Modeling and Analysis of the Slip Conditions in Hydrodynamic Lubrication

Zidane, Ibrahim; Zahloul, Hamou; Hajjam, Mohamed; Abbadeni, Mohammed

doi:10.1007/s13369-014-1214-4

Cited by 4 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The worst case considered in this analysis is that the piston is in the top dead centre at the explosion time, in which the pressure is maximum for crankshaft angle θ̄ = 370°. The lubricated contact shape and operating conditions are those used by Mazouzi et al (2016), Mechalikh et al (2019) and Zidane et al (2014) as given:…”

Section: Resultsmentioning

confidence: 99%

“…The slip may take place at a constant slip length and in the case where the critical surface shear stress is zero or if it is less than wall shear stress ( τ p > τ c ). Boundary conditions are given by the following equations (Zidane et al , 2014): …”

Section: Analytical Modellingmentioning

confidence: 99%

“…From the boundary conditions in equation (3), the modified Reynolds equation is demonstrated by Zidane et al (2014) for all lubricated contacts. This equation is given in Cartesian coordinates as follows: …”

Section: Analytical Modellingmentioning

confidence: 99%

“…Authors indicate that an inappropriate choosing of the texture/slip zone geometry can lead to a substantial deterioration of the bearing performance. Zidane et al (2014) established a modified Reynolds equation for all hydrodynamic lubricated contacts by modelling boundary conditions of slip, no-slip and back-flow at one contact wall. Thereafter, the modified Reynolds equation is applied to the case of an inclined pad bearing.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, we propose a semi-numerical analysis to investigate slip phenomenon effects on the hydrodynamic behaviour of piston skirt-cylinder contact. For this proposal, a modified Reynolds equation is deducted, which is demonstrated by Zidane et al (2014) for all hydrodynamic lubricated contacts. The slip at the interface between oil-film and cylinder is considered in the equation.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Modelling and analysis of slip conditions in hydrodynamic lubrication of a piston skirt-cylinder contact

Mechalikh

Zidane

Benhamou

et al. 2020

ILT

Self Cite

View full text Add to dashboard Cite

Purpose After more than a century of agreement with the postulate of non-slip condition (adhesion to the wall), the study of fluid-solid boundary conditions has shown renewed interest over the past two decades. Although numerous studies have not yet been arrived to a complete description of slip phenomena, however, it appears that the influence of wetting and/or surface roughness results in a weak interaction between fluid and solid; thus, the presence of the slip phenomenon is observed at the fluid-solid interface. The purpose of this paper is to highlight the presence of the slip phenomenon at the lubricated piston skirt-cylinder contact. Design/methodology/approach For this proposal, a modified Reynolds equation and operating characteristics are determined by taking into account the slip conditions at the interface between oil-film and entire cylinder surface. Findings The findings indicate that the operating characteristics are strongly influenced when the slip conditions are taken into account at the interface between oil-film and cylinder surface. The friction force and dissipated power might be reduced to improve diesel engine performances. Originality/value Various research studies have been conducted to model the slip phenomenon in different lubricated contacts over the past two decades. However, there are no studies available concerning the piston-cylinder system. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2019-0483/

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Analytical Modellingmentioning

confidence: 99%

Section: Analytical Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Modelling and analysis of slip conditions in hydrodynamic lubrication of a piston skirt-cylinder contact

Mechalikh

Zidane

Benhamou

et al. 2020

ILT

Self Cite

View full text Add to dashboard Cite

show abstract

Crack failure in hydrodynamically lubricated bearings: A case study hydraulic turbine

Taşgin

Kahraman

2021

Engineering Failure Analysis

View full text Add to dashboard Cite

Numerical analysis of the effect of elastic deformation on the static characteristics of a circular journal bearing lubricated with a ferrofluid

Azzala,

Chetti,

Zidane

2024

Proceedings of the Institution of Mechanical Engineers, Part J:

View full text Add to dashboard Cite

The present study investigates the effect of elastic deformation on the static characteristics of a circular journal bearing operating with a ferrofluids. Applying momentum and continuity equation, for ferrofluid under the applied magnetic field, the modified Reynolds equation is derived using the Neuinger-Rosensweig model. A magnetic field is created by displaced finite wire. The elastic thin liner model is used for determining the displacement field at the fluid film bearing liner interface. To obtain the pressure distribution, the modified Reynolds equation is solved using finite difference technique with appropriate iterative technique incorporating Reynolds boundary conditions. The static performance characteristics for journal bearing in terms of the load carrying capacity, the attitude angle, friction coefficient and the side leakage are studied for various values of the magnetic force coefficient and the elastic deformation coefficient. According to the results obtained, it is found that the increasing of magnetic force coefficient produces an increase of the film pressure, load carrying capacity, attitude angle and side leakage, while it decreases the friction coefficient increases. In addition, it is found that the effect of the elastic deformation on the static characteristics for the journal bearing is depending to the values of the eccentricity ratio and the magnetic force coefficient. The presence of magnetic fields significantly enhances the performance of a rigid and deformable journal bearing.

show abstract

Modeling and Analysis of the Slip Conditions in Hydrodynamic Lubrication

Cited by 4 publications

References 28 publications

Modelling and analysis of slip conditions in hydrodynamic lubrication of a piston skirt-cylinder contact

Modelling and analysis of slip conditions in hydrodynamic lubrication of a piston skirt-cylinder contact

Crack failure in hydrodynamically lubricated bearings: A case study hydraulic turbine

Numerical analysis of the effect of elastic deformation on the static characteristics of a circular journal bearing lubricated with a ferrofluid

Contact Info

Product

Resources

About