Szczegóły publikacji
Opis bibliograficzny
Non-linear vibro-acoustic wave modulations – analysis of different types of low-frequency excitation / A. KLEPKA, W. J. STASZEWSKI, K. DZIEDZIECH, F. Aymerich // Key Engineering Materials ; ISSN 1013-9826. — 2013 — vols. 569–570, s. 924–931. — Bibliogr. s. 930–931, Abstr. — DAMAS 2013 : Damage assessment of structures X : 10th international conference on Damage Assessment of Structures : July 8–10, 2013, Dublin, Ireland : selected peer reviewed papers, Pt. 2 / ed. Biswajit Basu
Autorzy (4)
- AGHKlepka Andrzej
- AGHStaszewski Wiesław Jerzy
- AGHDziedziech Kajetan
- Aymerich Francesco
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 75258 |
|---|---|
| Data dodania do BaDAP | 2013-08-08 |
| DOI | 10.4028/www.scientific.net/KEM.569-570.924 |
| Rok publikacji | 2013 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Key Engineering Materials |
Abstract
Signal processing method based on wavelet transform used in non-linear acoustic test is presented in the paper. The method is applied for sidebands identification in response signal acquired during vibro-acoustic modulation test of impacted carbon fiber reinforced plate (CFRP). The plate was impacted with known energy using drop-weight testing machine. The modulation effect in investigated specimen results from the interaction of low and high frequency excitation with damage. The paper investigates different than mono-harmonic low-frequency. excitation usually used in non-linear acoustics tests. Application of aperiodic low-frequency excitation signal allows to omit the modal test, where natural frequency of the structure are estimated. However, this requires the use of dedicated signal processing methods.
