Performance analysis of two-dimensional section of partially textured piston ring with cavitation boundary conditions
01 Jun 2021-Vol. 9, Iss: 2, pp 025025
About: The article was published on 2021-06-01. It has received 8 citations till now. The article focuses on the topics: Piston ring & Boundary value problem.
Citations
More filters
••
13 Jul 2021TL;DR: In this article, the sector-shaped tilting pad thrust bearings employing the new micro-structural geometries on pad are employed to reduce power loss, minimum film thickness, and maximum oil temperature.
Abstract: Performance parameters such as power loss, minimum film thickness, and maximum oil temperature of the sector-shaped tilting pad thrust bearings employing the new micro-structural geometries on pad ...
5 citations
••
TL;DR: In this paper , the authors investigated the synergistic effect between surface texturing via Maskless Electrochemical Texturing (MECT) and ZDDP additive on a gray cast iron cylinder liner.
Abstract: Surface texturing can improve lubrication and entrap wear debris but increases the effective roughness of the surfaces, which can induce higher contact pressures. On the one hand, this can be detrimental, but on the other hand, the increase in contact pressure could be used to activate the formation of a ZDDP tribofilm from fully-formulated lubricants. This work investigates the synergistic effect between surface texturing via Maskless Electrochemical Texturing (MECT) and ZDDP additive. The surface texture consisted of an array of annular pockets manufactured on a gray cast iron cylinder liner. These textured surfaces were evaluated by scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDX). The results indicated that surface texturing via MECT changes the chemical composition of the surfaces, by inducing a preferential dissolution of the metal matrix. Consequently, it exposed the carbon present in the material. The tribological performance was evaluated by a ring-on-cylinder-liner tribometer in reciprocating sliding under boundary lubrication conditions using both a base oil and a commercial formulated oil containing ZDDP additive. For comparison, a commercially honed liner was also tested. After the tribological tests, the surfaces were evaluated by white light interferometry and SEM/EDX. Although the textured surfaces showed higher friction, they induced more ZDDP-tribofilm formation than conventional cylinder liner finish.
5 citations
••
01 Sep 2021
2 citations
••
TL;DR: The Surface Topography: Metrology and Properties (STMP) journal as discussed by the authors is the most cited journal for surface design, measurement, instrumentation, manufacturing, functionality and modeling.
Abstract: Abstract Surface Topography: Metrology and Properties (STMP) is reaching its 10th Birthday soon and this paper looks at the inception of the journal and the goals set in the mid 2010s and will look back at what it has published in the most highly cited areas and detail future initiatives to serve the readership. STMP publishes the latest physics, chemistry, life science, materials science and engineering research on applied, functional surfaces. It has published ground-breaking work on surface design, measurement, instrumentation, manufacturing, functionality and modelling as well as cross-disciplinary work on surface and interface engineering across an array of different applications. It is the home of papers from the biannual international conference on Metrology and Properties of Surfaces series. The journal was awarded it’s first impact factor in 2017 and has a current value of 2.038 (2020) and is now working to improve on this. A new initiative for 2021 is to offer a collection of papers from emerging leaders within the scope of the journal.
1 citations
References
More filters
••
700 citations
••
TL;DR: The friction and wear behavior of boundary lubricated sliding surfaces is influenced by the surface texture as mentioned in this paper, by introducing controlled depressions and undulations in an otherwise flat surface, the...
500 citations
••
TL;DR: In this paper, an experimental study is presented to evaluate the effectiveness of micro-surface structure, produced by laser texturing, to improve tribological properties of reciprocating automotive components, including piston rings and cylinder linings.
Abstract: An experimental study is presented to evaluate the effectiveness of micro-surface structure, produced by laser texturing, to improve tribological properties of reciprocating automotive components. The test rig and test specimens are described and some test results are presented. Good correlation is found with theoretical prediction of friction reduction on a simple, yet representative, test specimen. Potential benefit of the laser surface texturing under conditions of lubricant starvation is also presented. Finally, friction reduction with actual production piston rings and cylinder liner segments is demonstrated. Presented at the 57th Annual Meeting in Houston, Texas May 19–23, 2002
465 citations
••
438 citations
••
TL;DR: In this paper, the effect of partially laser surface textured piston rings on the fuel consumption and exhaust gas composition of a compression-ignition IC engine was evaluated with a Ford Transit naturally aspirated 2500 cm3 engine at a wide range of engine speeds under near-half load conditions.
379 citations