Szczegóły publikacji
Opis bibliograficzny
Analysis of dependence between stress change and resonance frequency for self-excited acoustical system / Janusz KWAŚNIEWSKI, Ireneusz DOMINIK, Krzysztof LALIK, Abdurahim Alfadel Sakeb // Diffusion and Defect Data – Solid State Data. Part B, Solid State Phenomena ; ISSN 1012-0394. — 2014 — vol. 208, s. 194–199. — Bibliogr. s. 199, Abstr. — A. A. Sakeb – afiliacja: Azzaytuna University
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 76664 |
|---|---|
| Data dodania do BaDAP | 2013-10-14 |
| Tekst źródłowy | URL |
| DOI | 10.4028/www.scientific.net/SSP.208.194 |
| Rok publikacji | 2014 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena |
Abstract
Continuous supervision of mechanical endurance is very important in the time of the advance constructions. The Self-excited Acoustical System (SAS) is a kind of a self-oscillating system, which uses the auto-resonance phenomena for measurement of construction stress changes. The advantage of this solution is the ability to apply it to a wide spectrum of materials from elastoplasts to brittle ones where the conventional techniques cannot be used. The Self-excited Acoustical System is characterized by its great sensitivity in comparison with the traditional techniques. This paper presents the results of the research carried out on a metal bar expanded by variable force. The dependence between the relative elongation of the sample and the transition time of the wave was elaborated. The delay occurring during a wave transition has a direct impact on the value of self-oscillation frequency. The influence of the coupling force between a metal sample and the wave receiver was also analysed.
