Adhesion-hydrodynamic (AHD) model of friction

Stelmakh, Oleksandr

doi:10.3103/s1068366614040102

Cited by 1 publication

(2 citation statements)

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“…However, this contradicts the fundamental theories of boundary layer adsorption. Based on the identified fundamental phenomena of extrusion and rarefaction in boundary layers of lubricant, we propose an adhesion-deformation-hydrodynamic (ADH) model of friction and wear [17]. The ADH model explains that the primary cause of adhesion interaction and destruction of friction surfaces is the desorption of boundary layers in diffuser elastically deformed discrete micro-and macro-curved contacts.…”

Section: Introductionmentioning

confidence: 99%

“…The task also involves determining the tribological properties of surfaces after finishing and establishing their relationship with the initial roughness parameters. The tribological properties of the surface are determined through laboratory tests using specialized equipment, for example, as in [17]. These tests ensure that identical samples experience the same type of tribological contact under the same initial conditions throughout the friction process of the model shaft along the model bearing, including during a single revolution.…”

Section: Introductionmentioning

confidence: 99%

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Criteria for Evaluating the Tribological Effectiveness of 3D Roughness on Friction Surfaces

Stelmakh,

Fu,

Kolienov

et al. 2024

Lubricants

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A new technique for finishing the surfaces of friction pairs has been proposed, which, in combination with the original test method, has shown a significant influence of the initial roughness configuration (surface texture) on friction and wear. Two types of finishing processing of the shaft friction surfaces were compared, and it was found that the friction and wear coefficients differ by more than 2–5 and 2–4 times, respectively. Based on a new methodology for analyzing standard roughness parameters, the tribological efficiency criteria (in the sense of reducing friction and wear) are proposed for the initial state of the friction surface of a radial plane sliding bearing shaft relative to the friction direction, which is consistent with its frictional characteristics. Comparison of the laboratory test results with the surface tribological efficiency criteria showed that these criteria are very promising for controlling existing technologies and optimizing new technologies for friction surface finishing in various friction systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%