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Experimental and theoretical investigations on sensing and dynamic characteristics of PVDF thin film

Guardado en:
Publicado en:Journal of Mechanics vol. 37 (2020), p. 1
Autor principal: Yu-Chih, Lin
Otros Autores: Yu-Hsi, Huang, Chien-Ching, Ma, Chun-Kai, Chang
Publicado:
Oxford University Press
Materias:
Finite element method
Signal analysis
Thin films
Vibration
Piezoelectricity
Dynamic characteristics
Polyvinylidene fluorides
Speckle patterns
Diffraction patterns
Laser doppler vibrometers
Electronic speckle pattern interferometry
Steady state
Aluminum
Measurement techniques
Skin
Fluorides
Mechanics
Composite materials
Strain gauges
Interferometry
Fourier transforms
Experiments
Sensors
Finite element analysis
Acoustics
Acceso en línea:Citation/Abstract
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Resumen:This research investigates both the steady-state and transient dynamic characteristics of polyvinylidene fluoride (PVDF), which is one of the most commonly used piezoelectric polymers. In steady-state vibration, the visible resonant mode fringe patterns are obtained using the amplitude-fluctuation electronic speckle pattern interferometry experiment, and the point-wise displacement data are measured by laser Doppler vibrometer–dynamic signal analysis. Finite element analysis is also performed, and the numerical results are compared with the experimental ones for the steady-state vibration. In a transient dynamic experiment, the history of dynamic impact generated by a steel ball is measured by the PVDF, and the experimental results are compared with the theoretical results obtained by the Hertz contact law. The comprehensive information about steady-state and transient dynamic properties of PVDF membranes obtained in this study is expected to contribute to the further development of the PVDF piezoelectric element.
ISSN:1727-7191
1811-8216
1680-0893
DOI:10.1093/jom/ufaa008
Fuente:ABI/INFORM Global