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    Magnetic bearing stiffness control using frequency band filtering (1989)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Active magnetic bearings can be implemented with frequency band-reject filtering that decreases the bearing stiffness and damping at a small bandwidth around a chosen frequency. The control scheme was used for reducing a rotor dynamic force, such as an imbalance force, transmitted to the bearing stator. The scheme creates additional system vibration modes at the same frequency. It also shows that the amount of force reduction is limited by the stability requirement of these modes.
    Keywords: MECHANICAL ENGINEERING
    Type: NASA, Lewis Research Center, Rotordynamic Instability Problems in High-Performance Turbomachinery, 1988; p 341-352
    Format: application/pdf
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