New Numerical and Statistical Determination of Probes’ Arrangement in Turbo-machinery

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F23%3A00563511" target="_blank" >RIV/61388998:_____/23:00563511 - isvavai.cz</a>

Alternative codes found

RIV/67985807:_____/23:00563511

Result on the web

<a href="https://link.springer.com/article/10.1007/s42417-022-00685-8" target="_blank" >https://link.springer.com/article/10.1007/s42417-022-00685-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s42417-022-00685-8" target="_blank" >10.1007/s42417-022-00685-8</a>

Result language

angličtina

Original language name

New Numerical and Statistical Determination of Probes’ Arrangement in Turbo-machinery

Original language description

Purpose Blade tip timing (BTT) is a promising non-contact method for the measurements of blade tip displacement in turbo-machinery. Despite the advantages, this method offers, one of its drawbacks is the highly under-sampled data measured. The quality of these data depends on the position of the probes in the engine casing. This work aims to determine the placement of the probes for which the highest quality of data, hence the best accuracy of the vibration parameters are obtained. Methods Thus, the present work proposes a statistical BTT method based on the minimization of some statistical variables to determine the placement of the probes. Results This work presents a defined number of probes, which of the regular and irregular probe arrangement leads to the determination of vibration parameters with higher accuracy. It is found that mostly all the subsets with probes irregularly spaced are the ones giving a better accurate estimation of the amplitudes. Conclusion This work has proposed statistical methods of determination of the probes arrangement, based on the minimization of the RMSE in the case of synchronous vibrations and the combination of synchronous and asynchronous vibrations. In addition, we have shown statistically that in almost all the scenarios considered, the irregular probe placements are the ones for which the vibration parameters are obtained with the highest accuracy.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

<a href="/en/project/EF15_003%2F0000493" target="_blank" >EF15_003/0000493: Centre of Excellence for Nonlinear Dynamic Behaviour of Advanced Materials in Engineering</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Journal of Vibration Engineering & Technologies

ISSN

2523-3920

e-ISSN

2523-3939

Volume of the periodical

11

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

2025-2035

UT code for WoS article

000854744100001

EID of the result in the Scopus database

2-s2.0-85138172104