KEYWORDS:
Internal combustion engine, piston rings; wear; resource.
INTRODUCTION
The service life of a complex technical system is the calendar duration of operation of this
system until destruction or another limiting state. The limiting state of the technical system can
be established according to changes in parameters, according to safety conditions, according to
economic indicators, according to obsolescence, if necessary, the first overhaul, etc.
Failure of parts and working bodies of machines under normal operating conditions occur due to
various types of physical wear: fatigue fractures, creep of materials, mechanical wear, corrosion,
erosion, cavitation, ageing of the material, etc...
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