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  • Rotor instability is one of the most serious problems of high-speed rotors supported by sliding bearings. Even though there are many solutions based on passive improvement of the bearing geometry to enlarge the operational speed range of the journal bearing, the paper deals with a working prototype of a system for the active vibration control of journal bearings with the use of piezoactuators. The actively controlled journal bearing consists of a movable bushing, which is actuated by two piezoactuators. The journal vibration is measured by a pair of proximity probes. The control system enables run-up, coast-down and steady-state rotation. A real-time simulator dSpace encloses the control loop. Force produced by piezoactuators and acting at the bushing is controlled according to error signals derived from the proximity probe output signals. As it was proved by experiments the active vibration control extends considerably the range of the operational speed.
  • Rotor instability is one of the most serious problems of high-speed rotors supported by sliding bearings. Even though there are many solutions based on passive improvement of the bearing geometry to enlarge the operational speed range of the journal bearing, the paper deals with a working prototype of a system for the active vibration control of journal bearings with the use of piezoactuators. The actively controlled journal bearing consists of a movable bushing, which is actuated by two piezoactuators. The journal vibration is measured by a pair of proximity probes. The control system enables run-up, coast-down and steady-state rotation. A real-time simulator dSpace encloses the control loop. Force produced by piezoactuators and acting at the bushing is controlled according to error signals derived from the proximity probe output signals. As it was proved by experiments the active vibration control extends considerably the range of the operational speed. (en)
Title
  • Active vibrations control of journal bearings with the use of piezoactuators
  • Active vibrations control of journal bearings with the use of piezoactuators (en)
skos:prefLabel
  • Active vibrations control of journal bearings with the use of piezoactuators
  • Active vibrations control of journal bearings with the use of piezoactuators (en)
skos:notation
  • RIV/61989100:27230/13:86085879!RIV14-GA0-27230___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GAP101/12/2520)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 59406
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27230/13:86085879
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • fluid-induced vibration; rotor instability; piezoactuators; hydrodynamic bearings; journal bearings; Active vibration control (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [F4C1D94650A4]
http://linked.open...i/riv/nazevZdroje
  • Mechanical Systems and Signal Processing
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 36
http://linked.open...iv/tvurceVysledku
  • Los, Jaroslav
  • Tůma, Jiří
  • Šimek, Jiří
  • Škuta, Jaromír
http://linked.open...ain/vavai/riv/wos
  • 000319302100023
issn
  • 0888-3270
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.ymssp.2012.11.010
http://localhost/t...ganizacniJednotka
  • 27230
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