Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
In the article, research results of rotor blades technical condition monitoring basing on special model phi T12T01 during operation are presented for various sampling frequencies. Method based on phi T12T01 model which is a difference of diagnostic signal y(t) phase shift resulting from blade operation and signal x(t) of its environment during blade tip approach to the sensor and its recession from the sensor. The assumed diagnostic model indirectly takes current blade environment x(t) into consideration without necessity of measurement. Three out of 28 blades placed on first level of turbine engine compressor were analyzed. Research were undertaken in teta 1 time for sampling frequencies of 500 kHz and 2 MHz. Results obtained for phi T12T01 model present the same technical condition (image) of blades. The aim of this study is to present application of diagnostic model to rotor machine blades diagnostics during operation without necessity of measuring the environment signal as well as to prove that the method is correct for both smaller and greater sampling frequencies. Importance of this is a result of a fact, that sampling frequency increase requires more expensive, specialist equipment.
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
Strony
181--189
Opis fizyczny
Bibliogr. 11 poz., rys.
Twórcy
autor
- Bialystok University of Technology Division of Production Engineering Wiejska Street 45C, 15-351 Bialystok, Poland tel.: +48 85 7469000, fax: +48 85 7469210, r.gradzki@pb.edu.pl
Bibliografia
- [1] Bendat, J. S., Piersol, A. G., Random Data: Analysis and Measurement Procedures, PWN, Warszawa 1976.
- [2] Duan, F., Fang, Z., Sun, Y., Ye, S., Real-Time Vibration Measurement Technique Based on Tip- Timing for Rotating Blades, Opto-Electronic Energineering, Vol. 30 (1), pp. 29-31, 2005.
- [3] Grądzki, R., The Parametric Method of Evaluation of Technical Condition of the Working Turbomachine Blade Depending on the Distribution Course Representing Its Environment, Journal of Polish CIMAC, Vol. 6, No. 2, pp. 91-102, 2011.
- [4] Klein, B., Non-Contact Vibration Measurements Turbochargers Turbine and Compressor Blades, Proceedings of the 1st EVI-GTI International Conference on Gas Turbine Instrumentation, Barcelona 2004.
- [5] Kotowski, A., Lindstedt, P., The Using of Signals of Impulse Acoustic Response in Test of Rotor Blades in Stationary Conditions, The International Symposium on Stability Control of Rotating Machinery ISCORMA 4, Calgary, Alberta, Canada 2007.
- [6] Lindstedt, P., Grądzki, R., Premises and the Example of Parametric Method of Evaluation of Technical Condition of the Turbomachine Blade with Elimination of Its Immeasurable Environment, Journal of KONBiN, No. 1 (17), pp. 179-194, Warsaw 2011.
- [7] Lindstedt, P., Grądzki, R., Model for Blade Diagnosis in a Working Rotor Machine Employing the Method of Virtual Elimination of Its Stochastic Environment, The Archive of Mechanical Engineering, Vol. LVIII, No. 3, pp. 305-318, Warsaw 2011.
- [8] Lindstedt, P., Rokicki, E., Borowczyk, H., Majewski, P., Application of the Correlation Function and Fourier Transformation to Evaluation of Technical Condition Demonstrated by Blades of a Rotor Machine During the Operation Process, Journal of KONES Powertrain and Transport, Vol. 16, No. 2, Warsaw 2009.
- [9] Roberts, J. P., Comparison of Tip Timing with Strain Ganges for Rotor Blade Vibration Measurement, Proceedings of Lecture Series on Tip Timing and Tip Clearance Problems in Turbomachines Von Belgium, 2007.
- [10] Szabatin, J., Podstawy teorii sygnałów, WKŁ, Warszawa 2000.
- [11] Szczepanik, R., Ocena propagacji pęknięć zmęczeniowych w wirujących łopatkach sprężarki turbinowego silnika lotniczego, Problemy Badań i Eksploatacji Techniki Lotniczej T4, Wyd. ITWL, Warszawa 1999.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ5-0047-0021