Now showing items 1-16 of 16

    • Damage Detection at Vibration Passive Isolation Devices 

      Năstac, Silviu; Leopa, Adrian (Universitatea "Dunărea de Jos" din Galați, 2011)
      This paper deals with some theoretical aspects combined with experimental tests regarding early damage identification in vibroisolation devices. This study was a natural fall-back of an analysis regarding the behaviour ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Project Management and Engineering Issues 

      Huidan, Livia (Universitatea "Dunărea de Jos" din Galați, 2011)
      Starting with some attributes specific to a project manager’s work, the paper presents the functions which must be performed by a project leader – planning, organizing, staffing, directing, motivating, leading – and makes ...
    • 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 ...
    • 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 ...
    • 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. ...
    • 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 ...
    • Optimized Method for Synthesis of a Mechanism for Controlling a Hydraulic Operated Machine 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2011)
      This paper presents how can be design a mechanism capable of self command. It is intended as a high uniformity of the way of action, so that external control is as safe and simple. Are taken into account the concrete conditions ...
    • Structural and Kinematic Analysis of Planetary Gearings 

      Naidin, Gigi (Universitatea "Dunărea de Jos" din Galați, 2011)
      By bounding two or more gearings, using a role bear-axle element, we can obtain simple transmissions with caged wheels. A transmission with gear wheels generally has, an axle of fixed rotation, called main axle. The gear ...
    • 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 ...
    • 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. ...
    • The Analysis of the CAM Mechanisms Using Matrix Calculations 

      Naidin, Gigi (Universitatea "Dunărea de Jos" din Galați, 2011)
      The present study presents the kinematic analysis of a mechanical structure created by cam mechanism RR-CC. It was determined the position, velocity and angular acceleration of the tapped, as depending on the position ...
    • Seismic Base Isolation of Structures Using Frictuon Pendulum Bearings 

      Șcheaua, Fănel (Universitatea 'Dunărea de Jos" din Galați, 2011)
      Base isolation systems have become a significant element to enhance reliability during an earthquake. One type of base isolation system is Friction Pendulum Bearing in which the superstructure is isolated from the foundation ...