Tribological performance of positive deterministic textured surfaces in parallel sliding lubricated contacts: Effect of texture size and height

Panigrahi, Dillip K; Sarangi, Mihir

doi:10.1177/1350650119897479

Cited by 11 publications

(13 citation statements)

References 38 publications

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“…Texture grooves on the bearing surface reduced the friction values compared with the untextured bearing. 24 The main reason for friction reduction in a texture-based bearing was the micro-hydrodynamic effect. The loadcarrying capacity over the textured and untextured bearings is depicted in Figure 5(b).…”

Section: Simulation Resultsmentioning

confidence: 99%

Three-dimensional thermohydrodynamic analysis of the effects of textured main bearing on lubricant density and viscosity in internal combustion engines

Ahmadkhah

Kakaee

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper is focused on the effects of the textured surface along with lubricant feed pressure and temperature variation to calculate the lubrication characteristics (viscosity and density) of the main bearings in internal combustion engines. In a three-dimensional numerical analysis simulation, a thermohydrodynamic model was developed, which considered the thermal effects of the fluid–solid interface components. In the analysis, the viscosity–temperature equation was used at different lubricant feed pressures and temperatures. By using color image segmentation methods, the density and viscosity contour on the two rotating walls (shaft and bearing wall) in the cavitation regions were quantitatively and qualitatively compared. The textured surface and lubricant feed pressure had significant effects on reducing the cavitation region over the shaft and bearing surface. Compared with the untextured bearing, the presence of texture over the bearing surface in the same temperature and pressure conditions increased the amount of total heat transfer to the lubricant fluid in the range of the maximum value of 73% and minimum value of 11%. Promoting the average heat transfer coefficient was a factor in reducing thermal stresses and high-temperature points in the rigid parts of the bearing system.

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Section: Simulation Resultsmentioning

confidence: 99%

Three-dimensional thermohydrodynamic analysis of the effects of textured main bearing on lubricant density and viscosity in internal combustion engines

Ahmadkhah

Kakaee

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…14,15 Texturing is an ultra-precise process to create micro-morphology with specific shape and size characteristics on the surface of materials. [16][17][18] At present, it has been applied to cutting tools, 19 bearing sleeves, 20 mechanical metamaterial design and tensile materials, 21,22 solar cells, 23,24 computer hard disks, 25,26 handwritten input devices, 27 etc., and has obtained good results, and the studied surface texturing patterns are mainly pit-shaped and dent-shaped. 28 Rahman et al 29 and Venkateswara Babu et al 30 found in their experimental study that surfaces with texture had more stable friction coefficients than non-textured surfaces, and the friction coefficients and wear were significantly lower than those of non-textured specimens.…”

Section: Introductionmentioning

confidence: 99%

Study of the effect of laser textured rotors on the starting performance of metal–rubber mating pairs under different lubricating media environments

Wang,

Huang,

Qian

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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To solve the problem of premature failure of the rubber stator of the screw pump due to wear, reduce the frictional resistance torque of the screw pump to solve the problem of difficulty in starting after the shutdown of the screw pump production system in Daqing Oilfield. The effects of micron dot texture and lubricating medium on the tribological properties of 42CrMo metal and acrylonitrile–butadiene rubber mating surfaces were studied by theoretical analysis and tribological tests. The friction coefficient, wear amount, and rubber wear morphology were used as the measurement indexes of drag reduction, wear resistance, and wear degree, respectively. The results showed that the best combination of texture area ratio and the lubricating medium was 10% silicone grease, the friction coefficient and wear amount were reduced by 11% and 10.7%, respectively, compared with untextured, and the main order of chip storage and oil supply effect was 10% > 5% > 15%.

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“…Sharma N et al 25 found that the bearing capacity of textured bearing increased with coupling stress only under low eccentricity ratio, and reasonable design of textured surface can improve bearing performances. [26][27][28] The bearing capacity of smooth bearing enhanced with the increase of the coupling stress. Gajrani et al 29 have the controlled textured applied on the cutting tool to effectively reduce cutting force, cutting temperature, friction coefficient, and tool wear.…”

Section: Introductionmentioning

confidence: 99%

Research on the operation mechanism and stability of marine textured directional valve

You

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Based on the vibration force analysis of the marine electromagnetic directional valve and Newton's Second Law, the mathematical model of the displacement of the valve rod under vibration excitation state is established. The influence of vibration parameters and viscous damping coefficient on its operation stability is calculated and analyzed. Results show that the vibration stability can be improved by increasing the clearance viscous damping of the directional valve, and the textured surface affecting on the viscous force and flow resistance characteristics. All of these provide a basis for stability optimization. The on-board experiment of marine electromagnetic directional valve in real-time working condition is operated, the performance difference between the textured and untextured valve are analyzed. The results show that the pressure adjustment time and vibration impact amplitude of two kinds of directional valves decrease with the increase of oil supply pressure, and increase with the increase of navigation speed. The standard deviation of flow fluctuation of untextured directional valve increases with the increase of oil supply pressure, while the flow fluctuation of micro-textured directional valve first decreases and then increases. The unique interface characteristics of the micro-textured directional valve make the pressure adjustment time, the standard deviation of flow pulsation and the vibration impact amplitude of the micro-textured valve smaller than that of the untextured one.

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Tribological performance of positive deterministic textured surfaces in parallel sliding lubricated contacts: Effect of texture size and height

Cited by 11 publications

References 38 publications

Three-dimensional thermohydrodynamic analysis of the effects of textured main bearing on lubricant density and viscosity in internal combustion engines

Three-dimensional thermohydrodynamic analysis of the effects of textured main bearing on lubricant density and viscosity in internal combustion engines

Study of the effect of laser textured rotors on the starting performance of metal–rubber mating pairs under different lubricating media environments

Research on the operation mechanism and stability of marine textured directional valve

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