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ONCHIS, D. RAJMIC, P.
Original Title
Generalized Goertzel algorithm for computing the natural frequencies of cantilever beams
Type
journal article in Web of Science
Language
English
Original Abstract
The paper proposes a fast algorithm for accurate estimation of frequency within a specified, narrow range. The algorithm is useful for the identification of the natural frequencies of cantilever beams for damage detections purposes. The procedure is based on the generalized Goertzel algorithm combined with apriori knowledge of the natural frequencies intervals for cantilever beams given their physical characteristics. We compare our approach with the Chirp Z-transform and several frequency or time-frequency methods to illustrate its advantages for online damage detection.
Keywords
Natural frequencies, Generalized Goertzel algorithm, FFT, Time-frequency, Spectrum, Chirp Z-transform, CZT, Damage detection
Authors
ONCHIS, D.; RAJMIC, P.
RIV year
2014
Released
1. 3. 2014
Publisher
Elsevier
ISBN
0165-1684
Periodical
SIGNAL PROCESSING
Year of study
Number
96
State
Kingdom of the Netherlands
Pages from
45
Pages to
50
Pages count
6
URL
http://www.sciencedirect.com/science/article/pii/S0165168413003058
BibTex
@article{BUT101202, author="Darian {Onchis} and Pavel {Rajmic}", title="Generalized Goertzel algorithm for computing the natural frequencies of cantilever beams", journal="SIGNAL PROCESSING", year="2014", volume="2014", number="96", pages="45--50", doi="10.1016/j.sigpro.2013.07.026", issn="0165-1684", url="http://www.sciencedirect.com/science/article/pii/S0165168413003058" }