Original title:
Numerické simulace rotorové soustavy se dvěma trhlinami uložené v radiálních aktivních magnetických ložiskách
Translated title:
Numerical Simulation of a Two-Crack Rotor System Supported by Radial Active Magnetic Bearings
Authors:
Ferfecki, Petr ; Ondrouch, Jan Document type: Papers Conference/Event: Dynamika strojů 2008, Praha (CZ), 2008-02-05 / 2008-02-06
Year:
2008
Language:
cze Abstract:
[cze][eng] V této práci je pomocí numerických simulací zkoumána ustálená složka odezvy rotorové soustavy se dvěma trhlinami a uložené v radiálních aktivních magnetických ložiskách.In this work a computational simulation is utilized to investigate the steady-state response of a two-crack rotor system supported by radial active magnetic bearings on an excitation by centrifugal forces of discs unbalances. The static deflection of a shaft is considered larger than vibration amplitude of a shaft and therefore a so-called breathing behaviour of cracks is introduced. Parametric study has been carried out in order to investigate influence of different values of the angle between cracks on the steady-state response of a rotor system. The results presented in this work can therefore help with detection of cracks in the shaft.
Keywords:
active magnetic bearing; breathing crack; rotor system Project no.: CEZ:AV0Z20760514 (CEP) Host item entry: Dynamika strojů 2008, ISBN 978-80-87012-10-9
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/11104/0167234