Performed investigation goal is analysis of lubrication influence on frictional
characteristics using boundary friction model. This model bases on Gercy – Streebeck curve,
i.e. frictional coefficient dependence from Sommerfeld number. This modeling shows that
wear and pollution of frictional contact reduce lubricating ability and efficiency because of
boundary friction at wearing and viscous friction at pollution. Correspondent change of
engine characteristics depends on used oil quality, dopant choice and frictional contact state.
To estimate the influence of these factors some math models were created that characterize
contact state on friction. Criterial model based on similarity theory allows perform wear
forecasting and some standards synthesize for qualification tests. Lubricant influence on wear
conditions on hardness reducing because of Rebinder effect. Estimation of corrosion wear
influence based on equilibrium condition for corrosion solution and dissolved material
diversion
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Moiseev Alexander Alexandrovich
Candidate of Technical Sciences
Email: chimmotolog_ma@gmail.com
State Research Institute of Chimmotology
Moscow, Russian Federation
