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Statements

Subject Item
n2:RIV%2F49777513%3A23520%2F13%3A43920166%21RIV14-GA0-23520___
rdf:type
skos:Concept n15:Vysledek
rdfs:seeAlso
http://www.kme.zcu.cz/acm/index.php/acm/article/view/90/214
dcterms:description
This paper is aimed at modelling of friction effects in blade shrouding which are realized by means of friction elements placed between blades. In order to develop a methodology of modelling, two blades with one friction element in between are considered only. Flexible blades fixed to a rotating disc are discretized by FEM using 1D Rayleigh beam elements derived in rotating space as well as the friction element modelled as a rigid body. The blades and the friction element are connected through two concurrent friction planes, where the friction forces arise on the basis of centrifugal force acting on the friction element. The linearization of friction is performed using the harmonic balance method to determine equivalent damping coefficients in dependence on the amplitudes of relative slip motion between the blades and the friction element. The methodology is applied to a model of two real blades and will be extended for the whole bladed disc with shrouding. This paper is aimed at modelling of friction effects in blade shrouding which are realized by means of friction elements placed between blades. In order to develop a methodology of modelling, two blades with one friction element in between are considered only. Flexible blades fixed to a rotating disc are discretized by FEM using 1D Rayleigh beam elements derived in rotating space as well as the friction element modelled as a rigid body. The blades and the friction element are connected through two concurrent friction planes, where the friction forces arise on the basis of centrifugal force acting on the friction element. The linearization of friction is performed using the harmonic balance method to determine equivalent damping coefficients in dependence on the amplitudes of relative slip motion between the blades and the friction element. The methodology is applied to a model of two real blades and will be extended for the whole bladed disc with shrouding.
dcterms:title
Linearization of friction effects in vibration of two rotating blades Linearization of friction effects in vibration of two rotating blades
skos:prefLabel
Linearization of friction effects in vibration of two rotating blades Linearization of friction effects in vibration of two rotating blades
skos:notation
RIV/49777513:23520/13:43920166!RIV14-GA0-23520___
n15:predkladatel
n16:orjk%3A23520
n3:aktivita
n17:P
n3:aktivity
P(GA101/09/1166)
n3:cisloPeriodika
1
n3:dodaniDat
n10:2014
n3:domaciTvurceVysledku
n6:8113602 n6:3846741 n6:8163014
n3:druhVysledku
n20:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
85011
n3:idVysledku
RIV/49777513:23520/13:43920166
n3:jazykVysledku
n19:eng
n3:klicovaSlova
bladed disc, friction, harmonic balance method, damping
n3:klicoveSlovo
n4:friction n4:harmonic%20balance%20method n4:damping n4:bladed%20disc
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[3D246B4FDA68]
n3:nazevZdroje
Applied and Computational Mechanics
n3:obor
n7:JQ
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n8:GA101%2F09%2F1166
n3:rokUplatneniVysledku
n10:2013
n3:svazekPeriodika
7
n3:tvurceVysledku
Byrtus, Miroslav Zeman, Vladimír Hajžman, Michal
s:issn
1802-680X
s:numberOfPages
18
n13:organizacniJednotka
23520