Experimental study of hydrodynamic pressure distribution in oil lubricated two-axial groove journal bearing

Binu, K G; Yathish, K. R.; Mallya, Ravindra; Shenoy, Bhaskar; Rao, D. Srikanth; Pai, Radha R.

doi:10.1016/j.matpr.2015.07.321

Cited by 20 publications

(9 citation statements)

References 12 publications

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“…It is noteworthy that all the previously derived and recorded values reflect a notable consistency and much accordance with their counterparts in the research introduced by Binu et. al [6]. However, it is clear that the recoded values relating to the error percentage in the research at hand appear to be notably lower than their peers in the above mentioned research of Binu.…”

Section: Theoretical Resultsmentioning

confidence: 78%

“…Other researches have focused their studies on the geometrical design of the two axial-groove journal bearing. Among those concerned with that issue were Binu et.al [6]. Having researched into the hydrodynamic pressure distribution in oil lubricated two-axial groove journal bearing, they have come out with the result that there was a noticeable difference between the experimentally recorded pressures and those recorded numerically.…”

Section: Introductionmentioning

confidence: 99%

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Design and Setup for a Journal Bearing Universal Test Rig

Marey

Hegazy

Aly

2018

Port-Said Engineering Research Journal

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A multi-function test rig was designed to facilitate experimental studies for journal bearing boundary lubrication behaviour improvement. The test rig components were designed and manufactured. It consisted of drive motor, drive shaft, bearing assembly, foundation, automatic control and data acquisition system. Fabrication and setup of the test rig were conducted taking into account industrial safety and risk assessment. Components have been individually tested and finally, overall test was performed, and was found to be quite satisfactory. The test rig unit is capable of being used for a wide range of journal bearing lubrication tests e.g., bearing material composition, lubricant additives, speed variation and bearing geometry study. Several test trials were conducted, with the aim of verifying that the mathematical outcomes derived were in complete accordance with the experimental results reached. Those endeavours have culminated in a guarantee that the practically assembled target test rig was in harmony with the inferred mathematical calculations on which the structuring process was primarily based.

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Section: Theoretical Resultsmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Design and Setup for a Journal Bearing Universal Test Rig

Marey

Hegazy

Aly

2018

Port-Said Engineering Research Journal

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“…Apart from theoretical validation, the maximum theoretical pressure is compared with experimental pressure 40 for two-groove journal bearing in Table 3. Obtained nondimensional maximum pressure is converted to dimensional pressure and then compared with available experimental maximum pressure.…”

Section: Resultsmentioning

confidence: 99%

“…In earlier research, it was mentioned that the difference in theoretical and experimental results were due to losses in the loading system. 40 Also, variation in viscosity due to temperature variation and inertia effect has not been considered in the theoretical model, which perhaps contributes to higher theoretical pressure than the experimental.…”

Section: Resultsmentioning

confidence: 99%

Effect of couple stress parameter on steady-state and dynamic characteristics of three-lobe journal bearing operating on TiO₂ nanolubricant

Kumar

Kakoty

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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Steady-state and dynamic performance parameters of three-lobe fluid film bearing, operating on TiO2 nanolubricant have been obtained. The effective viscosity for a given volume fraction of TiO2 nanoparticle in base fluid is obtained by using Krieger–Dougherty viscosity model. Various bearing performance parameters are obtained by solving remodeled Reynolds equation, which includes couple stress parameter. The stiffness and damping coefficients are also obtained for different values of the couple stress parameter. Results show a significant rise in the nondimensional load-carrying capacity and flow coefficient while there is a decrease in friction variable. It also reveals a significant improvement in the dynamic coefficient of bearing.

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“…The reason was that it didn't have the ability to measure dynamic pressure variation. The experimentally recorded pressures using the conventional approach were lower than the theoretical pressures by 20% (Binu, et al, 2015). Calculating the pressure distribution and load capacity of journal bearing by analytical method and finite element method was implemented by researchers among them were Nuruzzama et al, 2010.…”

Section: Literature Reviewmentioning

confidence: 99%

Computational Investigation of Oil Film Pressure Profile in Journal Bearings

Marey

Aly

Hegazy

2018

Port-Said Engineering Research Journal

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Lubrication of journal bearing in ship shafting systems is facing a problem in the slow speed range, where oil film created pressure depends on shaft speed, among many other factors. Hence, the slower the speed the lower the pressure will be, which shifts lubrication from hydrodynamic to boundary one. An experimental journal bearing test rig (JBTR) has been designed and established to simulate typical journal bearing for ship's shafting system. A theoretical validation study has been undertaken and good agreement with the test rig pressure readings was found. The test rig is capable of carrying out wide range of tests to investigate oil film pressure profile dependence on many parameters regarding design modification, oil properties, material properties, and many other factors. A new Computational Fluid Dynamic (CFD) model has been built for the sake of coupling future experimental investigations with computerized ones. The CFD model was created using the well-known CFD package Ansys ver. 15.0. The effect of shaft speed on oil film pressure profile was studied using the CFD model as a verification test. The model results were contrasted to the experimental results and an acceptable deviation range was found.

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Experimental study of hydrodynamic pressure distribution in oil lubricated two-axial groove journal bearing

Cited by 20 publications

References 12 publications

Design and Setup for a Journal Bearing Universal Test Rig

Design and Setup for a Journal Bearing Universal Test Rig

Effect of couple stress parameter on steady-state and dynamic characteristics of three-lobe journal bearing operating on TiO₂ nanolubricant

Computational Investigation of Oil Film Pressure Profile in Journal Bearings

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Experimental study of hydrodynamic pressure distribution in oil lubricated two-axial groove journal bearing

Cited by 20 publications

References 12 publications

Design and Setup for a Journal Bearing Universal Test Rig

Design and Setup for a Journal Bearing Universal Test Rig

Effect of couple stress parameter on steady-state and dynamic characteristics of three-lobe journal bearing operating on TiO2 nanolubricant

Computational Investigation of Oil Film Pressure Profile in Journal Bearings

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Product

Resources

About

Effect of couple stress parameter on steady-state and dynamic characteristics of three-lobe journal bearing operating on TiO₂ nanolubricant