Căutare după Subiect "friction"

Afișează articolele 1-8 of 8

    • An Isothermal Model for Evaluating Stress and Strain in the Polymeric Block of the Block-on-Ring System 

      Georgescu, Constantin; Boazu, Doina; Ștefănescu, Ioan; Deleanu, Lorena (Universitatea "Dunărea de Jos" din Galați, 2012)
      This paper presents the results of simulating an isothermal frictional contact between a polymeric block and a steel ring. The model takes into account the elasto-plastic behavior of the polymeric materials and the ...

    • Bending of Thin Walled Pipes Using the Heat Realised by Friction 

      Tadic, Branko; Marjanovic, Nenad; Nedic, Bogdan (Universitatea ”Dunărea de Jos” din Galați, 2006)
      This paper considers appliance of heat generated by friction to relieve deformation of light metals, having as example of bending thin walled copper pipes. Based on numerous, primarily experiment analysis the conclusions ...

    • Elastic Frictional Contact under Normal and Tangential Loading 

      Spînu, Sergiu; Grădinaru, Dorin (UDJG, 2011)
      A robust algorithm for elastic contact simulation considering tangential tractions is advanced in this paper. Two similar numerical models are advanced for the normal, as well as for the tangential direction, and the ...

    • Non-Conventional Method for Friction Compensation in DC Drive Position Tracking 

      Dumitriu, Teodor; Culea, Mihai; Nichita, Mihai; Munteanu, Traian ("Dunarea de Jos" University of Galati, 2006)
      Friction, especially its nonlinear components, may degrade the tracking performance of any servo drive systems. Focused on high precision positioning of DC electrical drive the paper proposes an easy method to compensate ...

    • 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 ...

    • Structural and Tribological Aspects on Ti(C,O,N) Magnetron Reactive Sputtered Thin-Films 

      Munteanu, Daniel; Olteanu, Camelia; Ionescu, Cristian; Munteanu, Alexandru; Vaz, Filipe; Cunha, Luis (Universitatea "Dunărea de Jos" din Galați, 2007)
      Magnetron sputtering is a flexible technique and allows producing a significant amount of types of coatings. Within the frame of present work, Ti-C-O-N thin films were deposited onto high-speed steel (AISI M2), substrates ...

    • Technological Providing of Surface Layer Wear Resistance of Machine Components 

      Bezjazychnyj, Vyacheslav F.; Sutyagin, Alexander N. (UDJG, 2011)
      The article describes the problem of assuring the wear resistance of the friction surface layers based on the control of the geometrical, physical and mechanical properties to be formed after the machining process.

    • Upon Friction on a Ball Bearing - Outer Raceway Contact - I. Uniform Loading of the Balls 

      Irimescu, Luminița; Diaconescu, Emanuel; Berthier, Yves (Universitatea ”Dunărea de Jos” din Galați, 2006)
      The paper advances an analytical model to evaluate the effect of micro-slip on the friction losses at the interface of a normally loaded rolling contact. The model validation was done by comparing the theoretical results ...