EXPERIMENTAL INVESTIGATION OF FRICTION CHARACTERISTICS IN TRIBO'FATIGUE SYSTEMS "ROLLER - SHAFT", "ROLLER - RING", "ROLLER - ROLLER"

Komissarov V.V., Candidate of Technical Sciences, Assistant Professor of the Department, Belarusian State University of Transport, Gomel, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

In article the experimental analysis of laws of influence of the pressure caused by extracontact loading, on change of the moment of a friction and rolling resistance coefficient is carried out. It is shown that cyclic pressure can (depending on test conditions) both to raise, and to reduce rolling resistance coefficient (to 60 %). It is revealed that the greatest deviation of rolling resistance coefficient in tribo-fatigue system from rolling resistance coefficient in similar pair of a friction is observed at the greatest absolute value of a parity of amplitude of cyclic pressure and the greatest value of contact pressure.

tribo-fatigue system, contact load, non-contact load, stress-strain state, amplitude of cycle stress, coefficient of rolling resistance, friction setting

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