Căutare Fascicula VIII după Autor "Andrei, Gabriel"
Afișează articolele 1-7 of 7
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Analysis of Gear Quality Criteria and Performance of Curved Face width Spur Gears
Andrei, Laurentia; Andrei, Gabriel; Walton, Douglas; Dearn, Karl (Universitatea ”Dunărea de Jos” din Galați, 2008)For plastic gears, developments in composites and tooth geometry are essential for their selection in power transmissions. In order to enhance the transmissible power level of the plastic spur gears, an arc-shaped tooth ... -
Experimental Validation of a New Dispersion Method of Additive Particles into Polymer Matrix Composites
Dima, Dumitru; Murărescu, Monica; Andrei, Gabriel (Universitatea ”Dunărea de Jos” din Galați, 2009)The general expected properties of the composite materials are the result of the efficient reinforcement distribution of nanometric particles, one of the most important methods considers their dispersion. The aim of this ... -
Influence of Sliding Speed and Average Pressure in Dry Regim Upon Wear of Composite with PA and Micro Glass Spheres
Maftei, Laura; Deleanu, Lorena; Andrei, Gabriel (Universitatea ”Dunărea de Jos” din Galați, 2009)The papers presents the wear results of testing a set of composites PA + 1% black carbon + x% micro glass spheres, where x is the micro glass sphere concentration (x=0, 5, 10, 20, 30wt) using a pin-on-disc tribotester, for ... -
Multiwall Carbon Nanotubes Coated with Iron (iii) Oxide and Improved Dispersion Method for Nanostructured Polymer Composites
Murărescu, Monica; Dima, Dumitru; Andrei, Gabriel; Roman, Igor; Chiculiță, Simona (UDJG, 2010)The aim of this paper is to describe a method of coating with ceramic molecular layer, in order to obtain a MWCNTs (multiwall carbon nanotubes) functionalized surface, chemical bond energy increase and physico-chemical ... -
Optimisation of the Tooth Flank Geometry for Non-Standard Spur gear
Andrei, Laurentia; Andrei, Gabriel; Walton, Douglas (Universitatea "Dunărea de Jos" din Galaţi, 2006)In order to increase the transmissible power level of the plastic spur gears, a non-standard tooth is designed, with a variable geometry along the gear facewidth. The variation of the tooth flank geometry, generated by ... -
Statistical Assessment of Surface Quality Using 3D Profilometry Parameters
Deleanu, Lorena; Andrei, Gabriel; Ciortan, Sorin; Cantaragiu, Alina; Besnea, Aida; Trufașu, Cătălin; Podaru, Geanina (Universitatea ”Dunărea de Jos” din Galați, 2009)he paper presents a statistical analysis for quality assessment of metallic surfaces and coating in order to use the conclusions for improving coating technology. Surface investigation was done with the help of a 3D ... -
Tribological Testing Programs for Uhmwpe Matrix Composites
Chiculiță, Simona; Rîpă, Minodora; Andrei, Gabriel (Universitatea ”Dunărea de Jos” din Galați, 2009)This paper aims to review the knowledge on materials and tribology of the ultra high molecular weight polyethylene (UHMWPE) composites. The various mechanisms proposed for the wear behaviour of UHMWPE are closely associated ...