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Statements

Subject Item
n2:RIV%2F49777513%3A23520%2F14%3A43922075%21RIV15-MSM-23520___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Certain high-speed rotors consist of a few different parts. Though each part is balanced before the rotor is assembled, the whole assembly can be unbalanced. The potential unbalance is usually caused by clearance spaces between individual components, e.g. between a shaft and a bladed wheel. This paper deals with different types of rotor unbalance and their influence on dynamic response of the mechanical system consisting of a rotor, a stator and floating bearing rings. A steady-state response of differently unbalanced rotors is computed using multi-body software AVL EXCITE Power Unit. Furthermore, it is shown that the unbalance has only limited influence on subharmonic components of the response of such a mechanical system and even perfectly balanced systems can vibrate considerably. This behavior is caused by plain bearings with two oil films. Certain high-speed rotors consist of a few different parts. Though each part is balanced before the rotor is assembled, the whole assembly can be unbalanced. The potential unbalance is usually caused by clearance spaces between individual components, e.g. between a shaft and a bladed wheel. This paper deals with different types of rotor unbalance and their influence on dynamic response of the mechanical system consisting of a rotor, a stator and floating bearing rings. A steady-state response of differently unbalanced rotors is computed using multi-body software AVL EXCITE Power Unit. Furthermore, it is shown that the unbalance has only limited influence on subharmonic components of the response of such a mechanical system and even perfectly balanced systems can vibrate considerably. This behavior is caused by plain bearings with two oil films.
dcterms:title
Influence of rotor unbalance on dynamic response of high-speed rotors Influence of rotor unbalance on dynamic response of high-speed rotors
skos:prefLabel
Influence of rotor unbalance on dynamic response of high-speed rotors Influence of rotor unbalance on dynamic response of high-speed rotors
skos:notation
RIV/49777513:23520/14:43922075!RIV15-MSM-23520___
n3:aktivita
n4:I n4:S
n3:aktivity
I, S
n3:dodaniDat
n10:2015
n3:domaciTvurceVysledku
n6:3846741 n6:6430988
n3:druhVysledku
n14:O
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
21581
n3:idVysledku
RIV/49777513:23520/14:43922075
n3:jazykVysledku
n9:eng
n3:klicovaSlova
bearing rings; high-speed rotor; steady-state response; dynamic unbalance; rotordynamics
n3:klicoveSlovo
n5:dynamic%20unbalance n5:high-speed%20rotor n5:steady-state%20response n5:rotordynamics n5:bearing%20rings
n3:kontrolniKodProRIV
[AC9BE3CB6C2D]
n3:obor
n16:JQ
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n10:2014
n3:tvurceVysledku
Hajžman, Michal Smolík, Luboš
n13:organizacniJednotka
23520