Pregled bibliografske jedinice broj: 775896
Strategy for Identification of Damping Ratio using Morlet Wave Damping Identification Method
Strategy for Identification of Damping Ratio using Morlet Wave Damping Identification Method // Proceedings of ICoEV 2015 International Conference on Engineering Vibration / Boltežar, Miha ; Slavič, Janko ; Wiercigroch, Marian (ur.).
Ljubljana: National and University Library of Slovenia, 2015. str. 359-372 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 775896 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Strategy for Identification of Damping Ratio using Morlet Wave Damping Identification Method
Autori
Tomac, Ivan ; Lozina Željan ; Sedlar Damir
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of ICoEV 2015 International Conference on Engineering Vibration
/ Boltežar, Miha ; Slavič, Janko ; Wiercigroch, Marian - Ljubljana : National and University Library of Slovenia, 2015, 359-372
ISBN
978-961-6536-97-4
Skup
International Conference on Engineering Vibration 2015
Mjesto i datum
Ljubljana, Slovenija, 07.09.2015. - 10.09.2015
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Modalna analiza; Koeficijent relativnog prigušenja; Identifikacija; Kontinuirana valna transformacija; Gaborova valna funkcija
(Modal Analysis; Damping ratio; Identification; Continious wavelet transform; Gabor wavelet)
Sažetak
A strategy for the identification of damping ratios in structures with a Morlet Wave Damping Identification method is proposed. Generally, this method is based on extracting damping ratios for a given natural frequency from only two wavelet coefficients. The considerable sensitivity of the identified values is noticed even for a small change of the parameters of the wavelet functions. To raise a certainty in the identified values we propose identification of damping ratio for the whole range of feasible wavelet functions parameters. Decision criteria are based on lowest fluctuation of the identified damping ratio. This strategy resulted in the raising the level of automation and reducing the operator interaction. Method is tested on the simulated responses and the experimentally measured responses. In both cases, the results of the damping ratios identification are compared with numerous independent traditional methods. Traditional identification methods applied in comparative analysis were available as in house code or commercial software.
Izvorni jezik
Engleski
Znanstvena područja
Brodogradnja, Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika
POVEZANOST RADA
Projekti:
023-0231744-1747 - INVERZNI POSTUPCI I NAPREDNI ALGORITMI U DINAMICI KONSTRUKCIJA I STROJEVA (Lozina, Željan, MZOS ) ( CroRIS)
023-0231744-3113 - Inteligentni i evolucijski algoritmi optimizacije materijala i konstrukcija (Vučina, Damir, MZOS ) ( CroRIS)
Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split
