Application of laser shearography to vibration mode shape analysis of composite panel during acoustic load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F18%3AN0000093" target="_blank" >RIV/00010669:_____/18:N0000093 - isvavai.cz</a>

Výsledek na webu

<a href="http://experimentalni-mechanika.cz/konference/konference/2018.html?download=1509:application-of-laser-shearography-to-vibration-mode-shape-analysis-of-composite-panel-during-acoustic-load" target="_blank" >http://experimentalni-mechanika.cz/konference/konference/2018.html?download=1509:application-of-laser-shearography-to-vibration-mode-shape-analysis-of-composite-panel-during-acoustic-load</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Application of laser shearography to vibration mode shape analysis of composite panel during acoustic load

Popis výsledku v původním jazyce

Acoustic fatigue is important topic of durability in aerospace. Progressive wave tunnel was built to carry out the tests of acoustic fatigue properties of flat composite panels. Vibrations were induced by sound wave. The mode shapes of the vibrations of panel were measured by laser shearography in a form of shearograms – fringe patterns of the out-of-plane surface displacement gradients. Finite-element modal analysis of the panel was performed. FE based displacement gradients were compared with shearograms. Excited vibration mode shapes can be qualitatively estimated on the basis of these comparisons. Few suggestions to enhance both the resolution of shearograms and FE analysis were made.

Název v anglickém jazyce

Application of laser shearography to vibration mode shape analysis of composite panel during acoustic load

Popis výsledku anglicky

Acoustic fatigue is important topic of durability in aerospace. Progressive wave tunnel was built to carry out the tests of acoustic fatigue properties of flat composite panels. Vibrations were induced by sound wave. The mode shapes of the vibrations of panel were measured by laser shearography in a form of shearograms – fringe patterns of the out-of-plane surface displacement gradients. Finite-element modal analysis of the panel was performed. FE based displacement gradients were compared with shearograms. Excited vibration mode shapes can be qualitatively estimated on the basis of these comparisons. Few suggestions to enhance both the resolution of shearograms and FE analysis were made.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20304 - Aerospace engineering

Projekt

<a href="/cs/project/TE02000032" target="_blank" >TE02000032: Výzkumné centrum pokročilých leteckých konstrukcí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Experimental Stress Analysis - 56th International Scientific Conference, EAN 2018 - Conference Proceedings

ISBN

9788027040629

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

457-463

Název nakladatele

Czech Society for Mechanics

Místo vydání

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Místo konání akce

Harrachov

Datum konání akce

5. 6. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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