Influence of Feedback Controllers on the Response with Impacts for the Rotor System Supported by Radial Active Magnetic Bearings with Cracked Shaft

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27690%2F09%3A00021975" target="_blank" >RIV/61989100:27690/09:00021975 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Feedback Controllers on the Response with Impacts for the Rotor System Supported by Radial Active Magnetic Bearings with Cracked Shaft

Popis výsledku v původním jazyce

When excessive lateral rotor vibration occurs during start up, shut down of rotor, undesirable operating conditions, etc. components of the radial active magnetic bearing are protected from impacts by an auxiliary bearings. Impacts occurring between theinner ring of auxiliary bearing and the rotor and between the disc and the stationary part are investigated. The transverse fatigue crack is included into the mathematical model through the nonlinear shaft element derived on the base of the fracture mechanics theory. The impacts are implemented into the mathematical model by means of nonlinear force coupling, which is composed of its normal and tangential component. Applicability of new designed computational procedure has been verified by means of computer simulations on the testing rotor system. It was shown that the controller parameters can significantly change the character of excited vibration. The newly designed procedure makes possible to investigate the cracked rotors and impac

Název v anglickém jazyce

Influence of Feedback Controllers on the Response with Impacts for the Rotor System Supported by Radial Active Magnetic Bearings with Cracked Shaft

Popis výsledku anglicky

When excessive lateral rotor vibration occurs during start up, shut down of rotor, undesirable operating conditions, etc. components of the radial active magnetic bearing are protected from impacts by an auxiliary bearings. Impacts occurring between theinner ring of auxiliary bearing and the rotor and between the disc and the stationary part are investigated. The transverse fatigue crack is included into the mathematical model through the nonlinear shaft element derived on the base of the fracture mechanics theory. The impacts are implemented into the mathematical model by means of nonlinear force coupling, which is composed of its normal and tangential component. Applicability of new designed computational procedure has been verified by means of computer simulations on the testing rotor system. It was shown that the controller parameters can significantly change the character of excited vibration. The newly designed procedure makes possible to investigate the cracked rotors and impac

Druh

D - Stať ve sborníku

CEP obor

JR - Ostatní strojírenství

OECD FORD obor

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Projekt

<a href="/cs/project/GP101%2F07%2FP368" target="_blank" >GP101/07/P368: Numerické modelování kmitání rotorových soustav uložených v aktivních magnetických ložiskách pracujících za nežádoucích provozních podmínek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Computational mechanics 2009

ISBN

978-80-7043-824-4

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

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Název nakladatele

Department of Mechanics, Faculty of Applied Sciences, University of West Bohemia

Místo vydání

Plzeň

Místo konání akce

Nečtiny

Datum konání akce

9. 11. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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