Căutare 1995-2015 după Data publicării

Afișează articolele 41-60 of 326

    • 3D Modelling Multiple Faucets Bodies 

      Rădulescu, Cătălin; Goanță, Adrian Mihai (Universitatea Dunărea de Jos" din Galați, 2004)
      In this work is doctored the way of tackles the and realization of a innards by the students in the program Autocad. The work has as objective a these accomodation with the commands 3D the and a crossing from 2D to 3D ...

    • Analitical evaluation of the Dynamic Performances for the Wheel Loader Analysis 

      Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2004)
      In this paper the author propose a physical and mathematical model, useful to analyse the dynamic performances of the wheel loader equipment. It supposed that the evaluation of the natural frequencies constitute a well ...

    • Autolisp & DCL Method for Automatic Technological Design 

      Goanță, Adrian Mihai; Rădulescu, Cătălin; Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2004)
      The work has as purpose to present the general principles of working with the technological processors in designing the casting technologies and to put into evidence the advantages of this designing method. As examples, the ...

    • Analysis of the Dynamic Response to Stochastic Actions on the Tilting System of the Loader Bucket with Hydraulic Correlator 

      Petrea, Ioan; Leopa, Adrian (Universitatea "Dunărea de Jos" din Galați, 2004)
      The resistance encountered by the active organ – the bucket – of the loader when digging into the material pile is part of the category of external influences applied to the equipment. Generally this force is not constant ...

    • A Solution to a Deflection Beam Problem 

      Dumitrache, Petru; Hauk, Niculai; Goanță, Adrian Mihail (Universitatea "Dunărea de Jos" din Galați, 2004)
      The present paper shows how the minimal total potential energy principle it is used for elastic systems in the case of the determination of the linearelastic displacements which determines the beams bending. Qualitative aspects ...

    • The Coefficient of Restitution in the Plastic Deformation Process 

      Drăgulin, Ichim; Leopa, Adrian (Universitatea "Dunărea de Jos" din Galați, 2004)
      In the analysis of dynamic processes and plastic deformation which appear on the forging and die forging equipments dint the shocks (forging hammers and screw presses), it is use frequently theoretical study of de collision ...

    • About of the Analytical Exactly Solutions of the Differential Equations of the Non-Linear Oscillators 

      Cauteș, Gheorghe (Universitatea "Dunărea de Jos" din Galați, 2004)
      This work presents the manner of the solving of the non-linear differential equations from order II with the form &y& + p(t)y = q(t)y1-2a . These equations can characterize the excited vibrations of the mechanical ...

    • About Concrete Consolidation and Vibration 

      Paiovici, Roza; Ionescu, Ștefania (Universitatea "Dunărea de Jos" din Galați, 2004)
      Proper vibration of fresh concrete is an important process in order to ensure optimum strength, durability, and appearance of quality precast products. Accepted practices in the precast industry are unique in some respects ...

    • Research Regarding the Investigation of Steel Hardness 

      Picu, Mihaela (Universitatea "Dunărea de Jos" din Galați, 2004)
      Mobile hardness testing is on the advance: in these times of cost pressures and higher quality requirements there is a quick and economical supplement to stationary hardness testing in the modern production process. The ...

    • Regarding the Efficiency of the Decelaration Through Impedance Coiling of the Hydraulic Cylinders 

      Hauk, Niculai; Dumitrache, Petru (Universitatea "Dunarea de Jos" din Galați, 2004)
      The paper present a point of view sustained by calculations about the efficiency of the deceleration system by impedance coiling of the hydraulic cylinders. It is shown that the simple presentation of the impedance ...

    • The influence of the Rolling track on the Dynamic Comportment of the equipement on tyres 

      Axinti, Gavril; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2005)
      The paper presents aspects connected to the comportment of the vehicle on wheels which moves on dislevement soil. A complete dynamic model is realized for a vehicle on wheels with tyres, which wheels are rigidly tied to ...

    • Simulation of Dynamical Systems with Linear and Non-Linear Behavior in Scicos Environment 

      Gillich, Gilbert-Rainer (Universitatea "Dunărea de Jos" din Galați, 2005)
      The paper presents the SCICOS program and the way how to formalise dynamic system with known physical and mathematical models in this environment. Using simple examples from the field of vibrations, it is shown how “continuous ...

    • Experimental-Computational Determination of Epoxy Resin mechanical Properties, used in Assembly Applications 

      Tsiafis, Ioannis; Bouzakis, Konstantinos-Dionisios; Michailidis, Nikoloas; Asimakopoulos, Antonios; Korlos, Aposolos (Universitatea "Dunărea de Jos" din Galați, 2005)
      A wide use of adhesive substances and especially of epoxy resins in metal structures with elevated strength is registered during the last years. Epoxy resins possess enhanced mechanical, chemical and physical properties, ...

    • 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 ...

    • Study about Dynamic Behavior of Suspended Sieve to Machine of Sorted Self-Propelled KT 45/18/13 

      Axinti, Gavril; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2006)
      In his work studied machine of sorted self-propelled KT 45/18/13. This is a made in product brand name Romania S. C. RALLY-BM. Com. Srl and is used-up for the assortment through material vibrations of grain miscellaneous ...

    • The Numerical Pretend of Behavior in a impermanent system of Slow Hydrostatical Motive with Radial Pistons and Multiperiodics Sinusoidal Cams 

      Axinti, Gavril (Universitatea "Dunărea de Jos" din Galați, 2006)
      The work is approaching theoretical and experimental appearances in concerning static and dynamic characteristics of slow hydrostatical motive with radial pistons. Is presented the static model of characteristics of flow ...

    • Study of the internal Resonance of a two-Degree-of-Freedom Non-Linear Dynamic System 

      Dragomirescu, Cristian; Craifăleanu, Andrei (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper analyses a two- degree- of- freedom dynamic system, by taking into account its non- linearity. The case of the internal resonance is studied and, by local analysis, Hopf bifurcations are emphasized. Periodic ...

    • 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 ...

    • Computer Symulation of the Earthmoving Machine to Pass Over Roughness Road 

      Debeleac, Carmen-Nicoleta (Universitatea "Dunărea de Jos' din Galați, 2006)
      In this paper the author proposed a model for computer simulation of earthmoving machine passing over the roughness roads. It's important to know the dynamic overloads into the bucket rotation system which is frecvently ...

    • Vibration Measurement Equipment 

      Grigorescu, Luiza (Universitatea "Dunărea de Jos" din Galați, 2006)
      This paper describes the principles of operation of typical instrumentation used in the measurement of shock and vibration. It deals with the measurement of parameters which characterize the total (broad-band) signal.