Abstract
In recent years, piezoelectric-ceramic (PZT) materials have found widespread use in smart structures. This paper presents the theoretical development and the experimental verification of a new simplified approach to model the multiphysics dynamic interaction between the PZT patches and their host structures in the smart systems. The mechanical coupling between the patch and the structure is modeled in two dimensions in order to accurately consider the planar vibrations. At the same time, the derived equations are simple enough to be directly utilized for extracting the mechanical impedance of an 'unknown' structure from the experimental signatures of a PZT patch surface bonded to it. This is an improvement over the existing models whose complexity prohibits direct application in similar practical scenarios. The presented formulations are experimentally verified by means of test on a smart system comprising an aluminum block instrumented with a PZT patch.
| Original language | English |
|---|---|
| Title of host publication | Computational Fluid and Solid Mechanics 2003 |
| Publisher | Elsevier Inc. |
| Pages | 107-110 |
| Number of pages | 4 |
| ISBN (Electronic) | 9780080529479 |
| ISBN (Print) | 9780080440460 |
| DOIs | |
| Publication status | Published - Jun 2 2003 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2003 Elsevier Science Ltd. All rights reserved.
ASJC Scopus Subject Areas
- General Engineering
Keywords
- Effective mechanical impedance
- Electro-mechanical admittance
- Electro-mechanical impedance (EMI) technique
- Non-destructive evaluation (NDE)
- Piezoelectric-ceramic (PZT) materials
- Vibrations