Investigation of polyvinylidene fluoride (PVDF) films in identifying high-frequency vibration modes of flexible plates
Journal
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Journal Volume
61
Journal Issue
6
Start Page
1047
End Page
1058
ISSN
08853010
15258955
Date Issued
2014
Author(s)
Abstract
Compared with piezoelectric ceramics such as lead zirconate titanate (PZT) ceramics, the low density and high compliance of the PVDF films make them a more suitable choice in modal testing, especially for detecting high-frequency modes in flexible or inflatable structures. In this work, dynamic sensing performances of PVDF films for flexible structures in modal testing are examined, with considerations including the repeatability of the impact source, the accuracy of the sensing responses, and the influences of the nodal lines on the frequency spectra of the transient responses. Two flexible plates with different boundary conditions and thickness are considered. Experimental results, compared with FEM computations or theoretical predictions, demonstrate the excellent dynamic sensing performance of the PVDF film in modal testing applications, especially for identification of high-frequency modes on flexible structures.
Subjects
Flexible Structures
Inflatable Structures
Modal Analysis
Piezoelectric Ceramics
Semiconducting Lead Compounds
Different Boundary Condition
Frequency Spectra
High Compliances
High-frequency Mode
High-frequency Vibrations
Lead Zirconate Titanate Ceramics
Polyvinylidene Fluorides
Sensing Response
Vibrations (mechanical)
Publisher
Institute of Electrical and Electronics Engineers Inc.
Type
journal article