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The modeling of piezoelectrically excited waves in beams and layered substructures

โœ Scribed by Wolfgang Seemann; Alexander Ekhlakov; Evgeny Glushkov; Natalia Glushkova; Oleg Kvasha

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
553 KB
Volume
301
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

Two mathematical models for numerical simulation of traveling waves excited in an elastic waveguide by a pair of piezoceramic actuators are considered. The first model uses a simplified approach by Bernoulli-Euler beam theory and a simple actuation model. The second approach involves a boundary-value problem for an elastic layer with flexible piezoceramic strips bonded ideally to its surface. The limits of the applicability of the simplified beam model are then estimated by a comparison of the results both of the beam model and the solution of the patch-layer contact problem. Numerical results illustrate the effect of the actuators properties and position on the wave characteristics.

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