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К вопросу определения толщины смазочного слоя при решении…
Инженерный журнал: наука и инновации
# 12·2016 7
On determining the lubricant film thickness
for solving tribological problems
© G.A. Timofeev, S.I. Krasavin
Bauman Moscow State Technical University, Moscow, 105005, Russia
One main task of modern domestic and foreign engineering is to improve the reliability
and durability of the wheeled, tracked, hoisting-and-conveying vehicles, aircraft and
space technology. The structure of these machines includes the transmission consisting of
the engine, cylindrical, conical, planetary and wave gears. The article discusses the re-
search of changing the thickness of the oil film in a heavily loaded contact by modeling
the gear operation using a roller analogy. Nomograms, considering the assumptions of
the contact-hydrodynamic theory of lubrication and allowing for the total rolling veloci-
ty, maximum Hertzian contact stress, relative radius of contacting surface curvature, the
sliding velocity of contacting surfaces were constructed on the friction machine on the
basis of performed experiments. The resulting nomograms allow reducing the costs of de-
sign, performing full-scale experimental research, and in the future taking into account
this methodology in computer-aided design of gearings and friction units.
Keywords:
reliability and durability of the machine, transmission, gears, lubricant, mod-
eling using a roller analogy.
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