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A computational method for determination of a frequency response characteristic of flexibly supported rigid rotors attenuated by short magnetorheological squeeze film dampers
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SYSNO ASEP 0368837 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title A computational method for determination of a frequency response characteristic of flexibly supported rigid rotors attenuated by short magnetorheological squeeze film dampers Author(s) Zapoměl, Jaroslav (UT-L) RID, ORCID
Ferfecki, Petr (UT-L) RID
Čermák, L. (CZ)Number of authors 3 Source Title Applied and Computational Mechanics - ISSN 1802-680X
Roč. 5, č. 1 (2011), s. 101-110Number of pages 10 s. Publication form CD-ROM - CD-ROM Action Computational Mechanics 2010 Event date 08.11.2010-10.11.2010 VEvent location Nečtiny Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords rotors ; magnetorheolocical dampers ; steady state response Subject RIV JR - Other Machinery CEZ AV0Z20760514 - UT-L (2005-2011) Annotation 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. 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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