Căutare 2006 fascicula8 după Titlu

Afișează articolele 11-24 of 24

    • 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 ...

    • Prediction of Wear of Acetabulum Inserts Due to Multiple Human Routine Activities 

      Onișoru, Justin; Capitanu, Lucian; Iarovici, Aron (Universitatea ”Dunărea de Jos” din Galați, 2006)
      It is difficult to predict the quantitative and qualitative aspects of the wear of the components that allow relative motion due to several factors. First, the prosthetic parts in contact experience a wide spectrum of ...

    • A Preliminary Study on the Dynamics of Triboemission, Work Function and Surface Charging of Ceramics 

      Molina, Gustavo.J (Universitatea ”Dunărea de Jos” din Galați, 2006)
      This paper discusses the tribological dynamics of electron triboemission and after-contact emission during scratching of ceramics. The origin of such triboemission is still unclear, but the author and colleagues consistently ...

    • Research on Surface Roughness by Laser Cut 

      Radovanovic, Miroslav; Dašić, Predrag (Universitatea ”Dunărea de Jos” din Galați, 2006)
      Laser cutting is one of the most industrial applications. Laser cutting with oxygen is used primarily for cutting of mild and low-alloyed steels. Cut surface quality is a very important characteristic of laser cutting that ...

    • Researches of Distribution of Loading on Coils of Running Pair of the Latch 

      Dzhanakhmedov, Akhad Kh. (Universitatea ”Dunărea de Jos” din Galați, 2006)
      This paper gives the calculation procedure of pressure distribution on coils of running pair of latch at various loading schemes. Recommendations are provided for the choice of loading schemes of running pair, which ensure ...

    • Singular Points in an Elastic Half-Plane Containing a Circular Hole, Loaded by a Normal Point Force on the Straight Boundary 

      Alaci, Stelian; Diaconescu, Emanuel; Frunză, Gheorghe (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      These authors published theoretical results upon the stress state induced in an elastic half-plane containing a circular hole by a point force applied on its boundary. The solutions were found in bipolar co-ordinates and ...

    • Some Special Features of the Elastic-Plastic Deformation of the Composite Electrolytic Platings 

      Javgureanu, Vasile; Gordelenco, Pavel; Elita, Natalia (Universitatea ”Dunărea de Jos” din Galați, 2006)
      One brings the elastic particularises and figures of the deformation of composition of the iron-nickel and iron hedging’s to the micropression. This information makes it possible to explain the mechanism elastic and plastic ...

    • Specific Aspects of the Contact Wheel-Rail and the “IN SITU” Rehabilitation of Tram Rails 

      Argeşanu, Veronica; Popescu, Mihaela (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      The rails are an important and critical part of a railway system and are exposed, during service, to high stresses of different types, frequency and orientation and also to different environmental. The tram rails are in ...

    • The External Cylindrical Surface Rolling by Method of Cold Deformation 

      Ivanovic, Petar; Djordjevic, Ljubodrag; Dašić, Predrag (Universitatea ”Dunărea de Jos” din Galați, 2006)
      This report, by the shown methodology, tries to contribute to the effective solution of tasks in the field of studying and designing the processes and states. It also points out a possible way of achieving high techno-economical ...

    • Tribological Behaviour of CO-CR-MO and Uhmwpe the Components of Intervertebral Disc Prosthesis 

      Iliuță-Crețan, Monica; Munteanu, Florin; Gafițanu, Mihai (Universitatea ”Dunărea de Jos” din Galați, 2006)
      The Intervertebral Disc Prostheses consist of a modular system and his function is based on low intervertebral friction. As a result of friction forces acting to the spine structures, the intervetebral disc prostheses can ...

    • Ultrasound Action on Strength Properties of Polycrystalline Metals 

      Moraru, Luminița (Universitatea ”Dunărea de Jos” din Galați, 2006)
      The mechanical properties of pure aluminum were investigated by tensile test on the sample with average grain size between 60 and 1000 µ m. The stress strain functions given by the models are fitted to the measured points. ...

    • 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 ...

    • Upon Radial Fretting of Dissimilar Materials 

      Ciornei, Florina; Irimescu, Luminița; Diaconescu, Emanuel (Universitatea ”Dunărea de Jos” din Galați, 2006)
      The paper presents a state of the art concerning radial fretting for dissimilar bodies and fretting damage. Four simple fretting models are defined in the literature: tangential, radial, rotational and torsional. Only the ...

    • Wear and Irreversible Entropy Generation in Dry Sliding 

      Abdel-Aal, Hisham A. (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      This paper examines the relationship between wear and the generation of entropy within the mechanically affected zone, MAZ, of a sliding material. It is postulated that wear is related to irreversible entropy generation ...