Cepstrum application in diagnostics of mechanical devices

Warsaw University of Technology, Faculty of Building, Mechanics and Petrochemistry Institute of Mechanical Engineering 09-400 Płock, Jachowicza St. 2/4

Publication date: 2017-12-20

Diagnostyka 2014;15(4):21-27

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KEYWORDS

DFT

spectrum

cepstrum

ABSTRACT

The paper presents one of the methods of digital processing of diagnostic signals such as cepstral analysis and the possibility of its application in the investigations of sources of wave disturbances. In order to solve the problem, simulation and diagnostic research was performed. The simulation experiment consisted in generating different sample signals (by special software) containing known frequency-related information, which aimed at exploring the information generated and presented in the cepstrum characteristics and its reliability. The diagnostic experiment was carried out on an mechanical device – a Ford Transit minivan. The object was a basis for the determination of the possibilities of practical application of the cepstrum characteristics.

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The method of frequency determination of impulse response components based on cross-correlation vs. fast fourier transform

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eISSN:

2449-5220

System opracowano w ramach zadania:
„Podniesienie poziomu naukowego i poziomu umiędzynarodowienia czasopisma Diagnostyka oraz upowszechniania informacji o wynikach badań lub prac rozwojowych poprzez udział uznanych zagranicznych recenzentów w ocenie publikacji - zadanie finansowane w ramach umowy 745/P-DUN/2017. ze środków Ministra Nauki i Szkolnictwa Wyższego przeznaczonych na działalność upowszechniającą naukę”