Počet záznamů: 1

A computational method for determination of a frequency response characteristic of flexibly supported rigid rotors attenuated by short magnetorheological squeeze film dampers

  1. 1.
    0368837 - UT-L 2012 RIV CZ eng J - Článek v odborném periodiku
    Zapoměl, Jaroslav - Ferfecki, Petr - Čermák, L.
    A computational method for determination of a frequency response characteristic of flexibly supported rigid rotors attenuated by short magnetorheological squeeze film dampers.
    Applied and Computational Mechanics. Roč. 5, č. 1 (2011), s. 101-110 ISSN 1802-680X.
    [Computational Mechanics 2010. Nečtiny, 08.11.2010-10.11.2010]
    Výzkumný záměr: CEZ:AV0Z20760514
    Klíčová slova: rotors * magnetorheolocical dampers * steady state response
    Kód oboru RIV: JR - Ostatní strojírenství

    Lateral vibration of rotors can be significantly reduced by inserting the damping elements between the shaft and the casing. For this purpose, the squeeze film dampers lubricated by magnetorheological fluid can be applied. This article presents a procedure developed for investigation of the steady state response of rigid rotors coupled with the casing by flexible elements and short magnetorheological dampers. Their lateral vibration is governed by nonlinear (due to the damping forces) equations of motion. The developed procedure makes possible to determine the steady state response of rotors excited by their unbalance, to determine magnitude of the forces transmitted through the coupling elements in the supports into the stationary part and is intended for proposing the control of the damping effect to achieve optimum performance of the dampers.
    Trvalý link: http://hdl.handle.net/11104/0203066