Detection of Suspicious Mass on Structures by Acoustical Waves

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F12%3A00438632" target="_blank" >RIV/61388998:_____/12:00438632 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1111/j.1747-1567.2011.00707.x" target="_blank" >http://dx.doi.org/10.1111/j.1747-1567.2011.00707.x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/j.1747-1567.2011.00707.x" target="_blank" >10.1111/j.1747-1567.2011.00707.x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Detection of Suspicious Mass on Structures by Acoustical Waves

Popis výsledku v původním jazyce

Analysis of scattered Lamb waves in thin plates and shells, with an added foreign mass on their surface, was performed. Waves were generated in a range of frequencies, up to 80 kHz, by an impact loading. The responses were detected by full-field and point-wise optical methods. Pulse holointerferometry and pulse electronic speckle patterns interferometry techniques were used to visualize the interaction of the Lamb waves with the added foreign mass. Double-channel laser vibrometry was used to record thevelocity history within the proximity of the added foreign mass. It was shown that frequency analysis of the recorded waveforms was more convenient than time domain analysis when investigating the response in the thin-walled structures. The proposed method is applicable to search for suspicious masses (e.g. explosive devices) added to the structures.

Název v anglickém jazyce

Detection of Suspicious Mass on Structures by Acoustical Waves

Popis výsledku anglicky

Analysis of scattered Lamb waves in thin plates and shells, with an added foreign mass on their surface, was performed. Waves were generated in a range of frequencies, up to 80 kHz, by an impact loading. The responses were detected by full-field and point-wise optical methods. Pulse holointerferometry and pulse electronic speckle patterns interferometry techniques were used to visualize the interaction of the Lamb waves with the added foreign mass. Double-channel laser vibrometry was used to record thevelocity history within the proximity of the added foreign mass. It was shown that frequency analysis of the recorded waveforms was more convenient than time domain analysis when investigating the response in the thin-walled structures. The proposed method is applicable to search for suspicious masses (e.g. explosive devices) added to the structures.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F07%2F0588" target="_blank" >GA101/07/0588: Nedestruktivní analýza vad v tenkostěnných skořepinách pomocí akustických vln</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Experimental Techniques

ISSN

0732-8818

e-ISSN

—

Svazek periodika

36

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

14-21

Kód UT WoS článku

000304041300004

EID výsledku v databázi Scopus

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