Identification of damping parameters of bladed disks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F13%3A43918468" target="_blank" >RIV/49777513:23520/13:43918468 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Identification of damping parameters of bladed disks
Original language description
Regarding steam turbine blade vibrations, damping of blades as well as whole bladed disk vibrations are one of the most important parameters in terms of steam turbine operation. Values of the damping parameters depend on properties of material used for blades and disc as well as on geometric parameters of blade shroud contact areas with friction elements. The in-house made software enables fast parametric optimization using a multi-criteria function, for example angle of contact planes or mass of friction elements. The real bladed disk was excited in vakuum machine to provide material and construction damping. The measured modal properties and damping parameters identification are used for model correction as well as for detailed meshed model in commercial software.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JR - Other machinery industry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA101%2F09%2F1166" target="_blank" >GA101/09/1166: Research of dynamic behaviour and optimalization of complex rotating systems with non-linear couplings and high damping materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Engineering Mechanics 2013
ISBN
978-80-87012-47-5
ISSN
1805-8256
e-ISSN
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Number of pages
19
Pages from-to
254-272
Publisher name
Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
Place of publication
Prague
Event location
Svratka
Event date
May 13, 2013
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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