Hybrid experimental/computational approach to Time Reversal source localization in thin plates using image source method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F24%3A00583278" target="_blank" >RIV/61388998:_____/24:00583278 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/24:00382268

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0003682X24000240" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0003682X24000240</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apacoust.2024.109873" target="_blank" >10.1016/j.apacoust.2024.109873</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hybrid experimental/computational approach to Time Reversal source localization in thin plates using image source method

Popis výsledku v původním jazyce

Standard approaches to source localization usually rely on trilateration, using signals detected at multiple receiving points, with further research focused on improving localization robustness and reducing the number of sensors required. Time Reversal (TR) is a valid alternative, however it is often difficult to define a reliable hybrid (computational/experimental) approach, particularly in the case of plates where dispersive properties of the propagating waves play a crucial role to obtain focusing. In this paper, we present an analytical method that describes wave propagation in thin plates, accounting for edge reflections and dispersive properties, and validate it by comparison to experimental data. The Image Source Method (ISM), employed and extended in this study, provides an analytical means of Green’s function computation through multiple edge-reflected propagation paths and proves to be reliable and fast to study propagation of Lamb waves in thin plates. A one-channel hybrid TR approach based on ISM is also proposed, utilizing experimental signals transferred to the model for backpropagation computation. In particular, the determination of the optimal signal duration to be time-reversed is discussed.

Název v anglickém jazyce

Hybrid experimental/computational approach to Time Reversal source localization in thin plates using image source method

Popis výsledku anglicky

Standard approaches to source localization usually rely on trilateration, using signals detected at multiple receiving points, with further research focused on improving localization robustness and reducing the number of sensors required. Time Reversal (TR) is a valid alternative, however it is often difficult to define a reliable hybrid (computational/experimental) approach, particularly in the case of plates where dispersive properties of the propagating waves play a crucial role to obtain focusing. In this paper, we present an analytical method that describes wave propagation in thin plates, accounting for edge reflections and dispersive properties, and validate it by comparison to experimental data. The Image Source Method (ISM), employed and extended in this study, provides an analytical means of Green’s function computation through multiple edge-reflected propagation paths and proves to be reliable and fast to study propagation of Lamb waves in thin plates. A one-channel hybrid TR approach based on ISM is also proposed, utilizing experimental signals transferred to the model for backpropagation computation. In particular, the determination of the optimal signal duration to be time-reversed is discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20306 - Audio engineering, reliability analysis

Projekt

<a href="/cs/project/TM04000065" target="_blank" >TM04000065: Slitiny s vysokou entropií připravené metodami aditivní výroby pro využití v jaderné energetice</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Acoustics

ISSN

0003-682X

e-ISSN

1872-910X

Svazek periodika

218

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

109873

Kód UT WoS článku

001166893500001

EID výsledku v databázi Scopus

2-s2.0-85183129023