Condition monitoring of roller bearings based on the estimation of Hurst exponents of vibration signals

• Autorzy: Katunin A. , Wysogląd B. , Gawron V.

Warianty tytułu

PL

Monitorowanie stanu łożysk tocznych na podstawie estymacji wykładników Hursta z sygnałów drganiowych

• Języki publikacji: EN

Abstrakty

EN

Diagnostics and evaluation of the technical state of roller bearings is one of the topical problems of in the evaluation of a machine's technical condition. Many of methods applied for the diagnostics of bearings are time-consuming and therefore could not be applied for the evaluation of a technical condition in real time. From the other hand, the development of such methods is necessary when considering the possibilities of breakdowns of whole machines caused by the defects of bearings. The presented method is based on simple statistical measure, the Hurst exponent, which is very sensitive to the changes in the signals. The method was introduced and tested on real experimental data. Due to the computational simplicity, the Hurst exponents could be applied for on-line condition monitoring of roller bearings as well.

PL

Diagnostyka i ocena stanu technicznego łożysk tocznych jest jednym z głównych problemów przy ocenie stanu technicznego maszyn. Wiele metod stosowanych do diagnostyki łożysk są czasochłonne i zatem nie mogą być zastosowane do oceny stanu technicznego w czasie rzeczywistym. Z drugiej strony opracowanie takich metod jest niezbędne, biorąc pod uwagę możliwości zniszczenia całych maszyn na skutek niesprawności łożysk. Przedstawiona metoda opiera się na prostej mierze statystycznej, wykładniku Hursta, która jest bardzo wrażliwa na zmiany w sygnałach. Metodę przedstawiono i przetestowano na rzeczywistych danych eksperymentalnych. Ze względu na prostotę obliczeniową wykładniki Hursta mogą być z powodzeniem stosowane do monitorowania stanu łożysk tocznych w trybie on-line.

Słowa kluczowe

EN

condition monitoring; roller bearings; Hurst exponent

PL

monitorowanie stanu; łożyska toczne; wykładnik Hursta

• Wydawca: Wydawnictwo Naukowe Instytutu Technologii Eksploatacji - Państwowego Instytutu Badawczego
• Czasopismo: Scientific Problems of Machines Operation and Maintenance
• Rocznik: 2012
• Tom: Vol. 47, nr 1
• Strony: 51--62
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Katunin A.

• Institute of Fundamentals of Machinery Design, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland, e-mail: [e-mail]

autor

Wysogląd B.

• Institute of Fundamentals of Machinery Design, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland, e-mail: [e-mail]

autor

Gawron V.

• Institute of Fundamentals of Machinery Design, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A, 44-100 Gliwice, Poland, e-mail: [e-mail]

Bibliografia

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