

Author: Brissaud M. Eyraud L. Kleimann H.
Publisher: S. Hirzel Verlag
ISSN: 1610-1928
Source: Acta Acustica united with Acustica, Vol.64, Iss.1, 1987-07, pp. : 14-25
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Abstract
The solution of the general expressions for the propagation of vibrations in piezoelectric materials is only possible using certain simplifying assumptions. In contrast the numerical methods of solving partial differential equations are perfectly adapted to this type of problem. They are an effective and indispensible tool for determining the stress fields and deformations of vibrating elements to be used for the manufacture of transducers for imaging or echography.Since existing finite element codes do not take account of the piezoelectric effect, we have written our own finite element programme, but limiting it to the case of materials with simple geometries.We describe the general structure of our algorithm and then present the results obtained from the simulation.
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