Engineering Mechanics

International Conference

Proceedings Vol. 19 (2013)


ENGINEERING MECHANICS 2013

19th INTERNATIONAL CONFERENCE
May 13 – 16, 2013, Svratka, Czech Republic
;
Editors: Igor Zolotarev and Vojtěch Radolf

Copyright © 2013 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-47-5 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

IDENTIFICATION OF DAMPING PARAMETERS OF BLADED DISKS
Kellner J., Zeman V., Šašek J., Kubín Z.
pages 254 - 272, full text

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 vacuum machine to provide material and construction damping. The measured modal properties and damping parameters identification are used for model correction as well as detailed meshed model in commercial software.


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Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.


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