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Stability Investigation of the Steady State Response of Flexibly Supported Rigid Rotors
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SYSNO ASEP 0368841 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Stability Investigation of the Steady State Response of Flexibly Supported Rigid Rotors Author(s) Zapoměl, J. (CZ)
Ferfecki, Petr (UT-L) RIDNumber of authors 2 Source Title Vibration Problems ICOVP 2011. - Berlin : Springer, 2011 / Náprstek J. ; Horáček J. ; Okrouhlík M. ; Marvalová B. ; Verhulst F. ; Sawicki J.T. - ISSN 0930-8989 - ISBN 978-94-007-2068-8 Pages s. 521-527 Number of pages 8 s. Action International Conference on Vibration Problems /10./ - ICOVP 2011 Event date 05.09.2011-08.09.2011 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country DE - Germany Keywords rotors ; semiactive damping elements ; magnetorheological fluid Subject RIV JR - Other Machinery CEZ AV0Z20760514 - UT-L (2005-2011) Annotation A new semiactive coupling element working on the principle of squeezing two concentric films formed by classical and magnetorheological liquids has been proposed to achieve the optimum attenuation of the lateral vibration of rotors. The damping effect is controlled by changing the magnetic field induction. The steady state solution of the equations of motion is obtained by application of a collocation method and its stability is evaluated using the Floquet theory. The newly proposed controllable damping device enables to minimize amplitude of the rotor vibration by adapting the damping effect to the current operating conditions. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2012
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