A proposal of the methodology for dynamic force coefficients identification of labyrinth seal with use of active magnetic bearings

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F18%3A43952561" target="_blank" >RIV/49777513:23520/18:43952561 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8624704" target="_blank" >https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8624704</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
A proposal of the methodology for dynamic force coefficients identification of labyrinth seal with use of active magnetic bearings
Original language description
Today, the main goal of all turbomachinery vendors is to improve theirs products performance and reduce the cost. In case of steam turbine, even slight improvement can bring high save of money. One of the components which has significant influence on the turbomachine efficiency is the labyrinth seal. The increasing rotational speed and power and on the other side decreasing clearance between rotor and stator cause that seal forces excessively affect the rotor stability similarly to bearings. Special test rigs are built to experimentally identify the seal dynamic force coefficients, which are then used for seal design optimization. This paper is focused on identification of seal dynamic force coefficients with use of active magnetic bearings which support the rotor. The magnetic bearings allow contactless rotor excitation and force measurement which is the main advantage compared to traditional test rigs where mechanically connected shakers and springs are usually used. The proposal of the currently being built device is introduced together with the identification method of seal dynamic force coefficients.
Czech name
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Czech description
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Project
<a href="/en/project/EF16_026%2F0008389" target="_blank" >EF16_026/0008389: Research Cooperation for Higher Efficiency and Reliability of Blade Machines</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 2018 18th International Conference on Mechatronics – Mechatronika (ME) 2018
ISBN
978-80-214-5542-9
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
61-65
Publisher name
IEEE, Inc.
Place of publication
New York
Event location
Brno, Čzech Republic
Event date
Dec 5, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000465104200010

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