Căutare după Autor "Crudu, Ion"

Afișează articolele 1-7 of 7

    • Diagniosis of the Technical State of Complex Mechanical Systems 

      Crudu, Ion; Spânu, Constantin; Rîpă, Minodora; Teletin, Claudiu (Universitatea "Dunărea de Jos" din Galaţi, 2007)
      The paper presents a model for prediction and diagnosis of technical state of complex mechanical systems based on the systems theory. In diagnosis studies is used a model that has only input and output parameters as a ...

    • Hydrogen Wear of the Slab Continuous Casting Guiding Tribosystems 

      Crudu, Ion; Teletin, Claudiu; Spânu, Constantin; Bendrea, Consta; Șarpe, Adrain; Sandu, Alin (UDJG, 2011)
      The steel continuous casting equipment consists of a set of technical systems which, tribologically, may be regarded as tribological systems. The process model contains input –output, command and control parameters. Both ...

    • Principles and Methodologic Peculiarities in the Research of the Tribosystem with Sliding on Translation Cyclic Movement 

      Poștaru, Gheorghe; Ajder, Vasile; Crudu, Ion; Poștaru, Andrei; Ceban, Victor (Universitatea ”Dunărea de Jos” din Galați, 2009)
      The work presents methodological aspects of behavior research in the cyclical slip tribosystems regarding the dynamics of contact processes. Taking into account the fact that in the contact, processes of various origins ...

    • Researches on the Presence of Hydrogen During Continuous Casting of Steel 

      Teletin, Claudiu; Crudu, Ion; Spânu, Constantin (Universitatea ”Dunărea de Jos” din Galați, 2009)
      Due to the negative effects that hydrogen has on steels, its content in steels has lately been given special attention. The paper presents the evolution of hydrogen content in steel during the manufacturing and continuous ...

    • Sliding Indentation Behaviour of x 65 Hydrogenated Steel Grade 

      Spânu, Constantin; Teletin, Claudiu; Crudu, Ion; Mereuță, Valentin (Universitatea ”Dunărea de Jos” din Galați, 2009)
      The paper presents an experimental research on non-hydrogenated and hydrogenated X 65 steel samples. The steel was obtained from a continuous casting slab, this grade being used in petroleum industry. The hydrogen has an ...

    • The Dynamic Behavoir of the Sliding Tribosystem in Cyclical Translation Motion in Unsteady Duty 

      Poștaru, Gheorghe; Crudu, Ion; Poștaru, Andrei; Ceban, Victor (UDJG, 2011)
      The present paper deals with certain methodological aspects of researching the behaviour of the sliding tribosystem in cyclical translation motion from the point of view of the dynamics of contact processes. The dynamic ...

    • The Presence of Hydrogen as Wear Environment for the Mechanical System of the Continuous Casting Equipment 

      Teletin, Claudiu; Spânu, Constantin; Crudu, Ion (UDJG, 2010)
      In the last years the continuous casting of the steel has a tremendous development. In the same time, the casting steel quality requirements become higher. The hydrogen as environment of the casting diminishes the steel ...