Study of the Conditions for the Formation of an Adsorption Lubrication Mode of Heavily Loaded Friction Couples with Modeling in a Laboratory Setup

Леванцевич, М. А.; Kharchenko, M. V.; Dema, R. R.

doi:10.3103/s106836661904007x

Cited by 4 publications

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“…In the course of further experimental studies, a laboratory setup (SMC-2 friction machine) is used [5][6][7] in order to physically simulate the formation of a lubricating film in a heavily loaded friction pair. To study the change in the thickness of an oil film formed in the "roller-roller" friction pair we useaweight-of-coating test.…”

Section: Research Materials and Methodsmentioning

confidence: 99%

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Determination of Lubricant Layer Thickness with an Allowance for Oil Absorption Capacity of Contacting Surfaces

et al. 2021

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The paper describes an analytical model for calculating an extreme pressure lubricant layer thickness with an allowance for oil absorption capacity of contacting surfaces. The model is practically assessed in laboratory conditions. The experimenting work shows that the speed of the relative displacement of contacting surfaces and the oil absorption capacity of their rough layers contributes to the thickening of the lubricant. The analysis of the results shows that it is the oil absorption capacity of rough layers that has the strongest influence on the change in the thickness of the extreme pressure lubricant layer.

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Section: Research Materials and Methodsmentioning

confidence: 99%

“…The friction machine (Fig. 2a) consists of actual mechanical and measuring units (item 1), a unit for processing and transforming information (item 2) and a switchboard cubicle (item 3) [7].…”

Section: Research Materials and Methodsmentioning

confidence: 99%

Determination of Lubricant Layer Thickness with an Allowance for Oil Absorption Capacity of Contacting Surfaces

et al. 2021

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“…Elastic deformation at contact may appear if the external loads do not exceed the values N uec corresponding to unsaturated elastic contact [6][7][8][9][10][11] where For unsaturated elastic contact, the frictional coefficient in the slip bearing is…”

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confidence: 99%

Life of Slip Bearings in the Supporting Roller System of Section Rolling Mills

et al. 2021

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Methods for determining the bearing capacity and extreme pressure properties of lubricants used in heavy-loaded tribodynamic couplings of metallurgical machines and units

et al. 2021

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To solve contact problems related to the study of the interaction between a lubricated or non-lubricated friction pair, we used standard equipment - friction machines and tribometers. However, the use of factory-made research equipment does not always allow us to accurately answer the questions concerning the tribotechnical characteristics of friction and wear processes under specific operating conditions. A review of the literature on the technical capabilities of testing machines showed that their main drawback is the inability to programmatically set the modes of acceleration of the tribological system and tracking slippage in real-time. The study revealed the need to develop a methodology for investigating the extreme pressure properties of liquid lubricants in the tribocoupling acceleration mode, which is caused primarily by the effect of high contact loads acting in the contact areas of friction pairs, e.g. gears, rolling bearings, etc. when technological machines and equipment start and reach the operating speed. The paper considers a modernized friction machine capable of programmatically setting acceleration modes and investigating tribodynamic processes of lubricated frictional couplings. We developed a technique that makes it possible to evaluate the efficiency of a liquid lubricant during acceleration and its effect on the wear of a lubricated contact based on the use of the modernized friction machine.

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Study of the Conditions for the Formation of an Adsorption Lubrication Mode of Heavily Loaded Friction Couples with Modeling in a Laboratory Setup

Cited by 4 publications

References 2 publications

Determination of Lubricant Layer Thickness with an Allowance for Oil Absorption Capacity of Contacting Surfaces

Determination of Lubricant Layer Thickness with an Allowance for Oil Absorption Capacity of Contacting Surfaces

Life of Slip Bearings in the Supporting Roller System of Section Rolling Mills

Methods for determining the bearing capacity and extreme pressure properties of lubricants used in heavy-loaded tribodynamic couplings of metallurgical machines and units

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