Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Hamed Ghaednia"'
Publikováno v:
Lubricants, Vol 11, Iss 5, p 208 (2023)
This work develops a numerical methodology for predicting the performance of an automotive piston ring system by considering contact and lubrication mechanics. The rough surface contact mechanics and lubrication occurs on a scale much smaller than th
Externí odkaz:
https://doaj.org/article/353d2344d38c4199baa99e1c3feb6bb0
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 237:210-221
This work employees the modification of the Reynolds equation for computational efficiency by analyzing rough surfaces in the hydrodynamic flow regime through the use of flow factors. This analysis is aimed towards modeling the surface interactions a
Autor:
Xiaoxiao Han, Jiyu Cai, Hamed Ghaednia, Arup Gangopadhyay, Josue A. Goss, Xiangbo Meng, Min Zou, Shelby R. Maddox
Publikováno v:
Journal of Tribology. 144
Publikováno v:
Materials
Volume 14
Issue 14
Materials, Vol 14, Iss 3864, p 3864 (2021)
Volume 14
Issue 14
Materials, Vol 14, Iss 3864, p 3864 (2021)
The solution to an elastic-plastic rough surface contact problem can be applied to phenomena such as friction and contact resistance. Many different types of models have therefore been developed to solve rough surface contact. A deterministic approac
Autor:
Xiaoxiao Han, Shelby R. Maddox, Min Zou, Arup Gangopadhyay, Jiyu Cai, Josue A. Goss, Hamed Ghaednia, Xiangbo Meng
Publikováno v:
Journal of Tribology. 143
The piston ring and liner interface is a major source of friction loss in automotive combustion engines. This loss can be mitigated by learning from surfaces from nature that manipulate friction. In this study, novel fabrication and testing methods w
Publikováno v:
Wear. :203990
This study intends to investigate the feasibility of using laser cladding as a potential process to repair hot working tools by a hardfacing process. A Stellite 21 alloy coating was printed on a 350 maraging steel via laser cladding and the coating m
Autor:
Arash Khajeh, Istvan Zoltan Jenei, Ashlie Martini, Hamed Ghaednia, Fabrice Dassenoy, Arup Gangopadhyay, Thierry Epicier, Dairene Uy
Publikováno v:
Tribology International
Tribology International, 2019, 131, pp.446-453. ⟨10.1016/j.triboint.2018.11.001⟩
Tribology International, Elsevier, 2019, 131, pp.446-453. ⟨10.1016/j.triboint.2018.11.001⟩
Tribology International, 2019, 131, pp.446-453. ⟨10.1016/j.triboint.2018.11.001⟩
Tribology International, Elsevier, 2019, 131, pp.446-453. ⟨10.1016/j.triboint.2018.11.001⟩
International audience; Gasoline soot nanoparticles (SNPs) were studied by performing in situ compression tests on individual nanoparticles inside a transmission electron microscope. After consecutive compressions, the SNPs exhibited an elasto-plasti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ee03808c6121d70f475810c714f544d
https://hal.science/hal-01991814
https://hal.science/hal-01991814
Publikováno v:
Tribology Transactions. 59:585-592
This article introduces a new type of nanoparticle additive for tribological purposes. A nanolubricant was synthesized and studied that consists of metallic silver nanoparticles suspended in polyethylene glycol (PEG). Silver nanoparticles were prepar
Autor:
Ashlie Martini, Dairene Uy, Thierry Epicier, Arash Khajeh, Arup Gangopadhyay, Fabrice Dassenoy, Istvan Zoltan Jenei, Hamed Ghaednia
Publikováno v:
Nanotechnology
Nanotechnology, Institute of Physics, 2018, 29 (8), 〈10.1088/1361-6528/aaa2aa〉
Nanotechnology, Institute of Physics, 2018, 29 (8), pp.085703. ⟨10.1088/1361-6528/aaa2aa⟩
Nanotechnology, 2018, 29 (8), pp.085703. ⟨10.1088/1361-6528/aaa2aa⟩
Nanotechnology, Institute of Physics, 2018, 29 (8), 〈10.1088/1361-6528/aaa2aa〉
Nanotechnology, Institute of Physics, 2018, 29 (8), pp.085703. ⟨10.1088/1361-6528/aaa2aa⟩
Nanotechnology, 2018, 29 (8), pp.085703. ⟨10.1088/1361-6528/aaa2aa⟩
International audience; Incomplete fuel burning inside an internal combustion engine results in the creation of soot in the form of nanoparticles. Some of these soot nanoparticles (SNP) become adsorbed into the lubricating oil film present on the cyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfca06996fc949d4c39aec06ac47be07
https://hal.archives-ouvertes.fr/hal-01814020
https://hal.archives-ouvertes.fr/hal-01814020
Publikováno v:
IEEE Transactions on Components, Packaging and Manufacturing Technology. 2:1158-1171
All surfaces are rough to some extent and therefore only a small portion of surfaces actually comes into contact when they are brought together. Therefore heat flow from one object to another is retarded by this incomplete contact, resulting in therm