3D thermohydrodynamic analysis of a textured slider

Cupillard, Samuel; Glavatskih, Sergei; Cervantes, Michel

doi:10.1016/j.triboint.2009.05.021

Cited by 32 publications

(33 citation statements)

References 20 publications

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“…finding the maximum (minimum) load capacity (friction coefficient) where H r , A r and α are the parameters of the textured surface, denoting height ratio, area density and textured portion of slider, respectively. The parameters of optimization were chosen in line with previous studies [12,14,17,[28][29][30]. In particular, Brizmer et al [12] studied effects of the texture density and dimple depth on the hydrodynamic performance of a parallel thrust bearing.…”

Section: Rectangular Dimplesmentioning

confidence: 99%

“…In particular, Brizmer et al [12] studied effects of the texture density and dimple depth on the hydrodynamic performance of a parallel thrust bearing. The effects of the texture density was also investigated in [17] for a pad slider. Other studies show that the size of textured fraction of the component is important, because only partial texturing generates the hydrodynamic lift as opposed to the full texturing in journal bearings, parallel sliders and mechanical seals [14,[28][29][30]].…”

Section: Rectangular Dimplesmentioning

confidence: 99%

“…A parametric theoretical and experimental study of optimal elliptical dimples was also performed by Ma et al [15]. 2D fluid flow in a journal bearing was also studied by Cupillard et al using the Navier-Stokes equations, where load capacity and friction were calculated for varying dimple depths and eccentricity ratios [16], including a thermohydrodynamic analysis of 3D textured sliders [17]. However, the approach based on numerical exhaustive search is time-consuming and costly in terms of computing power.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Textured Surface in 2D Parallel Bearings Governed by the Reynolds Equation Including Cavitation and Temperature

2013

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One-dimensional textured parallel bearings have been successfully optimized for the maximum load capacity or the minimum friction coefficient using a unified computational approach. However, there is no efficient approach allowing for the optimization of two-dimensional (2D) bearings. The work conducted is, in most cases, by "trial and error", i.e. changes are introduced and their effects studied, either experimentally or through numerical parametric studies. This is time consuming and costly. In this paper, a uniform approach to the optimization of surface textures in 2D bearings, based on nonlinear programming routines, is proposed. The approach aims at finding the optimal textured surfaces that support the maximum load and/or minimize friction coefficient. Examples of parallel hydrodynamic bearings with surfaces textured by rectangular or elliptical dimples and governed by Reynolds equations, considering mass-conserving cavitation and decrease in viscosity due to temperature change are optimized. Results of the optimization are comparable to those obtained using an exhaustive search and found in literature.

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Section: Rectangular Dimplesmentioning

confidence: 99%

Section: Rectangular Dimplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimization of Textured Surface in 2D Parallel Bearings Governed by the Reynolds Equation Including Cavitation and Temperature

2013

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“…Many studies have been reported with the textured sliders/bearings having parallel mating surfaces, but dearth of investigations have been noticed on the performance behaviours of textured fixed pad thrust bearings having considerable inclination at the interface. It has been revealed that if particular type of groove is placed on the whole surface of slider transverse to the flow direction, it produces the beneficial effects . However, it has also been noticed that there is no exploration for the performance behaviours of pad thrust bearings considering the textures comprising of the different cross‐sectional shapes of grooves.…”

Section: Introductionmentioning

confidence: 99%

Frictional and load-carrying behaviours of micro-textured sector shape pad thrust bearing incorporating the cavitation and thermal effects

Aggarwal

Pandey

2016

Lubr. Sci.

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Frictional and load-carrying behaviours of micro-textured sector shape pad thrust bearing have been explored and reported herein. The textured pad surfaces have been generated employing different crosssectional shapes (circular, square, trapezoidal and triangular) of grooves. Based on the thermohydrodynamic lubrication analysis, it is observed that when the adopted texture pattern is placed on the pad towards the entry region, it produces substantial reduction in friction coefficient. The texture involving the square cross-sectional shape of grooves has yielded substantial reductions in the friction coefficient in comparison with the conventional plain pad.

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“…Dobrica and Fillon [1] highlighted that the validity of Reynolds equation for texturing slider contacts depends on the Reynolds number and the texture's aspect ratio. Later, considering thermohydrodynamic effect, Cupillard et al [2] explored the performance of a partially textured slider bearing with a temperature-dependent lubricant using a commercial CFD software. Meng et al [3] investigated the tribological performance for the bearing with the compound dimple using fluid-structure-interaction FSI approach.…”

Section: Introductionmentioning

confidence: 99%

Influence of boundary slip layout on the hydrodynamic performance of partially textured journal bearing by CFD method

et al. 2018

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Modification of the lubricated surface by combining the boundary slip and the texturing has proven to enhance the hydrodynamic performance of bearing. The present work explores the combined effect of boundary slip and texturing varying slip layout on the performance of journal bearing using computational fluid dynamic (CFD) approach. The effect of eccentricity ratio is also of particular interest. The results show that when the boundary slip is located on all edges of textured surface, more enhanced load support by 4% is obtained in comparison with classical (no-slip) textured one. However, in general the results also indicate that introducing the boundary slip with different layouts on partially textured surface does not much affect the hydrodynamic pressure as well as the load support; therefore, the slip-textured bearing shows similar and closer trend to the no-slip textured one. In addition, it is also found that the effect of eccentricity ratio is more influential than the boundary slip in terms of load support.

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3D thermohydrodynamic analysis of a textured slider

Cited by 32 publications

References 20 publications

Optimization of Textured Surface in 2D Parallel Bearings Governed by the Reynolds Equation Including Cavitation and Temperature

Optimization of Textured Surface in 2D Parallel Bearings Governed by the Reynolds Equation Including Cavitation and Temperature

Frictional and load-carrying behaviours of micro-textured sector shape pad thrust bearing incorporating the cavitation and thermal effects

Influence of boundary slip layout on the hydrodynamic performance of partially textured journal bearing by CFD method

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