Effect of cylinder liner wear on the mixed lubrication regime of TLOCRs

Profito, Francisco J.; Tomanik, Eduardo; Zachariadis, Demetrio C.

doi:10.1016/j.triboint.2015.01.004

Cited by 41 publications

(33 citation statements)

References 20 publications

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“…Their results demonstrated that the control of liner temperature can help to reduce the power loss and emissions, and the friction coefficient was not influenced by the oil supply rate and liner temperature. By using the measured liner surface topographies, Profito et al [18] evaluated the shear stress and pressure of oil control ring experimentally. Significant differences in pressures and shear stresses were observed for new and worn liner surfaces.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the effects of compression ring wear and cylinder liner deformation on the thermal mixed lubrication performance of ring-liner system

Liu

Lü

Wang

et al. 2018

Mechanics & Industry

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The lubrication performance of roughness compression ring-cylinder liner system (CRCL) with axial-asymmetric new/worn compression ring and out-of-round cylinder liner is studied in this paper. By considering the oil film thermal effect, cavitation phenomenon, and surface roughness, the energy equations, mass conservation Jacoboson-Floberg-Olsson (JFO) cavitation algorithm, generalized average Reynolds equation, and Greenwood-Tripp asperity contact model are employed to investigate the frictional behaviors of CRCL. The oil film thickness, friction forces, wear, and power loss of CRCL are investigated at various wear stages of compression ring. The effects of the magnitude of cylinder liner deformation on the frictional characteristics of CRCL are also analyzed with consideration of compression ring conformability. Numerical results show that the deformation of cylinder liner and the wear of compression ring have a significant influence on the lubrication performance. It also suggests that the oil film thermal effect should be considered in the numerical analysis to provide an accurate prediction on the frictional behaviors of CRCL.

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Section: Introductionmentioning

confidence: 99%

Numerical analysis of the effects of compression ring wear and cylinder liner deformation on the thermal mixed lubrication performance of ring-liner system

Liu

Lü

Wang

et al. 2018

Mechanics & Industry

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“…More details about the proposed model are exposed in the following sections. The results from the herein devised deterministic model have been published by the author in references [67,68,172,175,176].…”

Section: Deterministic Mixed-lubrication Modellingmentioning

confidence: 99%

“…The ring face is also admitted unchanged since the present evaluations are focused on the bore surface modifications. The results presented in this case study have been published by the author in references [175,176]. …”

Section: Performance Of the Partitioned Algorithmsmentioning

confidence: 99%

“…Finally, the third major outcome provided by this research concerns the deterministic mixed-lubrication modelling conceived for the full-scale simulation of piston-rings cylinder liner contacts in internal combustion engines [67,68,172,175,176]. In this case, a solution approach based on solving the fluid flow problem described by Reynolds equation with inter-asperity cavitation concomitantly with the Hertzian asperity contact at the roughness scale was considered.…”

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confidence: 99%

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On the development of advanced techniques for mixed-elastohydrodynamic lubrification modelling of journal and sliding bearing systems.

Profito¹

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“…Gauss-Seidel is a classical iterative method for solving linear and non-linear systems of equations [49,5,72]. First, we write − a n i− 1 2…”

Section: Gauss-seidel Iterationsmentioning

confidence: 99%

Modelação matemática de contatos lubrificados micro-texturizados

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Effect of cylinder liner wear on the mixed lubrication regime of TLOCRs

Cited by 41 publications

References 20 publications

Numerical analysis of the effects of compression ring wear and cylinder liner deformation on the thermal mixed lubrication performance of ring-liner system

Numerical analysis of the effects of compression ring wear and cylinder liner deformation on the thermal mixed lubrication performance of ring-liner system

On the development of advanced techniques for mixed-elastohydrodynamic lubrification modelling of journal and sliding bearing systems.

Modelação matemática de contatos lubrificados micro-texturizados

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