MHD Journal Bearing in a Magnetic Field Perpendicular to Its Axis : 2nd Report, Experiment with Mercury

Sasada, Tadashi; Kurosaki, Yasuo; Kamijo, Ken

doi:10.1299/jsme1958.17.1652

Cited by 5 publications

(9 citation statements)

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“…A MHD partial laser bump texture journal bearing is derived from Figure 2 with bump region and without regions of land with slip. Magnetic field is applied to the MHD journal bearing 37,38 perpendicular to its axis and inclined at an angle ( θ b ) to the line of maximum film thickness. The analysis is incorporated with Reynolds boundary conditions.…”

Section: Mathematical Model and Analysismentioning

confidence: 99%

“…The instability threshold is extended for dimensionless low current values at which MHD journal bearing loads are relatively low. Sasada et al 37 developed a MHD journal bearing model in which a magnetic field is applied to the journal bearing perpendicular to its axis and inclined at an angle to load line. MHD bearing model viability in applications is described and theoretical models are presented for an infinitely long journal bearing.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of magnetohydrodynamic partial slip laser bump texture slider and journal bearing

Rao

Rani

Mohamed

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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A model of magnetohydrodynamic partial slip laser texture bearing (slider and journal) is developed. The influence of laser bump texture and slip laser texture partial configuration on the magnetohydrodynamic performance analysis of bearing is presented. An electrically conducting fluid is confined to bearing surfaces under uniform magnetic field perpendicular to slider bearing and inclined to the line of maximum film thickness to journal bearing. A one-dimensional analysis based on the narrow groove theory is considered to evaluate the nondimensional pressure distribution in bearing. Results of the nondimensional load capacity and coefficient of friction of magnetohydrodynamic partial laser bump texture and partial slip laser texture bearing configurations are analyzed. Partial slip configuration under MHD lubrication without laser bump texture brings in the performance improvement.

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Section: Mathematical Model and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of magnetohydrodynamic partial slip laser bump texture slider and journal bearing

Rao

Rani

Mohamed

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…These classes of lubricants are of great importance for fluid film bearing systems operating at elevated temperature environments such as nuclear and space engineering applications. 1,2 When the liquid metals interact with the magnetic field, the Lorentz forces are generated in the liquid metals. The magnitude of Lorentz force is a function of electrical conductivity and flow rate of the lubricant.…”

Section: Introductionmentioning

confidence: 99%

“…They noticed that improvement in the bearing load capacity under the influence of applied magnetic field. Sasada et al 1,2 used the electrically conducting fluid such as liquid metal (mercury) as a bearing lubricant and reported that the presence of transverse magnetic fluid on liquid metal lubricant, enhances the value of load capacity. MHD journal bearing subjected to radially applied magnetic field is proposed by Kamiyama.…”

Section: Introductionmentioning

confidence: 99%

“…The review of literature [1][2][3][4][5][6][7] concerning the area of the MHD (electrically conducting lubricant in a magnetic field) bearings clearly indicates that most of the studies are mainly limited to the case of the hydrodynamic bearing systems and uncompensated journal bearings. There is no information yet available in the area of hybrid slot entry journal bearing dealing with influence of electrically conducting lubricant and considering thermal effect.…”

Section: Introductionmentioning

confidence: 99%

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Influence of bearing surface irregularities on hybrid slot-entry journal bearing with electrically conducting lubricant

Sahu

Sharma

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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This study concerns with the numerical simulation of a hybrid slot entry journal bearing lubricated with electrically conducting lubricant under the influence of magnetic field for both thermal and isothermal conditions. The Navier–Stokes equation has been used to formulate the flow of electrically conducting lubricant through slot restrictor and combining the Lorentz force in the equations of motion, together with the Ohm’s law and Maxwell equations. Further, the effect of surface irregularities on bearing surface is considered to analyse the performance of the slot-entry bearing. The surface irregularities asperity profile has been modelled in both axial as well as circumferential directions. Finite element method is used to solve the Modified MHD Reynolds equation. To compute the bearing performance characteristic parameters, a MATLAB source code based on Gauss–Seidel iteration method has been developed. A comparative numerical analysis has been carried out for an electrically conducting lubricant, Newtonian lubricant, bearing surface having irregularities and bearing with smooth surface. The numerically simulated results indicate that considering the bearing surface irregularities and MHD effects enhances the value of fluid film damping coefficients [Formula: see text] and the value of minimum fluid film thickness [Formula: see text].

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Analysis of finite magnetohydrodynamic journal bearings

Malik

Singh

1980

Wear

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MHD Journal Bearing in a Magnetic Field Perpendicular to Its Axis : 2nd Report, Experiment with Mercury

Cited by 5 publications

References 0 publications

Analysis of magnetohydrodynamic partial slip laser bump texture slider and journal bearing

Analysis of magnetohydrodynamic partial slip laser bump texture slider and journal bearing

Influence of bearing surface irregularities on hybrid slot-entry journal bearing with electrically conducting lubricant

Analysis of finite magnetohydrodynamic journal bearings

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