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National Repository of Grey Literature 13 records found  previous11 - 13  jump to record: Search took 0.01 seconds. 
Vibrations of rotor supported in magnetic bearings with impacts
 Půst, Ladislav ; Kozánek, Jan
The retainer bearing is usually a ball or roller bearing. The combination of dry Coulomb friction with viscous and material damping and Hertzs law are used to describe this dynamical behaviour.
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Permanent and active magnetic bearings
 Kozánek, Jan ; Stolařík, M. ; Šafr, M.
In this paper, the design of a permanent contactless radial bearings was studied. The motor will be used as dynamic stand for further research in the field of vibration and stability problems in rotor dynamics. Due to insufficient reliability of analytical calculation of permanent magnet forces, preliminary measurements on a simple device were performed. The results obtained were used for the dimensioning of the bearings to be designed.
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Pohyb rotoru ve dvou bezdotykových ložiskách
 Půst, Ladislav ; Kozánek, Jan ; Veselý, Jan
Two problems of contactless bearing-passive magnetic bearing and aerodynamic bearing - are presented. Numerical solution of 6 differential equations enable to study the influence both of the rotor weight and of impacts in retainer bearings on the dynamic responses of unbalanced rotor. A new method of measurement and evaluation of segment motion in aerodynamic bearings is proposed and tested.
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National Repository of Grey Literature : 13 records found   previous11 - 13  jump to record:
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