Piezoelectric modelling using a time domain finite element program

The disconformities in piezoelectric resonators between the electrical and mechanical experimental measurements in frequency resonance and transient modes and the prediction of the one-dimensional models that supports the characterization of them, are well known. The same can be applied to the piezo...

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Vydané v:Journal of the European Ceramic Society Ročník 27; číslo 13; s. 4153 - 4157
Hlavní autori: Gómez-Ullate Ricón, Yago, de Espinosa Freijo, Francisco Montero
Médium: Journal Article Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: Oxford Elsevier Ltd 2007
Elsevier
Predmet:
Acoustic wave devices, piezoelectric and piezoresistive devices
Applied sciences
Electrical properties
Electronics
Exact sciences and technology
Finite element modelling
Impedance
Piezoelectric properties
PZT
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Piezoelectric properties
Finite element modelling
PZT
Electrical properties
Impedance
Piezoelectric sensor
Frequency domain method
Numerical method
Algorithm
Modeling
Piezoelectric ceramics
Finite element method
Piezoelectric device
Time domain method
Piezoelectric materials
Electrical transients
Piezoelectric resonator
Electrical characteristic
ISSN:0955-2219, 1873-619X
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Shrnutí:The disconformities in piezoelectric resonators between the electrical and mechanical experimental measurements in frequency resonance and transient modes and the prediction of the one-dimensional models that supports the characterization of them, are well known. The same can be applied to the piezoelectric transducers based on piezoelectric resonators. A finite element analysis of both the resonator and the piezoelectric transducers can help the understanding of the reason of these disconformities. A finite element modelling program, PZFlex (Weidlinger Associates Inc., Los Altos, CA, USA), has been used to analyse the piezoelectric transducer devices, i.e. isotropic plates, piezoceramic disks, etc. This program uses a mixed explicit–implicit time integration algorithm, which is used to obtain the mechanical, acoustic and electrostatic field solution of the piezoceramic device. Working on the time domain gives advantages on the speed and model size against frequency domain models, thus allowing more accurate models. This work shows the mechanical and electrical behaviour in transient mode of piezoelectric resonators with standard sizes for metrological purposes and the piezoelectric transducers made with them.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2007.02.127