Original scientific paper

Active vibration reduction of rigid rotor by kinematic excitation of bushes of journal bearings

J. Ondrouch ; Department of Mechanics, Technical University of Ostrava, Czech Republic
P. Ferfecki ; Structural Integrity & Materials Design, VSB – Technical University of Ostrava, Czech Republic
Z. Poruba ; Department of Mechanics, Technical University of Ostrava, Czech Republic

Abstract

Possibilities of active lateral vibration reduction of a symmetric, rigid rotor supported by journal bearings are given. They were obtained by computational modelling. Efficiency of the feedback P and PD controllers in the stable revolution interval was examined. The linearized rotor system model was used. The results of the theoretical analysis are assigned for a testing stand where the bearing bush motions are deactivated by piezoelectric actuators connected to the controllers.

Keywords

bearing; controller; rotor system; vibration reduction

Hrčak ID:

43652

URI

https://hrcak.srce.hr/43652

Publication date:

1.4.2010.

Article data in other languages: croatian

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