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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EF16_026%2F0008389" target="_blank" >EF16_026/0008389: Výzkumná spolupráce pro dosažení vyšší účinnosti a spolehlivosti lopatkových strojů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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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Počet stran výsledku

5

Strana od-do

61-65

Název nakladatele

IEEE, Inc.

Místo vydání

New York

Místo konání akce

Brno, Čzech Republic

Datum konání akce

5. 12. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000465104200010