An inverse COnvolution MEthod for wavenumber extraction (INCOME): Formulations and applications
| Autor: | M. N. Ichchou, C. Droz, Claus Claeys, Regis Boukadia, Wim Desmet, Elke Deckers |
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| Přispěvatelé: | Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), Laboratoire de Tribologie et Dynamique des Systèmes (LTDS), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Ecole Nationale d'Ingénieurs de Saint Etienne-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Acoustics and Ultrasonics
Dispersion Curves Validity domain Inverse 01 natural sciences Convolution Periodic Structures 03 medical and health sciences 0302 clinical medicine 0103 physical sciences Linear problem Applied mathematics Wavenumber Extraction (military) Wavenumber Extraction 030223 otorhinolaryngology 010301 acoustics Mathematics Two-dimensional vibroacoustics [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] Mechanical Engineering Extension (predicate logic) One-dimensional vibroacoustics [PHYS.MECA]Physics [physics]/Mechanics [physics] [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] Condensed Matter Physics Inverse Method Identification (information) Mechanics of Materials Wave Propagation Waveguides |
| Zdroj: | Journal of Sound and Vibration Journal of Sound and Vibration, Elsevier, 2021, pp.116586. ⟨10.1016/j.jsv.2021.116586⟩ |
| ISSN: | 0022-460X 1095-8568 |
| DOI: | 10.1016/j.jsv.2021.116586⟩ |
| Popis: | This paper deals with the extraction of wave features in elastic media. An inverse approach is proposed for the identification of wave dispersion characteristics (e.g. k-space) in one- and two-dimensional structures (1D, 2D). The proposed method is similar to the ESPRIT algorithm and the Prony series method and can be considered as an extension of the latter, specifically when applied to 1D problems. By using a convolution framework, the method is extended to the 2D case for which it allows the estimation of the full k-space by solving a linear problem. The method is called INverse COnvolution MEthod (INCOME). The formulation of INCOME is first detailed and mathematically justified. Both the 1D and 2D cases are detailed and explained. Then several examples are presented for assessing the validity domain of INCOME. These numerical tests clearly show the relevance of INCOME for structured inputs with periodic characteristics ispartof: Journal Of Sound And Vibration vol:520 status: Published online |
| Databáze: | OpenAIRE |
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