Theoretical Research of Kinematic Pair 'Shaft-Sleeve' of Friction Bearing of Gas-Compressor Unit at Variable Speeds of Shaft Rotation

摘要

The article is devoted to the development of theory of tribotechnical interaction of a kinematic pair "shaft-sleeve" of the friction bearing of a gas-compressor unit (GCU) on the basis of molecular physics of boundary friction. The aim of the research is achievement and securing of a high level of reliability and safety during the lifecycle of high-loaded friction supports of GCU. A mathematical model describing contact deformations in the pair "shaft-sleeve" of friction bearing has been proposed. The stage of dynamical sliding of the shaft in a bearing sleeve has been considered. The mathematical model of boundary friction of porous heterogeneous surfaces taking into account their geometrical, force and physical and mechanical parameters has been proposed. Lubricating ability of porous heterogeneous surfaces has been researched. The parameters determining contact interaction of surfaces of high-loaded friction support of GCU have been brought out.