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

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书目详细资料
发表在:	Journal of Mechanics vol. 37 (2020), p. 1
主要作者:	Yu-Chih, Lin
其他作者:	Yu-Hsi, Huang, Chien-Ching, Ma, Chun-Kai, Chang
出版:	Oxford University Press
主题:	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
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实物特征
摘要:	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