- Tytuł:
- Application of the correlation function and Fourier transformation to evaluation of technical condition demonstrated by blades of a rotor machine during the operation process
- Autorzy:
-
Lindstedt, P.
Rokicki, E.
Borowczyk, H. - Powiązania:
- https://bibliotekanauki.pl/articles/242220.pdf
- Data publikacji:
- 2009
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
diagnostics of blades
correlation function
power spectral density (PSD) function
amplitude amplification - Opis:
- The paper presents fundamentals of a new method for monitoring of technical condition demonstrated by blades of rotor machines during operation there of. The method involves the diagnostic model expressed as a qutient of the amplitude amplification for the diagnostic signaly (t) that results from the blade impact and the signal x(t) produced by the blade surrounding when the blade tip approaches the sensor, divided by the amplitude amplification of these signals when the blade tip has already passed the sensor position and moves away. The adopted diagnostic model takes account for current surrounding of the blade x(t) with no need of measurements of its parameters [12, 14]. Thus, the model is sensitive to alterations of the technical condition demonstrated by the blade but very little vulnerable to variations in the blade surroundings. Consequently, the proposed method may be able to play an important role for diagnostics of rotor blades during operation there of. The presented method applicable to monitoring of changes in technical condition of a blade is an innovative approach to carry out diagnostic of the blade in its natural environment with no need to measure signals from that environment.
- Źródło:
-
Journal of KONES; 2009, 16, 2; 263-269
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł