Application of image source method in time reversal of elastic waves
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F19%3A00519751" target="_blank" >RIV/61388998:_____/19:00519751 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Application of image source method in time reversal of elastic waves
Popis výsledku v původním jazyce
The paper deals with the Image Source Method (ISM) and the minor focuses within Time Reversal (TR). The ISM is presented, i.e. approach of construction of Green functions as a sequence of wave arrivals from the source to the given point through various paths, and their usage to simulate wave propagation in solids. The ISM is applied to simulate the process of TR in rectangular plate where the minor focuses are observed, and their properties are derived. Experiment is conducted in order to verify the simulated observations. A rectangular aluminium plate is equipped with a piezoelectric transducer and a vibrometer is used to measure velocities on its surface. One-channel time reversal and cross-correlation-based method using the direct propagation are performed. Occurrence of the minor focuses within experimental results prove derived properties to be correct.
Název v anglickém jazyce
Application of image source method in time reversal of elastic waves
Popis výsledku anglicky
The paper deals with the Image Source Method (ISM) and the minor focuses within Time Reversal (TR). The ISM is presented, i.e. approach of construction of Green functions as a sequence of wave arrivals from the source to the given point through various paths, and their usage to simulate wave propagation in solids. The ISM is applied to simulate the process of TR in rectangular plate where the minor focuses are observed, and their properties are derived. Experiment is conducted in order to verify the simulated observations. A rectangular aluminium plate is equipped with a piezoelectric transducer and a vibrometer is used to measure velocities on its surface. One-channel time reversal and cross-correlation-based method using the direct propagation are performed. Occurrence of the minor focuses within experimental results prove derived properties to be correct.
Klasifikace
Druh
O - Ostatní výsledky
CEP obor
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OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GA17-22615S" target="_blank" >GA17-22615S: Využití časové reverzace ultrazvukových signálů v nedestruktivním hodnocení materiálů a konstrukcí</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2019
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů