Piston ring load carrying capacity: Influence of cross-hatching parameters

Bouassida, H; Biboulet, N.; Sainsot, Philippe; Lubrecht, Antonius

doi:10.1177/1350650114522779

Cited by 24 publications

(26 citation statements)

References 13 publications

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“…The flat ring load-carrying capacity increases with the increase of groove depth and groove width ratio (Figure 8(b1) and (b2)), while the load-carrying capacity shows a reduction trend with the groove density ( Figure 8(b3)). Similar results have also been reported in Bouassida et al 11 and Biboulet et al 12 In all simulation cases with texture, with a fixed minimum oil film thickness, the load-carrying capacity of the high plateau roughness is higher, indicating that the plateau roughness provides a second source of load-carrying capacity independent of the ring profile. Table 2 shows the simulation results without texture for nonflat ring with barrel height of 4 mm under steadystate conditions.…”

Section: Steady-state Conditionssupporting

confidence: 88%

“…Moreover, this treatment has also been adopted in several previous publications 11,12,20,34 to study the cross-hatched texture on the liner. Their results showed that this assumption is effective to some extent.…”

Section: Resultsmentioning

confidence: 99%

“…The cross-hatched texture effects on the loadcarrying capacity of the top ring and the oil ring have been studied by Bouassida et al 11,12 It was demonstrated that for the top ring, load-carrying capacity is deteriorated by the cross-hatched texture. For a flat ring without texture, the cross-hatched texture provides a certain load-carrying capacity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mutual influence of plateau roughness and groove texture of honed surface on frictional performance of piston ring–liner system

Meng

Xie

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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The cylinder liner surface finish, which is commonly produced using the honing technique, is an essential factor of engine performance. The characteristics of the texture features, including the cross-hatch angle, the plateau roughness and the groove depth, significantly affect the performance of the ring pack–cylinder liner system. However, due to the influence of the honed texture features, the surface roughness of the liner is not subject to Gaussian distribution. To simulate the mixed lubrication performance of the ring–liner system with non-Gaussian roughness, the combination of a two-scale homogenization technique and a deterministic asperities contact method is adopted. In this study, a one-dimensional homogenized mixed lubrication model is established to study the influence of groove parameters on the load-carrying capacity and the frictional performance of the piston ring–liner system. The ring profile, plateau roughness, and operating conditions are taken into consideration. The main findings are that for nonflat ring, shallow and wide groove textures are beneficial for friction reduction, and there exists an optimum groove density that makes the friction minimum; for flat ring, wide and sparse grooves help improving the tribological performance, and there exists an optimum groove depth that makes the friction minimum.

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Section: Steady-state Conditionssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mutual influence of plateau roughness and groove texture of honed surface on frictional performance of piston ring–liner system

Meng

Xie

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…These large grooves may have a major contribution on the contact performance. The modeling of the groove influence is the main subject of Bouassida et al 13 Bouassida proposes a parameter to predict the load-carrying capacity as a function of operating conditions and groove geometry: groove depth, width, angle, and density. The main contribution of this paper is to describe the cylinder liner surface texture as a collection of grooves with identified geometry.…”

Section: Micro-geometrymentioning

confidence: 99%

“…Two types of data are extracted: the groove statistics (number of grooves and their geometry) and the plateau roughness. These data are useful to quantify the cross-hatched micro-geometry as descriptive parameters, but they will be used in the future as input data for lubricated contact calculations (Bouassida et al 13 ). Figure 2 shows a surface before and after identification.…”

Section: Cross-hatched Surface Identificationmentioning

confidence: 99%

Determination of fundamental parameters for the cross-hatched cylinder liner micro-geometry

Biboulet

Bouassida

Cavoret

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper is part of a project aiming at optimizing the cylinder-liner/piston-ring contact performance: oil consumption, friction and wear. The surface micro-geometry has a major influence on these characteristics. Classical cylinder-liners display cross-hatched patterns. Grooves modify contact pressure distributions and act as lubricant reservoirs and pipes redistributing oil. The load-carrying capacity is greatly influenced by the number of grooves and their geometry. An automatic groove geometry identification (depth, width, angle) is performed on cylinder-liner surface measurements. The surfaces were measured at two instants: new and after a fired engine test. The micro-geometry evolution is discussed.

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Study on the moving cross‐hatched textures under starved lubrication based on parallel calculation

Meng

Zhang

et al. 2022

Lubrication Science

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The oil storage effect of textures is beneficial for lubrication performance under starved lubrication. When the larger of the two surfaces in friction pairs is textured, the moving textures should be considered because the boundary conditions are transiently changed at each moment. This is especially for the cross-hatched textures, which are manufactured on the cylinder liner while not on the piston ring. However, it means that the calculation cost will be very expensive for engineering friction pairs because the required calculation scale is very large and the required time step is very small. So the dynamic characteristics of moving textures on engineering surfaces are normally neglected in the existing researches. In this study, a starved lubrication model of the piston ring-cylinder liner (PRCL) system is established considering the oil storage effect, local hydrodynamic effect and dynamic characteristics of the moving cross-hatched textures. To speed up the calculation, an efficient parallel algorithm is developed. The results show that there is a significant difference in minimum oil film thickness (MOFT), wear load and oil film boundaries between stationary textures and moving textures, so the moving textures should not be simplified. This is helpful to find a better design of textures for engineering friction pairs.

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Piston ring load carrying capacity: Influence of cross-hatching parameters

Cited by 24 publications

References 13 publications

Mutual influence of plateau roughness and groove texture of honed surface on frictional performance of piston ring–liner system

Mutual influence of plateau roughness and groove texture of honed surface on frictional performance of piston ring–liner system

Determination of fundamental parameters for the cross-hatched cylinder liner micro-geometry

Study on the moving cross‐hatched textures under starved lubrication based on parallel calculation

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