Original title: Reducing vibration amplitude by means of damping control in support elements of flexible rotors
Authors: Zapoměl, Jaroslav ; Pešek, Luděk ; Viet, La Duc ; Savin, L. ; Kozánek, Jan
Document type: Papers
Conference/Event: DYMAMESI 2019, Cracow (PL), 20190305
Year: 2019
Language: eng
Abstract: Damping in the supports of rotors loaded by unbalance has influence on the vibration amplitude and critical speed of rotating machines. To minimize the oscillation amplitude during the rotor acceleration and running over the critical velocity, the damping in the support elements should be reduced. The reduction cannot be sudden but must be distributed in time. This requires to determine the proper moment of time when to start this manipulation and the time of its duration. This paper deals with investigation of the possibility of utilization of controllable squeeze film dampers lubricated by magnetorheological oil to accomplish this manipulation.
Keywords: accelerating rotors; damping control; magnetorheological dampers; vibration reduction
Host item entry: The International Colloquium Dynamics of Machines and Mechanical Systems with Interactions : DYMAMESI 2019, ISBN 978-80-87012-70-3

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0301733

Permalink: http://www.nusl.cz/ntk/nusl-407921


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Research > Institutes ASCR > Institute of Thermomechanics
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