Number of the records: 1

Deterministic and Statistical Methods for Evaluating Turbine Rotor Speed Instabilities

SYSNO ASEP	0517332
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Deterministic and Statistical Methods for Evaluating Turbine Rotor Speed Instabilities
Author(s)	Procházka, Pavel (UT-L)_{RID, ORCID} Maturkanič, Dušan (UT-L) Košina, Jan (UT-L)_RID Brabec, Marek (UIVT-O)_{RID, SAI, ORCID}
Number of authors	4
Source Title	IEEE Transactions on Instrumentation and Measurement. - : Institute of Electrical and Electronics Engineers - ISSN 0018-9456 Roč. 69, č. 4 (2020), s. 1416-1425
Number of pages	10 s.
Publication form	Print - P
Language	eng - English
Country	US - United States
Keywords	vibrations ; frequency measurement ; fluctuations ; rotors ; blades ; turbines
Subject RIV	BI - Acoustics
OECD category	Applied mechanics
Subject RIV - cooperation	Institute of Computer Science - Applied Statistics, Operational Research
R&D Projects	EF15_003/0000493 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Limited access
Institutional support	UT-L - RVO:61388998 ; UIVT-O - RVO:67985807
UT WOS	000521163500046
EID SCOPUS	85082023593
DOI	10.1109/TIM.2019.2909942
Annotation	The paper deals with the measurement and assessment of rotor speed instabilities. Mean attention is paid to measurements on turbine rotors while using the Blade Tip-Timing Method. The problematic was investigated on the model test turbine wheel of the Institute of Thermomechanics. A novel signal processing method, which consists of a combination of smoothing and approximation, is presented here. This procedure enables to define the instability function over a wide range of speeds and features more than one order shorter calculation time compared to FFT. Moreover, the statistical approach was applied to test the time variability hypothesis of the studied processes, which proved to be a very effective way for evaluating the nature of these processes.
Workplace	Institute of Thermomechanics
Contact	Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823
Year of Publishing	2022
Electronic address	https://ieeexplore.ieee.org/document/8694815

Number of the records: 1