Modelling and analysis of slip conditions in hydrodynamic lubrication of a piston skirt-cylinder contact
| Autor: | Hamid Zaidi, Mustapha Mechalikh, Ibrahim Zidane, Abdessoufi Benhamou, Miloud Tahar Abbes |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Mechanical Engineering
Fluid bearing 02 engineering and technology Slip (materials science) Mechanics 021001 nanoscience & nanotechnology Reynolds equation Surfaces Coatings and Films law.invention Cylinder (engine) Piston 020303 mechanical engineering & transports General Energy 0203 mechanical engineering law Surface roughness Boundary value problem Wetting 0210 nano-technology Geology |
| Zdroj: | Industrial Lubrication and Tribology. 72:1181-1187 |
| ISSN: | 0036-8792 |
| DOI: | 10.1108/ilt-11-2019-0483 |
| Popis: | 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/ |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|