Forecasting the consumption of spare parts in machines based on the content of wear particles in oil

Irgashev, B. A.; Irgashev, A

doi:10.3103/s1068366615050062

Cited by 15 publications

(13 citation statements)

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“…In rolling friction, the load on the abrasive particle located in the wedge-shaped gap depends on the normal load applied to the bearing elements, with an increase in which the depth of penetration of abrasive particles to the friction surfaces increases. At the same time, according to the molecular mechanical theory of friction and wear [11], the wear of friction surfaces also increases. Abrasive particles crushed to such a size do not have force interaction with friction surfaces and there is no further wear process with them.…”

Section: Resultsmentioning

confidence: 99%

Assessment of the concentration of wear products of bearing elements

Juraeva

Djabbarova

2022

J. Phys.: Conf. Ser.

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The article presented by the author considers the greatest wear along the arc of the contact of the bearing ring with the ball is observed on the surface where there is more slippage, i.e. on the face of the groove of the rings. The problem often lies in the low durability of the bearing supports. The authors of this article are invited to analytically evaluate the durability of the bearing with additional consideration of the regularity of changes in the concentration of wear products in the oil of the unit. Uneven load distributions and different elastic constants of materials used for the outer ring and balls, and further with the subsequent improved correction of the resource, which are carried out in accordance with modern requirements. Such a correction involves not only taking into account the impact of lubrication conditions and oil contamination on the bearing life, but also modifying the resource in relation to the fatigue stress limit to the dynamic equivalent load, taking into account many factors of influence.

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Section: Resultsmentioning

confidence: 99%

Assessment of the concentration of wear products of bearing elements

Juraeva

Djabbarova

2022

J. Phys.: Conf. Ser.

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“…-heat consumption for evaporation (cal/sm min); P -turbulent heat exchange; Вn -heat flow into the soil; sm 2 /min; b B -heat flow to water; sm 2 /min;  -the amount of heat released in biochemical processes; 600 = L cal/sm 2 internal amount of the sum of evaporators; E-is the sum of flashes, (E) = cal/sm 2 This equation is obtained for the temperature distribution in the atmosphere and soil layers: These equations are written for temperature changes in two media:…”

Section: The Equation Of Thermal Equilibriummentioning

confidence: 99%

“…Radioactive elements from the manufacturing industry can also be added to it by air. For example, currently irrigated lands are exposed to fluoride compounds [2]. The source was phosphorus fertilizers and industrial waste.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of the theory of salt and salt dust

Juraeva

Mamasolieva

Maxmudova

2022

IOP Conf. Ser.: Earth Environ. Sci.

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This article describes that at the moment the level of the Aral Sea and the volume of water has decreased rapidly. The desiccation of the sea affected the entire region of its former water area as a whole: ports were closed, fishing in industrial volumes stopped, since the salinity of the water increased almost 10 times, and many species of flora and fauna could not survive in dramatically changed conditions. The climate of the Aral Sea has also changed – winter has become colder and longer, and summer has become even drier and hotter. Salinization of unsalted arable lands and further salinization of saline soils increases every year due to wind dust and salt from the Aral Sea and other saline soils. To maintain the fertility of irrigated saline soils, their salinization is washed annually (mainly in autumn and winter). To do this, the lands are inspected and washed away. During the washing process, part of the water is absorbed into the ground and carries away part of the salt. Most of the water leaves the cultivated fields and returns to drainage channels, from which to water supply channels for irrigation of crops, and then to rivers. The distribution of the rate and concentration of salt and sand deposition depends on the height and time above the level, it was determined that a number of positive works were carried out to improve the condition of the soil, its rational use and increase soil fertility, as well as to maintain the fertility of irrigated saline soils, their washing.

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“…For this reason, the modelling of the gearing must consider the friction surfaces in the gears and the resulting changes in the geometry of the wheel and gear. Mathematical evolutionary models of gearing are of great practical importance both in the theoretical study of material properties and technologies and in the practical application and production of gearing elements [15].…”

Section: Introductionmentioning

confidence: 99%

Method for modeling the process of wear of gear teeth

Ishmuratov

Hamroev

Kurbonov

et al. 2022

J. Phys.: Conf. Ser.

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When modeling gears by means of roller analogues it is necessary to take into account that the degree of slippage is equal to zero in the meshing pole of the gears, in thecontact zone ofinitial circles of the gears. The greatest slippage occurs between the tooth head of the master gear and the tooth foot of the driven gear, and between the tooth head of the driven gear and the tooth foot of the driven gear. Thus, the simulation of the wear process of gear wheels with roller counterparts is achieved by ensuring equality of geometric and kinematic parameters (radii of contact point curvature, degree of relative slippage of the surfaces, friction paths) and contact pressure.

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Forecasting the consumption of spare parts in machines based on the content of wear particles in oil

Cited by 15 publications

References 0 publications

Assessment of the concentration of wear products of bearing elements

Assessment of the concentration of wear products of bearing elements

Mathematical modeling of the theory of salt and salt dust

Method for modeling the process of wear of gear teeth

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