About: Vibration of circular bladed disk with imperfections

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.worldscinet.com/ijbc/21/2110/S0218127411030210.html
Description	The steady state response of a model of circular bladed disk with imperfection is investigated. Disk imperfection results from additional two groups of damping heads fixed on opposite ends of one diameter. These damping heads are introduced into the computing model as additional point mass, damping and stiffness. Such type of imperfection causes the bifurcation of double eigenfrequencies into pairs of close eigenfrequencies. The effect of imperfection is examined both numerically on three-dimensional nonrotating FE-model and analytically on a simplified split 2DOF model of rotating disk excited by single point harmonic force. Nonlinear friction connection is analyzed and equivalent linear damping coefficient is derived and used in the calculation procedure. It is shown that nonproportional distribution of damping strongly influences the high of resonance peaks. Some examples of response curves illustrate the dynamic properties of stationary and rotating disks with mass-damping-stiffness imperfection. The steady state response of a model of circular bladed disk with imperfection is investigated. Disk imperfection results from additional two groups of damping heads fixed on opposite ends of one diameter. These damping heads are introduced into the computing model as additional point mass, damping and stiffness. Such type of imperfection causes the bifurcation of double eigenfrequencies into pairs of close eigenfrequencies. The effect of imperfection is examined both numerically on three-dimensional nonrotating FE-model and analytically on a simplified split 2DOF model of rotating disk excited by single point harmonic force. Nonlinear friction connection is analyzed and equivalent linear damping coefficient is derived and used in the calculation procedure. It is shown that nonproportional distribution of damping strongly influences the high of resonance peaks. Some examples of response curves illustrate the dynamic properties of stationary and rotating disks with mass-damping-stiffness imperfection. (en)
Title	Vibration of circular bladed disk with imperfections Vibration of circular bladed disk with imperfections (en)
skos:prefLabel	Vibration of circular bladed disk with imperfections Vibration of circular bladed disk with imperfections (en)
skos:notation	RIV/61388998:_____/11:00368679!RIV12-AV0-61388998
http://linked.open...avai/predkladatel	Ústav termomechaniky AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA101/09/1166), Z(AV0Z20760514)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Pešek, Luděk Půst, Ladislav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	238347
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/11:00368679
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	circular bladed disk; vibration; imperfection; nonlinear damping (en)
http://linked.open.../riv/klicoveSlovo	imperfection vibration circular bladed disk nonlinear damping
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[B092EBD09961]
http://linked.open...i/riv/nazevZdroje	International Journal of Bifurcation and Chaos
http://linked.open...in/vavai/riv/obor	BI
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Research of dynamic behaviour and optimalization of complex rotating systems with non-linear couplings and high damping materials
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	21
http://linked.open...iv/tvurceVysledku	Pešek, Luděk Půst, Ladislav
http://linked.open...ain/vavai/riv/wos	000297520100011
http://linked.open...n/vavai/riv/zamer	Complex dynamical systems in thermodynamics, fluid and solid mechanics
issn	0218-1274
number of pages	12 (xsd:int)
http://bibframe.org/vocab/doi	10.1142/S0218127411030210
is http://linked.open...avai/riv/vysledek of	Vibration of circular bladed disk with imperfections Vibration of circular bladed disk with imperfections

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