Spectral Properties of Circular Piezoelectric Unimorphs

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46709002%3A_____%2F17%3AN0000036" target="_blank" >RIV/46709002:_____/17:N0000036 - isvavai.cz</a>

Result on the web

<a href="http://acoustics.ippt.gov.pl/index.php/aa/article/view/1821" target="_blank" >http://acoustics.ippt.gov.pl/index.php/aa/article/view/1821</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/aoa-2017-00771" target="_blank" >10.1515/aoa-2017-00771</a>

Result language

angličtina

Original language name

Spectral Properties of Circular Piezoelectric Unimorphs

Original language description

The piezoelectric unimorphs are essential resonant components of many oscillating systems including electroacoustic devices. The unimorph spectral properties are namely dependent on geometric dimensions, applied materials and mounting. Preliminary dimensioning and optimization of unimorph shape are usually carried out prior to comprehensive design work mostly based on finite element method. Simple analytical model is a suitable tool for initial design phase. This paper presents a derivation of calculation model describing natural vibrations of a circular unimorph with the piezoelectric layer diameter smaller than the elastic layer diameter. The system of equations with closed-form solution is instrumental to calculation of resonant frequencies and mode shapes for unimorphs with clamped, simply supported and free circumference. The theoretical results are compared with vibration velocity measurement of clamped unimorph sample in a wide frequency range. Analytical model derived in this paper is used to assess the effect of the thickness tolerance on unimorph resonant frequencies.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/LO1213" target="_blank" >LO1213: Excellent Engineering Research</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Archives of Acoustics

ISSN

0137-5075

e-ISSN

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Volume of the periodical

42

Issue of the periodical within the volume

4

Country of publishing house

PL - POLAND

Number of pages

9

Pages from-to

743-751

UT code for WoS article

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EID of the result in the Scopus database

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