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Meccanica
Erschienen in: Meccanica 11/2016

18.07.2016 | Nonlinear Dynamics, Identification and Monitoring of Structures

Experimental modal analysis of straight and curved slender beams by piezoelectric transducers

verfasst von: Gianfranco Piana, Egidio Lofrano, Alberto Carpinteri, Achille Paolone, Giuseppe Ruta

Erschienen in: Meccanica | Ausgabe 11/2016

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Abstract

We present the use of piezoelectric disk buzzers, usual in stringed musical instruments to acquire sound as a voltage signal, for experimental modal analysis. These transducers helped in extracting natural frequencies and mode shapes of an aluminium beam and a steel arch in the laboratory. The results are compared with theoretical predictions and experimental values obtained by accelerometers and a laser displacement transducer. High accuracy, small dimensions, low weight, easy usage, and low cost, make piezoelectric pickups an attractive tool for the experimental modal analysis of engineering structures.
Vorheriger Artikel Ambient vibration testing and structural identification of a cable-stayed bridge
Nächster Artikel Dynamics of masonry walls connected by a vibrating cable in a historic structure

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Metadaten
Titel
Experimental modal analysis of straight and curved slender beams by piezoelectric transducers
verfasst von
Gianfranco Piana
Egidio Lofrano
Alberto Carpinteri
Achille Paolone
Giuseppe Ruta
Publikationsdatum
18.07.2016
Verlag
Springer Netherlands
Erschienen in
Meccanica / Ausgabe 11/2016
Print ISSN: 0025-6455
Elektronische ISSN: 1572-9648
DOI
https://doi.org/10.1007/s11012-016-0487-y

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