Căutare 1995-2015 după Titlu

Afișează articolele 155-174 of 326

    • Method Flowchart of Make to Order Manufacturing Systems 

      Dașchievici, Luiza; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2012)
      Decisions on acceptance of order and production planning in the manufacturing system are often considered separately. Sales Department is responsible for accepting orders, while the production department deals with ...

    • A Method for Determining the Pressure Loss Coefficients 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2012)
      For braking elements of mechanisms operated by hydraulic cylinders is used hydraulic resistance which controls the working fluid. Determination of these systems is difficult, especially in the design phase. This ...

    • A Method for Establishing by Controlled Aproximation of the Limitted Forces Developed by Alignmed of the Hydraulic Cylinder 

      Hauk, Niculai; Goanță, Adrian Mihai; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2002)
      Determination of the limited forces – in case of the mechanisms actioned by the alignmed of the hydraulic cylinders is a very difficult problem to be realized very exactly. This paper presents a numerical method with a ...

    • A Method of Assessing the Stress in some Components of Hydraulic Cylinders 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2008)
      This paper proposes a method for evaluating the stress of the unit body of the hydraulic cylinder and the rod which was at work and the Hydraulic Brake at the end of the race. The paper analyzes the situation in which ...

    • A Method to Increase the Accuracy Of the Mathematical Model Used to Hydraulically Actuated Mechanical Systems 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2013-10-01)
      In order to achieve mathematical models describing hydraulically driven mechanical systems are taken into account both consumer behavior and characteristics of power sources and hydraulic circuits. The variable resistance ...

    • A Method Used to Determin the Power Necessary for Hydraulic Excavators 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper presents a method of verification in the design phase, the mechanical power necessary involvement hydraulic pumps for excavators with bucket reverse.Because, in the design phase the digging forces are not ...

    • Methods for Generating Mesh Surfaces Using CAD Systems 

      Haraga, Georgeta; Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2011)
      One of the most popular graphic software in CAD systems is AutoCAD that is used frequently by a very great number of users thanks to its numerous advantages. In this paper we present several methods to create mesh surfaces ...

    • Modal Calculus of the Reinforced Concrete Bridges Modeled as a Rigid Solid Beared on Viscous Elastic Neoprene Supports 

      Drăgan, Nicușor (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper proposes an approach of a six degree dynamic model of a rigidsolid with some types of symmetries. These symmetries lead to simplified mathematical models, which are more easily to solve. If the rigid-solid is ...

    • Modal Damping Ratio Calculation for Finited of Mechanical Systems with Viscous Elastic Bearings Using Virtual Instrumentation 

      Drăgan, Nicușor (Universitatea "Dunărea de Jos" din Galați, 2011)
      This paper proposes an approach of a finite DOF dynamic model for the rigid-solid with multiple neoprene apparatus bearings modeled as viscous elastic dampers. After a short presentation of the physical model of the solid ...

    • 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 ...

    • A Model of the Mechanical Waves in Curved Bars 

      Oproescu, Gheorghe (Universitatea "Dunărea de Jos" din Galați, 2007)
      The different classical models of the mechanical waves in bars cover every a single type of the wave, respectively only longitudinal, transversal, inflexion or torsion wave and only in a rectilinear bar, every with his ...

    • Modeling the Dynamic Behavior of the Supercharger Units of Supercharged Diesel Engines 

      Burciu, Mugurel (Universitatea "Dunărea de Jos" din Galați, 2013)
      The paper preseflts the sintulation of the dynamic behavior of the supe.rcharger group with free rotatiott, using diJfere,tial equatiotts. The model is based on working knowledge of static characteiistics of the supercharge ...

    • 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 ...

    • Modern CAD Tools Used in Mechanical Design 

      Goanță, Adrian Mihai (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper aims to present synthetically as many of those tools that are part of Mechanical Desktop 2008 software with notable performance in the CAD environment and to justify this performance by the presentation of the ...

    • Monitoring and Control of Manufacturing Process 

      Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2014)
      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 ...

    • Mud Pumping Equipment Attached to Excavator Arm 

      Eftimie, Dorin (Universitatea "Dunărea de Jos" din Galați, 2012)
      This study presents a mud pumping equipment that can be attached to the excavator arm. This equipment can solve ecological issues in narrow spaces, in areas where access is limited as well as during floods. Tthe technological ...

    • Muffler Performances Modeling with Boundary Element - Method and Experimental Study 

      Vasile, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper investigates the acoustic performance of a reactive silencer using Boundary Element Method analysis and experimental techniques. This analysis addresses a research topic of major interest today on how to reduce ...

    • NDT of Cementitious Materials 

      Picu, Mihaela; Tudose, Cosma (Universitatea "Dunărea de Jos" din Galați, 2006)
      The US method presented an automatically extract certain parameters of US waves, parameters that have been continuously recorded during the mortar hardening process. Until now, the standard methodes measured only ...

    • A New Calculating Method of the Reaction Support Groups Used in Rotary Kiln 

      Ene, Gheorghe; Marin, Cornel (Universitatea "Dunărea de Jos" din Galați, 2008)
      This paper presents a new analytical method for calculating the reaction of support rotary kiln, regarded as an indeterminate static problem. It is the Y -Method and equation of three displacements (using Y loading ...

    • Noise and Vibration Protective Solution Analysis for Technological Equipments 

      Anghelache, Diana (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper presents a cumulative and comparative analysis, concerning the noise and vibration pollution and protective approaches, monutoring the construction technological equipments. By means of the computer simulations, ...