Căutare după Subiect "friction coefficient"

Afișează articolele 1-7 of 7

    • Analysis of the PM Bearing – Spindle Contact Using Finite Element Method 

      Teișanu, Cristina; Dumitru, Nicolae; Gheorghe, Ștefan (UDJG, 2011)
      Using PM (Powder Metallurgy) technologies, new antifriction materials based on iron-copper powders with different addition elements were developed. The elemental powder mixtures were compacted at different pressures and ...

    • Neural Networks Based Study of Friction Coefficient Variation in Sliding Bearings 

      Senatore, Adolfo; Ruggiero, Alessandro; Palade, Vasile; Ciortan, Sorin (Universitatea "Dunărea de Jos" din Galaţi, 2007)
      The paper presents the possibility of using the neural networks approach for the analysis of friction coefficient evolution in case of sliding bearings. Several non-metallic bearing materials are investigated, both with ...

    • Power Losses Estimation in Precessional Gear 

      Bostan, Ion; Dulgheru, Valeriu; Bodnariuc, Ion (UDJG, 2010)
      Having established the estimation relations of power losses in basic kinematical joints, it becomes relatively simple to establish the estimation relation of kinematical precessional transmission efficiency which, on the ...

    • A Simple Device for Modelling Bioarticular Joint Friction 

      Bejinariu, Brîndusa; Diaconescu, Emanuel (UDJG, 2011)
      In this paper a simple device for modelling bioarticular friction is presented. The experimental device serves to simulate the movement as it would take place in a knee joint. Key components of the experimental device are ...

    • The Influence of Polarization Tension of the Grading Over thin Layer Properties of TiN Deposed Through PDV Method 

      Gaiță, Mihai; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2006)
      The deposits of tough thin layers on pieces and tools through PDV method knew a permanent and constant spreading owing to the great applicability of the resulting coatings which make that the thin layer deposit from the ...

    • The Influence of the Applied Load on the Friction Coefficient of the Sintered Iron-Base Bearings 

      Teișanu, Cristina; Gheorghe, Ștefan; Tudor, Andrei; Ciupitu, Ion (Universitatea ”Dunărea de Jos” din Galați, 2008)
      In the recent years the iron base sintered bearings production was considerable increased at the expense of the copper based ones, due to the low cost and availability of the iron powders as well as the higher strength. ...

    • Vegetal Oils as Lubricating Materials 

      Calomir, Camelia; Ștefănescu, Ioan; Chiriță, George (Universitatea ”Dunărea de Jos” din Galați, 2008)
      The success of vegetal oils is related to their biodegradability and reduced toxicity but a wide use is limited by their insufficient stability in time. Biodegradable oils have ecological advantages, being comparable or ...