Abstract

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.

Details

Title
Experimental and theoretical investigations on sensing and dynamic characteristics of PVDF thin film
Author
Yu-Chih, Lin 1   VIAFID ORCID Logo  ; Yu-Hsi, Huang 2 ; Chien-Ching, Ma 2 ; Chun-Kai, Chang 2 

1  Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University , Keelung, Taiwan, Republic of China 
2  Department of Mechanical Engineering, National Taiwan University , Taipei, Taiwan, Republic of China 
Pages
1-12
Publication year
2020
Publication date
2020
Publisher
Oxford University Press
ISSN
17277191
e-ISSN
18118216
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1093/jom/ufaa008
ProQuest document ID
3170853027
Copyright
© The Author(s) 2020. Published by Oxford University Press on behalf of Society of Theoretical and Applied Mechanics of the Republic of China, Taiwan. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.