Stability of a rotor vibration in journal bearings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F06%3A00013804" target="_blank" >RIV/61989100:27230/06:00013804 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Stability of a rotor vibration in journal bearings
Original language description
The paper deals with stability of the rotor vibration in a journal bearing. The vibration signal, describing the rotor motion, is a complex signal. The full multispectra of the rotor run up and coast down are employed to evaluate a magnitude as a function of the rotor rotation speed. The multispectrum slices serve to verification of the simplified mathematical model of a rotor system and to analyze the rotor vibration using a procedure based on the Nyquist stability criterion. As it is well known the self-excited vibration, called fluid induced vibration, occurs when the rotor rotation speed crosses a certain threshold
Czech name
Stabilita rotorových vibrací v kluzném ložisku
Czech description
Referát pojednává o stabilitě pohybu rotorů v kluzných ložiscích. V referátu je popsán jednoduchý matematický model se soustředěnými parametry pro pohyb rotoru v mazivu. Hlavní část referátu je soustředěna na stabilitu systému užitím Nyquistova kriteriastability

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BI - Acoustics and oscillation
OECD FORD branch
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Project
<a href="/en/project/GA101%2F04%2F1530" target="_blank" >GA101/04/1530: Development of gear toothmeshing inspection and testing methods aimed at gearbox noise and vibration reduction and an increase in load capacity</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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