Optimizing probes positioning in Blade Tip Timing systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F22%3A00546825" target="_blank" >RIV/61388998:_____/22:00546825 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985807:_____/22:00546825

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0888327021007895" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0888327021007895</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ymssp.2021.108441" target="_blank" >10.1016/j.ymssp.2021.108441</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimizing probes positioning in Blade Tip Timing systems

Popis výsledku v původním jazyce

The monitoring of the blades in bladed disk assembly is done via a continuous determination and analysis of the blade dynamics, which is mostly subjected to different type of excitation forces inducing the synchronous and asynchronous vibration of the blades. These vibrations can cause fatigue and crack of the blade, which can damage the overall turbo-machinery. Thus, avoiding such a damage motivates the determination of the blade’s vibration. Which is done traditionally by the used of strain gauge, which unfortunately monitor only the instrumented blade but not all the blade at the same time. Nowadays, such vibration measurements are done by Blade Tip Timing (BTT) system, where the arrangement of the probe is extremely important in order to extract useful information of the blade’s vibration signal. Thus, this article proposes a simple approach for the determination of the optimal probe positioning based on the minimization of the coherence of the measurement matrix derived from the mathematical model used to infer the vibration parameters, while the blade exhibits synchronous and asynchronous vibrations.

Název v anglickém jazyce

Optimizing probes positioning in Blade Tip Timing systems

Popis výsledku anglicky

The monitoring of the blades in bladed disk assembly is done via a continuous determination and analysis of the blade dynamics, which is mostly subjected to different type of excitation forces inducing the synchronous and asynchronous vibration of the blades. These vibrations can cause fatigue and crack of the blade, which can damage the overall turbo-machinery. Thus, avoiding such a damage motivates the determination of the blade’s vibration. Which is done traditionally by the used of strain gauge, which unfortunately monitor only the instrumented blade but not all the blade at the same time. Nowadays, such vibration measurements are done by Blade Tip Timing (BTT) system, where the arrangement of the probe is extremely important in order to extract useful information of the blade’s vibration signal. Thus, this article proposes a simple approach for the determination of the optimal probe positioning based on the minimization of the coherence of the measurement matrix derived from the mathematical model used to infer the vibration parameters, while the blade exhibits synchronous and asynchronous vibrations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Mechanical Systems and Signal Processing

ISSN

0888-3270

e-ISSN

1096-1216

Svazek periodika

166

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

108441

Kód UT WoS článku

000704768200004

EID výsledku v databázi Scopus

2-s2.0-85116330423