NUMERICAL SIMULATIONS OF STEADY-STATE OF TWO-CRACK ROTOR SYSTEM SUPPORTED BY RADIAL ACTIVE MAGNETIC BEARINGS
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F12%3A86081413" target="_blank" >RIV/61989100:27230/12:86081413 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27740/12:86081413
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
NUMERICAL SIMULATIONS OF STEADY-STATE OF TWO-CRACK ROTOR SYSTEM SUPPORTED BY RADIAL ACTIVE MAGNETIC BEARINGS
Original language description
The steady-state response of a two-crack rotor system is investigated by computational simulations in the paper. The rotor system supported by radial active magnetic bearings is excited by centrifugal forces of discs unbalances. A flexibility matrix of Bernoulli beam element takes into account coupling phenomena between directions of vibration. The phenomenon occurs in cracked rotors. The couplings express relations between vibration in different directions, i.e. bending-torsion, bending-longitudinal, and torsion-longitudinal. The flexibility matrix elements of the cracked rotor are derived using the concepts of fracture mechanics for transverse surface crack. Partial opening/closing of cracks implemented in motion equations is determined by sign of stress intensity factor for mode I. The factor is computed for the crack edge. The motion equations are nonlinear because the system response depends on breathing of cracks and nonlinear force coupling is introduced by radial active magneti
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JR - Other machinery industry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/ED1.1.00%2F02.0070" target="_blank" >ED1.1.00/02.0070: IT4Innovations Centre of Excellence</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Sborník vědeckých prací Vysoké školy báňské - Technické univerzity Ostrava. Řada strojní
ISSN
1210-0471
e-ISSN
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Volume of the periodical
LVII
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
10
Pages from-to
57-66
UT code for WoS article
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EID of the result in the Scopus database
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