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Browsing by Author "Zalewski, Robert"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Analysis of the dependence between a temperature and working parameters of the MR damper
    (Wydawnictwa AGH, 2007) Bajkowski, Jerzy; Bajkowski, Marcin; Grzesikiewicz, Wiesław; Sofonea, Mircea; Shillor, Meir; Zalewski, Robert
    In this paper detailed description of temperature influence on MR damper working parameters has been described. Prototype of such a device and its mathematical description taking into considerations a thermal balance, have been proposed. Basing on experimental results, a connection between temperature and operating parameters of tested MR damper has been revealed.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    New possibilities of the active damping of vibrations
    (Wydawnictwa AGH, 2007) Bajkowski, Jerzy; Tadzik, Piotr; Zalewski, Robert
    In presented paper a new proposition of granular structure, composed on the basis of granular materials placed in hermetic space with underpressure, as a damping material for vibrated steel beam has been described. Three different types of laboratory tests have been described: fundamental strength properties of granular testing specimen, bending of granular beam and damping of the steel beam vibrations using special granular structures. Obtained results revealed that the behavior of such a structure could be easily controlled by underpressure parameter. Also damping characteristics of vibrated steel beam could be controlled by changing internal underpressure value.