Abstract
The conventional concepts of a loss factor and complex-valued elastic moduli are used to study wave attenuation in a visco-elastic layer. The hierarchy of reduced-order models is employed to assess attenuation levels in various situations. For the forcing problem, the attenuation levels are found for alternative excitation cases. The differences between two regimes, the low frequency one, when a waveguide supports only one propagating wave, and the high frequency one, when several waves are supported, are demonstrated and explained.
| Originalsprog | Engelsk |
|---|---|
| Titel | Proceedings of the 23rd International Congress on Sound and Vibration : From Ancient to Modern Acoustic, 2016 |
| Redaktører | K. Vogiatzis, G. Kouroussis, M. Crocker, M. Pawelczyk |
| Antal sider | 8 |
| Forlag | International Institute of Acoustics and Vibrations |
| Publikationsdato | 2016 |
| ISBN (Elektronisk) | 978-960-99226-2-3 |
| Status | Udgivet - 2016 |
| Begivenhed | 23rd International Congress on Sound and Vibration, ICSV 2016 - Athens, Grækenland Varighed: 10 jul. 2016 → 14 jul. 2016 |
Konference
| Konference | 23rd International Congress on Sound and Vibration, ICSV 2016 |
|---|---|
| Land/Område | Grækenland |
| By | Athens |
| Periode | 10/07/2016 → 14/07/2016 |
| Sponsor | Dynamic Acoustics S.A., et al., Hellenic Association, Pemard, T and S Technologies Group, Traffic Transportation and Environment Consultants SA (TT and E S.A.) |
Emneord
- wave propagation
- damping
- reduced-order model
- loss factor