About: Use of Cyclic Symmetry Properties in Vibration Analysis of Bladed Disks with Friction Contacts between Blades

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Use of Cyclic Symmetry Properties in Vibration Analysis of Bladed Disks with Friction Contacts between Blades Goto Sponge NotDistinct Permalink

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
Description	The development of steam turbine’s blades is closely related to the computer modelling of their vibrations. In this work, a numeric method that (i) implements the calculation of nonlinear vibrations (ii) makes use of the cyclic symmetry of the bladed disk and (iii) models structural contact elements between blades is presented. The cyclic symmetry properties of the bladed disk are used for the calculations of its natural frequencies and mode shapes, then, these are employed in the analysis of its nonlinear vibrations. The contact elements reinforce the bladed disk and act as friction dampers in case of its exceeding excitation. Contact areas between blades are modeled via coupling elements implementing dry Coulomb friction. The method is demonstrated on the particular case of the bladed disk equipped with the LSB48 blades and excited by travelling-wave of two nodal diameters. Finally, the accuracy of the mathematical model and the concept of a contact stiffness are discussed. The development of steam turbine’s blades is closely related to the computer modelling of their vibrations. In this work, a numeric method that (i) implements the calculation of nonlinear vibrations (ii) makes use of the cyclic symmetry of the bladed disk and (iii) models structural contact elements between blades is presented. The cyclic symmetry properties of the bladed disk are used for the calculations of its natural frequencies and mode shapes, then, these are employed in the analysis of its nonlinear vibrations. The contact elements reinforce the bladed disk and act as friction dampers in case of its exceeding excitation. Contact areas between blades are modeled via coupling elements implementing dry Coulomb friction. The method is demonstrated on the particular case of the bladed disk equipped with the LSB48 blades and excited by travelling-wave of two nodal diameters. Finally, the accuracy of the mathematical model and the concept of a contact stiffness are discussed. (en)
Title	Use of Cyclic Symmetry Properties in Vibration Analysis of Bladed Disks with Friction Contacts between Blades Use of Cyclic Symmetry Properties in Vibration Analysis of Bladed Disks with Friction Contacts between Blades (en)
skos:prefLabel	Use of Cyclic Symmetry Properties in Vibration Analysis of Bladed Disks with Friction Contacts between Blades Use of Cyclic Symmetry Properties in Vibration Analysis of Bladed Disks with Friction Contacts between Blades (en)
skos:notation	RIV/47718684:_____/14:#0000570!RIV15-TA0-47718684
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(TE01020068)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Polach, Pavel
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Výzkumný a zkušební ústav Plzeň s.r.o.
http://linked.open...dnocenehoVysledku	52260
http://linked.open...ai/riv/idVysledku	RIV/47718684:_____/14:#0000570
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	bladed disk; cyclic symmetry; natural frequency; mode shape; nonlinear vibration; friction contact; contact stiffness; LSB48 blade (en)
http://linked.open.../riv/klicoveSlovo	bladed disk natural frequency nonlinear vibration contact stiffness mode shape cyclic symmetry friction contact LSB48 blade
http://linked.open...ontrolniKodProRIV	[A8C26BF15FAA]
http://linked.open...v/mistoKonaniAkce	High Tatras, Slovak Republic
http://linked.open...i/riv/nazevZdroje	Procedia Engineering, Modelling of Mechanical and Mechatronic Systems MMaMS 2014
http://linked.open...in/vavai/riv/obor	JE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Centre of research and experimental development of reliable energy production
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Polach, Pavel Voldřich, Josef Lazar, Jan Míšek, Tomáš
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2014-11-25 (xsd:date)
issn	1877-7058
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.proeng.2014.12.122
http://purl.org/ne...btex#hasPublisher	Elsevier

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software