About: Investigation of Vibration Mitigation of Flexibly Support Rigid Rotors Equipped with Controlled Elements

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About: Investigation of Vibration Mitigation of Flexibly Support Rigid Rotors Equipped with Controlled Elements Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The subject of investigations presented in this article is achieving the optimum attenuation of lateral vibration of rotors by means of two design variants of constraint elements: semiactive magnetorheological squeeze film dampers and actively controlled hydrodynamic bearings. The damping effect of magnetorheological dampers is controlled by the change of magnetic flux generated in electric coils and of the hydrodynamic bearings by the change of magnitude of the proportional gain of a feedback controller exciting movement of the bearing housings. In the developed mathematical models the rotor is considered as absolutely rigid and the controllable constraint elements are represented by force couplings. The aim of the analysis is to deal with approaches leading to minimizing amplitude of the rotor steady state vibration and magnitude of the force transmitted into the rotor casing and to compare efficiency of both design variants. The performed computer simulations show that the arrangement with the magnetorheological squeeze film damper gives better results in reducing magnitude of the transmitted force than those when the rotor is supported by hydrodynamic bearings with actively controlled position of the bearing housings. The subject of investigations presented in this article is achieving the optimum attenuation of lateral vibration of rotors by means of two design variants of constraint elements: semiactive magnetorheological squeeze film dampers and actively controlled hydrodynamic bearings. The damping effect of magnetorheological dampers is controlled by the change of magnetic flux generated in electric coils and of the hydrodynamic bearings by the change of magnitude of the proportional gain of a feedback controller exciting movement of the bearing housings. In the developed mathematical models the rotor is considered as absolutely rigid and the controllable constraint elements are represented by force couplings. The aim of the analysis is to deal with approaches leading to minimizing amplitude of the rotor steady state vibration and magnitude of the force transmitted into the rotor casing and to compare efficiency of both design variants. The performed computer simulations show that the arrangement with the magnetorheological squeeze film damper gives better results in reducing magnitude of the transmitted force than those when the rotor is supported by hydrodynamic bearings with actively controlled position of the bearing housings. (en)
Title	Investigation of Vibration Mitigation of Flexibly Support Rigid Rotors Equipped with Controlled Elements Investigation of Vibration Mitigation of Flexibly Support Rigid Rotors Equipped with Controlled Elements (en)
skos:prefLabel	Investigation of Vibration Mitigation of Flexibly Support Rigid Rotors Equipped with Controlled Elements Investigation of Vibration Mitigation of Flexibly Support Rigid Rotors Equipped with Controlled Elements (en)
skos:notation	RIV/61989100:27230/12:86084659!RIV13-MSM-27230___
http://linked.open...avai/predkladatel	Fakulta strojní
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0070), P(GAP101/12/2520), Z(MSM6198910027)
http://linked.open...iv/cisloPeriodika	48
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Zapoměl, Jaroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta strojní
http://linked.open...dnocenehoVysledku	142946
http://linked.open...ai/riv/idVysledku	RIV/61989100:27230/12:86084659
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	vibration mitigation; feedback control; journal bearing; magnetorheological squeeze film damper; Rigid rotor (en)
http://linked.open.../riv/klicoveSlovo	journal bearing Rigid rotor magnetorheological squeeze film damper vibration mitigation feedback control
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[18ABD94D8C66]
http://linked.open...i/riv/nazevZdroje	Procedia Engineering
http://linked.open...in/vavai/riv/obor	JR
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Active vibration damping of rotor with the use of parametric excitation of journal bearings IT4Innovations Centre of Excellence
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Ferfecki, Petr Zapoměl, Jaroslav
http://linked.open...n/vavai/riv/zamer	Výpočetně náročné počítačové simulace a optimalizace
issn	1877-7058
number of pages	8 (xsd:int)
http://localhost/t...ganizacniJednotka	27230
is http://linked.open...avai/riv/vysledek of	Investigation of Vibration Mitigation of Flexibly Support Rigid Rotors Equipped with Controlled Elements

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