Now showing items 1-20 of 22

    • The Technical-Economic Modelling of Competitiveness for Manufacturing Systems 

      Dașchievici, Luiza; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2009)
      On world wide level, enterprises are confronted with an evermore accelerated dynamics and the unpredictable changes. This is influenced by the technical and scientific progress, dynamic requirements of the customers, ...
    • Performances Assessment from an Earthmoving Machine Through Power Monitoring 

      Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2009)
      The research presented in this paper focuses on wheel loaders, which are representative for earthmoving machines. The author presents the acquired results for measuring dynamical performances by using a new method based ...
    • The Boolean Operations with CAD Systems 

      Haraga, Georgeta; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2009)
      The AutoCAD software is a power computer-aided design (CAD) system that can offers all users of graphics, 2D and 3D objects representation. In this paper, we present the basic Boolean operations that allow adding, ...
    • Creating of the Primitive Shapes Using Autocad 

      Haraga, Georgeta; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2009)
      AutoCAD is one of the most popular graphics programs that was created for the production of technical drawings in the 2d and 3d with a high precision. In this paper we have presented the basic primitives which can be ...
    • About the Vibrations of the Mechanical Systems with Non-Linear Damping 

      Cauteș, Gheorghe (Universitatea "Dunarea de Jos" din Galați, 2009)
      This work will analyze the non-linear vibrations of the mechanical systems, actually the ones with non-linear damping. If we consider damping F( x,x ) x( k k x );k1,k2 R 2 = − 1 − 2 Î & & & then the differential ...
    • Periodic Solutions of Some Differential Equations that Show the Non-Linear Vibrations of the Mechanical Systems 

      Cauteș, Gheorghe (Universitatea "Dunarea de Jos" din Galați, 2009)
      Many phenomenons of mechanical nature possess non-linear vibrations, their mathematical forming operation leading to differential equations or to systems of differential non-linear equations. In this work it is shown ...
    • Dynamic Aspects of Percussion Equipments 

      Axinti, Gavril (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper highlights some aspects of modelling the dynamic processes taking place in the percussion equipments, known as hydraulic hammers. Theoretical and experimental aspects of the behaviour of equipments on test ...
    • Development of the Multipuiose Thermal Spraying System 

      Gorlach, Igor A.; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2009)
      Many components and structures require protection against corrosion, oxidization, excessive heat and wear. This is achieved by applying various types of coatings on the component base material, hence providing the necessary ...
    • Modelling of an Ancient Bronze Suspension head by Means of Reverse Engineering Technique 

      Efstathiou, K.; Varitis, Em.; Mansour, G. (Universitatea 'Dunărea de Jos" din Galați, 2009)
      In recent years, reverse engineering technique is used in the field of archaeology to model the geometry of archaeological findings. Modelling of ancient objects is a demanding process due to fragility. In this paper ...
    • A Study on Stevens' Power Law Applied on the Human Perception of a Running Vehicle Transmitted Vibrations 

      Picu, Ana (Universitatea "Dunărea de Jos" din Galați, 2009)
      This paper studies the way humans perceive vibrations induced by a running vehicle, starting from Stevens’ Power Law. The measurable physical magnitude was the acceleration transmitted to the hand-arm system. The ...
    • Creating of the Primitive Shapes Using Autocad 

      Haraga, Georgeta; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2009)
      AutoCAD is one of the most popular graphics programs that was created for the production of technical drawings in the 2d and 3d with a high precision. In this paper we have presented the basic primitives which can be ...
    • Some Considerations of using Virtual Reality in the Training Process Specific to Disciplines of Applied Mechanics 

      Starețu, Ionel (Universitatea "Dunărea de Jos" din Galați, 2009)
      In this paper, we first discuss issues regarding the training in mechanical design using CAD software to develop the geometric model of the components, the simulation possibilities of functioning in the case of the model ...
    • A parametric Study on Position Workspace Capability of Capaman 

      Castelli, Gianni; Ottaviano, Erika; Ceccarelli, Marco (Universitatea "Dunărea de Jos" din Galați, 2009)
      A parametric study of main workspace characteristics is presented to describe CaPaMan capability and to investigate design effects of its parameters. Several numerical evaluations are reported to cover a wide range of ...
    • Development of the Multipurpose Thermal Spraying System 

      Gorlach, Igor A. (Universitatea "Dunărea de Jos" din Galați, 2009)
      Many components and structures require protection against corrosion, oxidization, excessive heat and wear. This is achieved by applying various types of coatings on the component base material, hence providing the necessary ...
    • Comparative Study Between the Computerized Design and the Classical One 

      Goanță, Adrian Mihai (Universitatea "Dunărea de Jos" din Galați, 2009)
      Through this paper the author demonstrates the indisputable advantages of parameter assigned design which through its own features provides the possibility of automatically obtaining technical drawings including the ...
    • Econometric Modelling of the Manufactoring System 

      Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2009)
      According to this new approach, a machining system interacts with the “market” carrying out a certain “service” (machining “service”) for a specified “client” (the work piece), it establishes a full economic relationship ...
    • The Operational Space's Micro-Geometrical Analysis of the R I R II Kinematics Chain 

      Naidin, Gigi (Universitatea "Dunărea de Jos" din Galați, 2009)
      In order to systematize the three monomobile coupling kinematic chains was essential to find criteria which eliminate those coupling which are inefficient, from the mobility point of view. It is embraced, as main ...
    • Dynamic Parameter Identification of Robots Using a Neural Net 

      Jiang, Zhao-Hui (Universitatea "Dunărea de Jos" din Galați, 2009)
      This paper addresses issues of dynamic parameter identification of robot manipulators. A new identification approach with neural network based compensation of uncertain dynamics is proposed. The parameter identification process ...
    • Model and Calculation Algorithms for Gear Percussion 

      Axinti, Gavril (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper highlights some aspects of modeling the dynamic processes taking place in the percussion equipments, known as hydraulic hammers. Theoretical and experimental aspects of the behaviour of equipments on test stand ...
    • Specific Aspects of Modelling and Designing Gear Pumps 

      Goanță, Adrian Mihai (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper intends to highlight, in the context of general geometrical modelling, the specific aspects of design and modelling of a gear pump. In practice in such situations containing toothed gear it is recommended to ...