• 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 ...
    • Numerical Simulations of the Special Isolation Devices Against Vibratory Actions 

      Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2007)
      In this paper the author use the physical and mathematical models for the antiseismic and antivibrational elastic systems and describe the dynamic behaviour of this systems, for the few types of the vital equipment - ...
    • On the Influence of the Working Tools Shape in the Mixing Proces 

      Debeleac, Carmen-Nicoleta; Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2011)
      Optimisation of the working tools used in industrial factory becomes a fast and effective method to be implemented easier in the production process. The article presents more design variants of a concrete mixer tools. The ...
    • On the Rheological Behaviour of the soil in the Artificial Compacting Process 

      Oproescu, Gheorghe; Debeleac, Carmen; Leopa, Adrian; Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2008)
      The artificial compacting of the soil is made mostly with machines with dynamical action such as vibrating plate, vibrating beater or vibrating drum. Their effect on the compacting process of the soil has two origins: the ...
    • Virtual Prototype for Simulation and Analysis of Traction Systems in Interaction with Roads 

      Axinti, Adrian-Sorin; Năstac, Silviu-Marian; Gavril, Axinti (Universitatea "Dunărea de Jos" dn Galați, 2008)
      This study deals with numerical simulation of an equipment with full hydrostatic driving system. Based on the clasical mathematical models - single degree of freedom and two degree of freedom models, it was developed a ...
    • Working Characteristics of the Special Isolation Devices Against Vibratory Actions 

      Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2007)
      The actual researches for finding optimal antiseismic protection solutions are straightening to the few areas of activity: the first area of research is the base isolation of buildings or theirs parts, against the ...