Arthra Repository at University "Dunărea de Jos" of Galaţi: Recent submissions

  • Considerations Upon Breaking Strength of Nodular Cast Iron Under Plastic Deformation 
    Ciurea, Aurel; Eftimie, Dorin; Goanță, Adrian Mihai (Universitatea "Dunărea de Jos" din Galați, 2002)
    The work aims to demonstrate the existence of a mathematics connection between breaking strength and degree of plastic deformation in case of nodular cast iron. Research made along time starting 1932-1934 until now, ...
  • Robot Type Manipulator for Serving of a Bolts Hardening System Outline 
    Ciurea, Aurel; Eftimie, Dorin; Ciurdariu, Gheorghe (Universitatea "Dunărea de Jos" din Galați, 2002)
    The paper work refers to a flexible manufacturing cell where the bolts hardening system within a relatively wide range of dimensions is completely automatic. For this purpose, a robot type manipulator serving an induction ...
  • Phisycal and Mathematical Model Forvibratory Driving Process Analysis 
    Cauteș, Gheorghe; Năstac, Silviu (Universitatea "Dunărea de jos" din Galați, 2002)
    Vibratory driving of pile is one of the technologies used for powerless basement soil deep consolidation. This process consist by favouring the pile penetration in soil, whereupon when vibrations using. Experimentally, was ...
  • Mathematical Model for Frequency-Dependent soil Propagation Analysis 
    Cauteș, Gheorghe; Năstac, Silviu (Universitatea "Dunărea de Jos" din Galați, 2002)
    Vibration analyses of advanced technology facilities typically must consider frequency as well as amplitude of vibration. A soil propagation model is proposed which will allow the use of site-specific, measurable, frequency ...
  • Structural Requirements of Bituminous Paving Mixtures 
    Bordea, Carmen; Năstac, Silviu (Universitatea "Dunărea de Jos" din Galați, 2002)
    In this work, the autors present some of the principal issues and challenges associated with the design and production of bituminous mixtures that can meet the ever-increasing structural needs of modern pavements.
  • The Behavior of Mechanical Model Wheel' S Loader 
    Bordea, Carmen; Drăgan, Nicușor (Universitatea "Dunărea de Jos" din Galați, 2002)
    In this work is described a dynamical model for the tire-suspension system of wheel loader. This model is based on the subdivision of the global dynamical system into its physical components: the tire, the wheel, ...
  • Response Behaves of Earthmoving Vehicle Where the Slip Ratio are Variation Linear 
    Bordea, Carmen (Universitatea "Dunărea de Jos" din Galați, 2002)
    In this paper, the autor conceptualize the loader equations of motion for dynamic analysis of traction system where the slip ratio are variation linear. The wheel loader simulation model was formulated in terms of ...
  • The Analysis of the Dynamic Response of the Hydrostatic Driving Systems in a Closed Circuit 
    Gavril, Axinti; Năstac, Silviu; Axinti, Adrian-Sorin; Potârniche, Aurora (Universitatea "Dunărea de Jos" din Galați, 2002)
    The hydrostatic actions in a closed circuit were remarked in the action of the technological equipment both for achievement of translation motions with linear hydrostatic engines with bilateral stem and for rotational ...
  • The calculation of Pressure Forces Resultant About Rotor Bearings of Volumetrical Pumps and Motors with Radial Palettes 
    Arghirescu, Cristea L. (Universitatea "Dunărea de Jos" din Galați, 2002)
    The objective of this paper refers to the presentation the calculation of pressure forces resultant about the palettes and the lateral rotor surface of volumic pumps and motors with radial palettes. This calculation is ...
  • The Dynamic Study of the Crane "MT-40" in the Process of Gyrations 
    Anghelache, Diana (Universitatea "Dunărea de Jos" din Galați, 2002)
    This work proposes the determination of the dynamic behavior of a tower crane in the process of gyration in sight of a move burdens in the most disadvantageous conditions and namely: in the crane’ s hook it is a solid body ...
  • 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 ...
  • Algorithms for Objects' Shape Recognition and Measurement Before Gripping 
    Srarețu, Ionel; Itu, Alexandru (Universitatea "Dunărea de Jos" din Galați, 2011)
    The paper proposes an algorithmic methodology to solve a necessary first step, namely visualization, recognition and measurement of objects, for gripping, in particular by means of anthropomorphic grippers for robots. ...
  • A Combined Method for Dimensioning Mechanisms Operated with Hydraulic Cylinders 
    Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2011)
    This paper presents a method of synthesis of a mechanism used in ship steering systems. The case examines the use of force as elements of hydraulic differential cylinders articulated at both ends. Sizing the difficulty ...
  • 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 ...
  • Considerations Regarding the Stability of High-Speed Shafts 
    Dragomirescu, Cristian; Crăifăleanu, Andrei; Iliescu, Victor (Universitatea "Dunărea de Jos" din Galați, 2011)
    The paper studies the problem of the dynamic stability of a high-speed shaft, subjected to bending vibrations. The case of normal machine tool shafts placed on rigid or flexible bearings is considered for different situations. ...
  • Dynamic Calculation of the Mechanical Transmissions with Gears and Elastic Shafts 
    Drăgan, Nicușor (Universitatea "Dunărea de Jos" din Galați, 2011)
    This study presents the elaboration of the physical and mathematical dynamic models of the mechanical systems with elastic shafts and discrete mass elements subjected to dynamical loads, taking into consideration ...
  • 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 ...
  • The Role of Reinforcement Learning Business Integrated Manufacturing 
    Dașchievici, Luiza; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2011)
    Reinforcement learning (RL) has received some attention in recent years from researchers, because it deals with the problem of how an autonomous manufacturing system can learn to select proper actions for achieving its ...
  • About the Hysteresis-Loop of the Mechanical Oscillators 
    Cauteș, Gheorghe (Universitaea "Dunărea de Jos" din Galați, 2011)
    The work presents firstly the representation of the typical Hysteresis-loop as function between the indoor forces of the oscillator as friction and elastic forces dependant on displacement and, otherwise, as function between ...
  • Processsing and Analyzing Object Images With the view of Object Grasping 
    Starețu, Ionel; Itu, Alexandru (Universitatea "Dunărea de Jos" din Galați, 2011)
    This paper presents a solution based on image processing techniques used for analyzing images of objects which will be grasped, using existing software technologies completed with specific software modules. Digital image ...

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