Number of the records: 1  

Using rotor kit Bently Nevada for experiments with aerostatic bearings

  1. 1.
    0315942 - ÚT 2009 RIV CZ eng C - Conference Paper (international conference)
    Šimek, J. - Kozánek, Jan - Steinbauer, P. - Neusser, Z.
    Using rotor kit Bently Nevada for experiments with aerostatic bearings.
    [Dynamické experimenty s aerostatickými ložisky na rotorovém stendu Bently Nevada.]
    X. International Conference on the Theory of Machines and Mechanisms. Liberec: Technical University of Liberec, 2008, s. 595-600. ISBN 978-80-7372-370-5.
    [International Conference on the Theory of Machines and Mechanism /10./. Liberec (CZ), 02.09.2008-04.09.2008]
    R&D Projects: GA ČR GA101/06/1787
    Institutional research plan: CEZ:AV0Z20760514
    Keywords : rotor systems * aerostatic bearings * stiffness and damping identification
    Subject RIV: BI - Acoustics

    Superstructure of Rotor Kit Bently Nevada was designed for identification of aerostatic journal bearing dynamic properties. The test stand enables to run the test shaft up to 10 000 rpm and to excite test bearing by forces with frequency from 0,1 Hz to about 100 Hz. Up to now measured results show reasonable agreement with calculation as concerns quasi-static stiffness and direct elements of stiffness matrix. The agreement between theory and experiment of main elements of damping matrix is somewhat worse and cross-coupling elements of stiffness and damping have considerable scatter. More sophisticated methods of dynamic coefficients idenification are elaborated to improve credibility of results.

    Byla navržena a zkonstruována nadstavba rotorového stendu Bently Nevada pro identifikaci dynamických vlastností aerostatických ložisek. Maximální otáčky rotoru jsou 10000 ot/min a budící frekvence od 0,1 Hz do 100 Hz. Dosavadní výsledky vykazují shodu identifikovaných veličin matice tuhosti a v hlavních prvcích i matice tlumení. Nediagonální prvky matice tlumení nejsou dosud dostatečně reprodukovatelné a jsou ovlivněny chybami experimentů. Proto jsou navrženy úpravy experimentu i vyhodnocení tak, aby poskytly robustnější výsledky.
    Permanent Link: http://hdl.handle.net/11104/0166008

     
     
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.