No. 4, 1998 - Tribology in Industry

and systens, and the numbet lf si:ii:r:iific infi-,r'l:,lilietn
fi'orn this are is going to i:e larger Still rernains: the
problem of their applicability and searching f;rr the shoriest
way to practrcal design .urd constructing,
3. TR.IBOLOGICAL PROCESSES IN
S,IACHINE ELEMENTS
Contemporary classification of classical nlirchine elements
to: elements for r:onnection. elements for power
transmission, elenrents for rctational rnotions, and elements
of armatures anrl hydrauiic installations. did noi
diminish the global nced for analysis and identifica-tion
of arisen tribolcgical phencmena and proccsses. In the
frictional contitct zone of any machine element appelrr
complex non-stationary physical-chemical and mechar.l i-
cal processes, of stochastic nature, detemtined by the
non-unique irifluence of numerous factors. ! ei us rrcntion
only the rnost imp;rtanf oire::: pirysical-ciremicll and
mechanical properties of elerrelts in contact, rneciiuui,
roughness, ma.nufacturing accuracy, load (rnagnit',ide
and character of variatiort), spe ed and acceicration, tcr:',-
per.tture of ccntirct suliaces, *tc.
Processes on contact surfaces are, by their nalure, stochastic
and af ccntiriuos duration, Non-unique influence
of numerous factors Iearis to an-rbiguous results: nragnriricl,.r
of the friction force and wear.
Coinplexty of tribological phenornena in mircirine elements,
especially in elements for pcwer transnrissii-rn and
eiements for rotation:rl motions, Coes irot imply that the
processe s of friction and u,ear are totally out of control.
N'{oijern kno*'iedge and availabie iniormation of the