Amplitude-frequency response of an aluminum cantilever beam determined by piezoelectric transducers
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F15%3A43925325" target="_blank" >RIV/49777513:23520/15:43925325 - 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
Amplitude-frequency response of an aluminum cantilever beam determined by piezoelectric transducers
Popis výsledku v původním jazyce
This work is focused on creation of appropriate finite element model of aluminum cantilever beam with applied pair of piezoelectric patch transducers. Thanks to reversible behavior of piezoelectric effect each patch transducer can represent either actuator or sensor. For precise prediction of amplitude values in numerical simulations each transducer is calibrated before attaching to the beam by strain gauges. From these experiments piezoelectric properties of each piezoelectric patch are obtained. The cantilever beam is actuated by a voltage signal applied to one of the patches. The signal is a linear chirp (sine with swept frequency) with sufficient range to affect selected natural frequencies. The time response of the beam from the piezoelectric sensor and alternatively by a laser position sensor is transformed by STFT algorithm to obtain the characteristics in time-frequency domain (spectrogram). The finite element model of the cantilever beam with piezoelectric patches was created
Název v anglickém jazyce
Amplitude-frequency response of an aluminum cantilever beam determined by piezoelectric transducers
Popis výsledku anglicky
This work is focused on creation of appropriate finite element model of aluminum cantilever beam with applied pair of piezoelectric patch transducers. Thanks to reversible behavior of piezoelectric effect each patch transducer can represent either actuator or sensor. For precise prediction of amplitude values in numerical simulations each transducer is calibrated before attaching to the beam by strain gauges. From these experiments piezoelectric properties of each piezoelectric patch are obtained. The cantilever beam is actuated by a voltage signal applied to one of the patches. The signal is a linear chirp (sine with swept frequency) with sufficient range to affect selected natural frequencies. The time response of the beam from the piezoelectric sensor and alternatively by a laser position sensor is transformed by STFT algorithm to obtain the characteristics in time-frequency domain (spectrogram). The finite element model of the cantilever beam with piezoelectric patches was created
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
JJ - Ostatní materiály
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GAP101%2F11%2F0288" target="_blank" >GAP101/11/0288: Návrh inteligentních kompozitních struktur</a><br>
Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Materiali in Tehnologije
ISSN
1580-2949
e-ISSN
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Svazek periodika
49
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
SI - Slovinská republika
Počet stran výsledku
4
Strana od-do
95-98
Kód UT WoS článku
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EID výsledku v databázi Scopus
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