The location of anomalous spikes on a working rotor: a theorical-experimental test

• Autorzy: Niola V. , Quaremba G. , Oliviero R.
• Języki publikacji: EN

Abstrakty

EN

An efficient and efficacious response to the continuous request of "high performance", in terms of qualitative standards, becomes one of the most important factors in determining the profit of a business. The aim of this paper is to check the reliability of a signal analysis method based on a Discrete Wavelet Transform (DWT). This algorithm appears useful in revealing anomalies that are added to a regular signal. Such anomalies, characterized by high frequency, small amplitude and short period, generally are filtered in a data logging or sampling. Moreover, it has been illustrated how, for each level of the DWT, the maximum value of the entropy allows the location as well as the best graphical representation of the phenomenon in study. In this paper the results obtained during the functioning of an experimental equipment will be shown.

Słowa kluczowe

EN

wavelet analysis; vibrations; discrete wavelet transform; spike analysis; entropy

PL

wibracje; entropia; analiza falkowa

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2004
• Tom: Vol. 9, no 3
• Strony: 547--556
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Niola V.

• Department of Mechanical Engineering for Energetic University of Naples "Federico II" Via Claudio 21, 80125, Napoli, ITALY

autor

Quaremba G.

• University of Naples "Federico II" Via Pansini 5, 80131, Napoli, ITALY

autor

Oliviero R.

• Departament of Mathematics for Economic, Financial and Insurance Decisions University of Rome "La Sapienza" Via del Castro Laurenziano 6, 00161, Roma, ITALY

Bibliografia

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