Parametric and nonparametric diagnostic models for blades in the rotating machinery with environment elimination

• Autorzy: Grądzki R. , Golak K. , Lindstedt P.

Identyfikatory

DOI

10.5604/12314005.1213581

• Języki publikacji: EN

Abstrakty

EN

The article presents an analysis of the technical condition of the two blades with different technical conditions (for medium and low wear). It is shown that the evaluation of the blades basis only on the endoscopic research does not provide full information about the technical condition (known only the external condition of the blades). Proposed supplement endoscopic examinations of is the use of two parametric methods (the blades are tested during operation of rotating machine) based on the auto and cross power spectral density functions for the signal measured as displacement of the rotor blade tip y(t). As result of these methods is the portrait of the blades was obtained (in the form of clear colour images providing a degree of a wear), which also includes the internal condition of the blades. The additional complement to parametric methods may be nonparametric method. Auto and cross power spectral density functions (obtained from measurement of the blade tip movement) is a basis to determine the characteristics (abstract step and impulse responses) of each blade. Both parametric methods which nonparametric method clearly confirmed that the technical condition of first considered blade (no. 2) differs from the technical condition of the second blade (no. 22).

Słowa kluczowe

EN

diagnostic model; phase shift; amplitude gain; power spectral transfer function

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 2
• Strony: 137--145
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Grądzki R.

• Bialystok University of Technology Faculty of Mechanical Engineering Wiejska Street 45C, 15-351 Bialystok, Poland tel.:[phone], fax: [phone]

autor

Golak K.

• Bialystok University of Technology Faculty of Mechanical Engineering Wiejska Street 45C, 15-351 Bialystok, Poland tel.:[phone], fax: [phone]

autor

Lindstedt P.

• Air Force Institute of Technology Ksiecia Boleslawa Street 6, 01-494 Warszawa, Poland tel.: [phone]

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.