Numerical analysis of laser-textured piston-rings in the hydrodynamic lubrication regime / Gonzalo Brito Gadeschi in Transactions of the ASME . Journal of tribology, Vol. 134 N° 04 (Octobre 2012)  

Public ISBD [article]  inTransactions of the ASME . Journal of tribology > Vol. 134 N° 04 (Octobre 2012) . - 08 p. Titre : Numerical analysis of laser-textured piston-rings in the hydrodynamic lubrication regime Type de document : texte imprimé Auteurs : Gonzalo Brito Gadeschi, Auteur ; Katja Backhaus, Auteur ; Gunther Knoll, Auteur Année de publication : 2012 Article en page(s) : 08 p. Note générale : tribology Langues : Anglais (eng) Mots-clés : barrel-shaped laser-textured piston rings  numerical analysis Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : In this work, the performance of barrel-shaped laser-textured piston rings is numerically investigated. The surface texture, parameterized by the dimple density, dimple depth, and dimple distribution pattern, is optimized to minimize the friction coefficient for piston rings of variable curvature. We consider fully textured as well as partially textured piston rings with two different dimple distributions patterns: a central dimple distribution, and a distribution along the piston ring edges. Finally, the sensitivity of the optimal surface parameters to the piston ring curvature is assessed. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE9000134000004 [...] [article] Numerical analysis of laser-textured piston-rings in the hydrodynamic lubrication regime [texte imprimé] / Gonzalo Brito Gadeschi, Auteur ; Katja Backhaus, Auteur ; Gunther Knoll, Auteur . - 2012 . - 08 p. tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 134 N° 04 (Octobre 2012) . - 08 p. Mots-clés : barrel-shaped laser-textured piston rings  numerical analysis Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : In this work, the performance of barrel-shaped laser-textured piston rings is numerically investigated. The surface texture, parameterized by the dimple density, dimple depth, and dimple distribution pattern, is optimized to minimize the friction coefficient for piston rings of variable curvature. We consider fully textured as well as partially textured piston rings with two different dimple distributions patterns: a central dimple distribution, and a distribution along the piston ring edges. Finally, the sensitivity of the optimal surface parameters to the piston ring curvature is assessed. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE9000134000004 [...]

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