A design method for externally pressurized journal bearings

Ghigliazza, R.; Michelini, Rinaldo C.; Rossi, L. P.

doi:10.1016/0041-2678(70)90116-8

Cited by 6 publications

(4 citation statements)

References 2 publications

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“…where for an orifice restrictor, C s2 is the dimensionless design parameter of the restrictor. The restrictor design parameter ( C s2 ) is a function of various parameters such as discharge coefficient (ψ d ), supply pressure ( p s ), orifice diameter (d), reference fluid film thickness (h r ), and lubricant properties (μ, ρ) as shown in the following relation 7,44 :…”

Section: Finite Element Modelingmentioning

confidence: 99%

“…The restrictor design parameter false( C ¯ s 2 false) is a function of various parameters such as discharge coefficient false( ψ d false), supply pressure false( p s false), orifice diameter false( d false), reference fluid film thickness false( h r false), and lubricant properties 0.25em false( μ , ρ false) as shown in the following relation 7,44 :…”

Section: Governing Equationsmentioning

confidence: 99%

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Influence of magnetorheological lubricant behavior on the performance of annular recessed orifice compensated non-textured/textured thrust pad bearing

Kumar

Sharma

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Fluid film bearings operated with smart lubricants have been successfully used to enhance the lubricating performance. This article proposes a computational model to analyze the influence of magnetorheological lubricant on the performance of an annular recessed hybrid thrust bearing system. The governing modified Reynolds equation for circular thrust pad orifice compensated bearing is solved by finite element method. Further, for simulating the flow behavior of magnetorheological lubricant, a constitutive relation for the Bingham model Dave equation, has been used. The numerical results reveal that using magnetorheological lubricant improves the loading carrying capacity and damping coefficient of both annular and circular recess hybrid thrust bearings. Additionally, bearing lubricated with magnetorheological lubricant requires a lesser quantity of flow and hence less pumping power.

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Section: Finite Element Modelingmentioning

confidence: 99%

Section: Governing Equationsmentioning

confidence: 99%

Influence of magnetorheological lubricant behavior on the performance of annular recessed orifice compensated non-textured/textured thrust pad bearing

Kumar

Sharma

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Another design method was put forward by Ghigliazza et al (1970). This is a direct computation method which includes hydrodynamic effects of re-circulatory flow in the pockets.…”

Section: Comments On Literaturementioning

confidence: 99%

Design guidelines for hydrostatic journal bearings

Martin

2006

Industrial Lubrication and Tribology

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Purpose -To provide an up-to-date review and design guide for industry users and designers of hydrostatic fluid film journal bearings. Design/methodology/approach -Detailed study and review of published works dating from 1965 to 2004. Comments and comparisons made on findings and ease of use for each. Design guide study summarised in outline form showing relationships and interdependencies of dimensions and parameters. Findings -Some previous design recommendations difficult to use owing to errors, ambiguous use of symbols and undefined terms. Terms are frequently interchanged without definition, sometimes in the same paper. Many works difficult and time-consuming to retrieve and study without access to comprehensive technical library archives. Research limitations/implications -Work indicated that more evaluation and practical study may be needed for full study. Guideline approach useful for busy designers to help lead understanding through more detailed works available. Practical implications -A very useful outline summarising the key features of hydrostatic bearings and the relationships between performance and key design parameters and dimensions. A good introduction for designers embarking on a new bearing design or needing to specify an application. Originality/value -Encapsulates a widely varied and published field with appropriate cautionary commentary on uses and abuses of current design guides.

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“…Liang [9] studied the hydrodynamics effects. Donoghue [10], Ghigliazza [11] and Elsherbiny [12] proposed ways for hydrostatic bearing system design.…”

Section: Introductionmentioning

confidence: 99%

A Simulation Study of Recessed Type Hydrostatic Journal Bearing

et al. 2016

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Abstract. In this paper, a simulation model is established to study effects of the bearing system parameters on bearing performance. The static performance (such as load capacity, stiffness and flow) about various dimensions of multi-recess type hydrostatic journal bearings with constant-resistant restrictor compensation was investigated. The parameters studied includes length/diameter ratio, number of recess, recess length ratio, recess width ratio, initial ratio between recess pressure to supply pressure, and eccentricity.

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A design method for externally pressurized journal bearings

Cited by 6 publications

References 2 publications

Influence of magnetorheological lubricant behavior on the performance of annular recessed orifice compensated non-textured/textured thrust pad bearing

Influence of magnetorheological lubricant behavior on the performance of annular recessed orifice compensated non-textured/textured thrust pad bearing

Design guidelines for hydrostatic journal bearings

A Simulation Study of Recessed Type Hydrostatic Journal Bearing

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