1995-2015: Recent submissions

Afișează articolele 101-120 of 326

    • Assisted Research of the Rigidity Amplitude of Worm-Gearing Tooth 

      Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2007)
      By means of own software, which evaluates the rigidity of the worm-gear-tooth system, the paper presents some aspects regarding the amplitude of rigidity. The study was made on the elasticity characteristic of worm-gearing ...

    • The Study of the Influence of Stability for Hydraulic Tracked Excavators Excavators with Bucket Using Assisted 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2007)
      The technological process of digging the natural earth using hydraulic excavators with bucket has the following steps: dislocation, transporting and depositing in means of transportation. During this process the excavator ...

    • All-Purpose Low Frequency Numerical Filter 

      Oproescu, Gheorghe (Universitatea "Dunărea de Jos" din Galați, 2007)
      A real signal is a complex system with mixed components. In addition to needed components appear unusable components with different origin, namely noise. The clearance or the reduction of the unwanted components is ...

    • 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 ...

    • The Grinding Charge of Rotary Mills 

      Ene, Gheorghe (Universitatea "dunărea de Jos" din Galați, 2007)
      This paper presents the achievemens of grinding charge for the tube mills with balls.The author shows charactheristic size of grinding media charge: bulk density, porosity, filling degree. Regarding this last size,the author ...

    • 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 ...

    • The Energetic Analysis of Hydraulic Actuators Used for Small Mobile Cranes 

      Axinti, Gavril (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper presents applied usual solutions to the action of light self-propelled cranes, up to 6 tf. It is accomplished an analysis of usual solutions of action and more over of comanding the equipment. It is analized ...

    • 3D Modelling a Spur Gearing with Solid Edge 

      Haraga, Georgeta (Universitatea "Dunărea de Jos' din Galați, 2006)
      The software Solid Edge software is a useful 3D computer aided design (CAD) running under Windows. The commands and icons of Solid Edge software offer the possibility to design various solids. In this paper are presented ...

    • Aspects Regarding the Vibrations of the Contacts of a compressed air Switch 

      Dragomirescu, Cristian; Craifăleanu, Andrei (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper studies the vibrations of the contacts of a compressed air switch, by considering two models. Time variation of the elongation is presented, as well as spectral representations determined by means of Fourier ...

    • 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 ...

    • The Idenfication (In Simulink) of an Elastic 

      Bălan, George C.; Ioniță, Bogdan (Universitatea "Dunărea de Jos" din Galați, 2007)
      In this paper is realized the identification of an elastic system with one degree of freedom, for which we experimentally pick up (in SIMULINK) the resonance curve. The system parameters (m, c, k) are determined using ...

    • Dextrous Hand-Grasping Preshaping 

      Starețu, Ionel (Universitatea "Dunărea de Jos" din Galați, 2007)
      The research conducted in human grasping have emphasized three main phases: the visual location of the target, when the object is analyzed an recognized, the reaching phase of grasping, when the hand preshapes in order ...

    • Study of Noise Produced by Elevators Inside Buildings 

      Picu, Mihaela; Picu, Ana Alexandra (Universitatea "Dunărea de Jos" din Galați, 2007)
      This paper studies the way in which elevators movement produces work perturbing noises. The studies were made on two types of buildings: a modern building, with noiseless elevators and another one with old elevators. ...

    • On the Linear Elastic Deformations for plane curved Bems in their Plan Loded, Using the Finite Element Method 

      Dumitrache, Petru; Potîrniche, Aurora (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      The study want to make a comparison between tho calculus methods of the linear elastic deformations for plane curved beams in their plan loaded. The results obtained with the finite element analysis have some important ...

    • The Analysis of the Torsional Springs' Inertia Influence on the Resonance Characteristic of the elastical Mechanical Systems 

      Drăgan, Nicuşor (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      The study presents the phases and the final result of the physical and mathematical models' elaboration of elastic mechanical systems with one degree of freedom taking into consideration the distributed mass of the twist ...

    • Cost Optimazation at the Worm Cutter Splinting 

      Micu, Adrian; Simionescu, Cristian-Silviu; Daşchievici, Luiza (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      In order to get goods at the worm cutter splinting, an important method is to reduce the energetical charging and the cinematic unevennesses. It is explain that the costs are important to get a good price at the splinting ...

    • 3D Modelling a Spur Gearing with Solid Edge 

      Haraga, Georgeta (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      The software Solid Edge software is a useful 3D computer aided design (CAD) running under Windows. The commands and icons of Solid Edge software offer the possibility to design various solids. In this paper are presented ...

    • The Influence of Nonlinear Behavior of Viscous-Elastic Element on Equipment Foundation with Dynamical Apply Stresses 

      Leopa, Adrian (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      This paper presents a dynamical analyze on the foundation of machine when are apply stresses such the beat (percussion) in nonlinear behavior of the viscous-elastic elements hypothesis. In this way can be evaluate (more ...

    • Dynamical Characterization Behavior of Machine Foundation whit Percussion Stresses Applied 

      Leopa, Adrian (Universitatea "Dunărea de Jos" din Galați, 2006)
      This paper presents a dynamical analyze on the foundation of machine when are apply stresses such the beat (percussion). In this way can be evaluate dynamical response of the structure, in our case foundation of machines, ...

    • Computational Dynamics of the Elastic Antivibrational Systems with Non-Linear Stiffness 

      Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2006)
      In this paper the author present a set of mathematical models, usable to simulate and analyse the static and dynamic behaviour aspects, both for the passive antivibrational and anti-seismical systems, and for all the ...