Dynamic analysis of piezoelectric actuator-driven circular rings using an impedance approach

TR Number
Date
1994-09-01
Journal Title
Journal ISSN
Volume Title
Publisher
Acoustical Society of America
Abstract

This paper presents a dynamic model for the response of a circular ring excited by piezoelectric transducer (PZT) actuators bonded on the ring surface. The dynamic response is determined based on the dynamic interaction between the PZT actuators and the structure using an impedance approach. Compared with the conventional static approach, in which a statically determined ''equivalent force'' of the actuator is used as the forcing function in the dynamic analysis, the impedance approach cannot only capture the physics of the actuator/structure interaction, but also accurately predict the structural dynamic response. Experiments have also been conducted to verify the theoretical model. The predicted dynamic response using the impedance approach agrees very well with the experimental results. Comparison of the conventional static approach and the impedance model has also been presented.

Description
Keywords
Piezoelectric transducers, Experiment design, Surface dynamics
Citation
Rossi, A., Liang, C., & Rogers, C. A. (1994). Dynamic analysis of piezoelectric actuator-driven circular rings using an impedance approach. Journal of the Acoustical Society of America, 96(3), 1592-1597. doi: 10.1121/1.410237