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Description
  • The coupling of bending and torsional vibration due to the presence of transverse fatigue crack in a rotor system supported by radial active magnetic bearings (AMB) is investigated. For this purpose the modified stiff-ness matrix with six degrees of freedom per node is used and takes into account all the coupling phenomena that exists in a cracked rotor. The partial opening and closing of crack is considered by means of status of stress in-tensity factor along the crack edge. The equation of motion of rotor system is nonlinear due to response depend-ent non-linear breathing crack model and nonlinear force coupling introduced by AMB. A response of the rotor system is obtained by direct integration of nonlinear equation of motion. When the torsional harmonic excitation is applied to the rotor system with the crack then the sum and difference of torsional frequency around a bending natural frequency is observed in the lateral vibration spectrum. Influence of different values of crack parameters for two d
  • The coupling of bending and torsional vibration due to the presence of transverse fatigue crack in a rotor system supported by radial active magnetic bearings (AMB) is investigated. For this purpose the modified stiff-ness matrix with six degrees of freedom per node is used and takes into account all the coupling phenomena that exists in a cracked rotor. The partial opening and closing of crack is considered by means of status of stress in-tensity factor along the crack edge. The equation of motion of rotor system is nonlinear due to response depend-ent non-linear breathing crack model and nonlinear force coupling introduced by AMB. A response of the rotor system is obtained by direct integration of nonlinear equation of motion. When the torsional harmonic excitation is applied to the rotor system with the crack then the sum and difference of torsional frequency around a bending natural frequency is observed in the lateral vibration spectrum. Influence of different values of crack parameters for two d (en)
  • U rotorové soustavy s trhlinou uložené v radiálních aktivních magnetických ložiskách je zkoumána vazba mezi ohybovým a torzním kmitáním. Za tímto účelem je uvážena modifiko-vána matice tuhosti se šesti stupni volnosti v uzlu prvku, která umožňuje uvážit exitující vaz-by v rotoru s trhlinou. Postupné otevírání a zavírání trhliny je provedeno pomocí součinitele intenzity napětí stanoveného na hraně trhliny. Odezva rotorové soustavy je vypočítána přímou integrací soustavy pohybových rovnic. Pomocí frekvenčních spekter je zkoumán pro dvě rychlosti rotoru vliv různých parametrů trhlin (cs)
Title
  • Study of coupling between bending and torsional vibration of cracked rotor system supported by radial active magnetic bearings
  • Study of coupling between bending and torsional vibration of cracked rotor system supported by radial active magnetic bearings (en)
  • Zkoumání vazby mezi ohybovým a torzním kmitáním z důvodu přítomnosti příčné únavo-vé trhliny v rotorové soustavě uložené v radiálních aktivních magnetických ložiskách (cs)
skos:prefLabel
  • Study of coupling between bending and torsional vibration of cracked rotor system supported by radial active magnetic bearings
  • Study of coupling between bending and torsional vibration of cracked rotor system supported by radial active magnetic bearings (en)
  • Zkoumání vazby mezi ohybovým a torzním kmitáním z důvodu přítomnosti příčné únavo-vé trhliny v rotorové soustavě uložené v radiálních aktivních magnetických ložiskách (cs)
skos:notation
  • RIV/61989100:27690/07:00016674!RIV08-MSM-27690___
http://linked.open.../vavai/riv/strany
  • 427-436
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP101/07/P368), Z(MSM6198910027)
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
  • 453239
http://linked.open...ai/riv/idVysledku
  • RIV/61989100:27690/07:00016674
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • rotor system; active magnetic bearing; breathing crack (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [9C3B98CD2114]
http://linked.open...i/riv/nazevZdroje
  • Applied and Computational Mechanics
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
  • 1
http://linked.open...iv/tvurceVysledku
  • Ferfecki, Petr
http://linked.open...n/vavai/riv/zamer
issn
  • 1802-680X
number of pages
http://localhost/t...ganizacniJednotka
  • 27690
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