Afișează articolele 122-141 of 326

    • Filter Signals a First Step in Interpreting Experimental Results 

      Leopa, Adrian (Universitatea "Dunăread de Jos" din Galați, 2010)
      After recording and storage of experimental data, a first step in their processing is filtering, ie, removal of parasitic components (noise) accompanying the signal due from other machines or equipment in service or ...
    • Flexible Objects Vibration Control and Handling Using DD Robot Arms 

      Jiang, Zhao-Hui; Kubo, Masaya (Universitatea "Dunărea de Jos' din Galați, 2006)
      This paper addresses issue of flexible object manipulation by using robot arms. The main objective is to establish a suitable control system of the robot for performing flexible object manipulation tasks. A force sensor ...
    • Friction Coupling and Specific Phenomena 

      Simionescu, Cristian Silviu (Universitatea "Dunarea de Jos" din Galați, 2003)
      The present work object is to make the transitory conditions evolution evident,in coupling, by considering the friction moment which depends on angular speed. The friction moment is considered to be dependent on the relative ...
    • Functional Aspects for Antiseismic double Sliding Isolation Systems 

      Șcheaua, Fănel (Universitatea "Dunărea de Jos" din Galați, 2015)
      In order to counteract the soil sudden movements as a result of seismic actions, a disconnection between the primary components of a specific structure was needed, so that the efforts can not be transmitted on ...
    • General Working Principles for Agricultural Tractor with Ploughing Equipment 

      Șcheaua, Fănel (Universitatea"Dunărea de Jos" din Galați, 2014)
      Agricultural machines are considered part of special mechanical equipments category intended to perform mechanized works in farmlands, in order to obtain optimal harvests. The continuous development of these equipments ...
    • Geometrical Assumptions Regarding Viscous Fluid Dampers 

      Nedelcut, Florin; Scheaua, Fănel (Universitatea "Dunărea de Jos" din Galați, 2015)
      The specific innovative device presented in this paperwork is a hydraulic system operating with viscous fluid that provides damping for shocks and vibrations. A basic viscous fluid device is constructed on the principle ...
    • Geometrical Shapes with CAD Systems 

      Haraga, Georgeta; Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2008)
      The Solid Edge software is a power computer-aided design (CAD) system of graphics for mechanical assembly, part modeling, and drawing production. In this paper, both the ability in using Solid Edge program and the ...
    • Geometry Stage 3D Modeling of a Heat Station Pump 

      Goanță, Adrian Mihai; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper presents the stages of the 3D modelling of a circulation pump in a domestic low-power heat station. The possibilities of modifying the geometry by changing the numerical size of the geometric parameters are ...
    • Gyratory Crusher Bucket-type Attached to the Excavator Arm 

      Eftimie, Dorin (Universitatea "Dunărea de Jos" din Galați, 2014)
      The paper aims to present a new technological solution of a crusher bucket-type attached to excavator arm. The optimized solution of the gyratory crusher bucket type is the computer aided design (CAD) which enables virtual ...
    • High-Performance Concretes-Behavior of Fresh Concrete 

      Paiovici, Roza; Ionescu, Ştefania (Universitatea "Dunarea de Jos" din Galaţi, 2003)
      Most of the research in High-Performance Concretes (HPC) since the publication of the State-of-the-Art Report in 1990 has concentrated on increasing basic knowledge regarding HPC performance and properties rather than ...
    • Humidity Determination in Concrete by Using the Dielectric Method 

      Ionescu, Ștefania (Universitatea "Dunărea de Jos" din Galați, 2011)
      The presence of humidity in the building envelope elements decays their structural and technological properties, favours heat losses and, in time, also the deterioration and degradation of the building. In order to avoid ...
    • Hydraulic Plant with Energy Inertia Recuperator for Single Bucket Excavator 

      Axinti, Gavril (Universitatea "Dunărea de Jos" din Galați, 2004)
      This paper analyse the driving solutions for hydraulic single bucket excavators, by the point of view of the energy consumptionon the technological working cycle. It is presented a solution of accumulation and re-circulate ...
    • Hydrostatic Motor with Variable Engine Capacity 

      Eftimie, Dorin; Bujoi, Cristian (Universitatea "Dunărea de Jos" din Galați, 2014)
      This paper presents a new constructive solution of a hydrostatic motor with variable engine capacity. The 3D model realized with NX 7.5 software and also the ensemble drawing offer designers the opportunity to standardize ...
    • Influence of structure Mass on the Behavior of Seismic Energy Hidraulic Dissipation Devices 

      Șcheaua, Fănel; Gavril, Axinti (Universitatea "Dunărea de Jos" din Galați, 2012)
      Since many solutions exist today in the field of structure isolation against the destructive action of earthquakes, the authors present a simple solution that can provide complete protection against shock and vibration ...
    • Influence of Geometric Parameters on Forces in Single Point Incremental Forming Process for Various Parts 

      Blaga, Adrian; Oleksik, Valentin; Bologa, Octavian; Pîrvu, Bogdan (Universitatea "Dunărea de Jos" din Galați, 2011)
      The purpose of this study was to investigate the influence of geometrical parameters on the forces in two directions in a single point incremental forming process. For this purpose, the authors have chosen three types ...
    • Influence of Geometrical Parameters on Rigidity of the Worm-Gearing Tooth 

      Ghelase, Daniela; Daschievici, Luiza; Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2002)
      By means of an original numerical method, the authors study the influence of the parameters of the worm-gearing tooth (diametral quotient, radius of profile curvature, profile angle of the worm, number of gear teeth) on ...
    • Influence of the Behavior of Nonlinear viscoelastic Systems Bearing on the Dynamic of Bridge Structures 

      Leopa, Adrian; Năstac, Silviu (Unioversitatea "Dunărea de Jos' dibn Galati, 2011)
      Modern structures of bridges and viaducts require dynamic isolation systems, designed to eliminate or mitigate the destructive effects of intense traffic and seismic activity on these constructions. This paper studies ...
    • Influence of the Road Dislevels Upon the Traction System of the Self-Propelled Machines 

      Axinti, Gavril; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2007)
      The kinematic response is caused by run away about the equipment of the movement modeled in the mechanic system with degree of freedom. The kinematic excitation considered produces harmonic formally to the organ axle of ...
    • Influence on Energy Efficiency Oof Mechanisms Operated With Hydraulic Cylinders 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2013-05-01)
      During the operation of mechanisms operated by hydraulic cylinders significant energy losses occur. They is due to the loss of flow, pressure and friction losses that occur in the system. This paper highlights the connection ...
    • Installation for Centrifugal Casting of Bimetallic Jacks 

      Eftimie, Dorin; Ciurea, Aurel (Universitatea "Dunărea de Jos" din Galați, 2002)
      This issue presents an bronze casting technology of steel jack by centrifuging as well as it’s installation. We try to realize a machine by date theme for mechanization of technological operation. The constructive solution ...