the influence of various factors, which increases the accuracy of design and optimization of the design. The results of the work are aimed at improving the operational reliability of plain bearings due to more accurate prediction of their wear resistance and optimization of design parameters.

Keywords: modified design, nonlinear factors, polymer coating, axial groove, load capacity, friction coefficient, increased wear resistance

The methods and approaches to reduce the wear of bearings and blades of electric generators are analyzed to increase the service life of the equipment, improve its reliability and efficiency. An analysis of the factors affecting wear is given, including mechanical, temperature and operational loads. Calculations are performed confirming the effectiveness of using modern materials, improved lubrication systems and optimized process modes. It is shown that the comprehensive implementation of the proposed solutions can significantly reduce the wear rate, reduce maintenance and repair costs, and ensure stable generator performance. The recommendations presented can serve as a basis for upgrading existing equipment and designing new power plants.

Keywords: building structures, metal structures, energy facilities, stress-strain state, technical expertise