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https://hdl.handle.net/2440/106706
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Type: | Journal article |
Title: | A simplified transfer matrix of multi-layer piezoelectric stack |
Author: | Zhang, Y. Tu, Z. Lu, T. Al-Sarawi, S. |
Citation: | Journal of Intelligent Material Systems and Structures, 2017; 28(5):595-603 |
Publisher: | SAGE Publications |
Issue Date: | 2017 |
ISSN: | 1045-389X 1530-8138 |
Statement of Responsibility: | Yangkun Zhang, Zhen Tu, Tien-Fu Lu and Said Al-Sarawi |
Abstract: | Multi-layer piezoelectric stack is a transducer stacked by numerous thin piezo layers which can convert an electrical energy into a mechanical energy in transmitter mode (actuators or vibrators) and can also convert a mechanical energy into an electrical energy in receiver mode (sensors and energy harvesters). Modelling vibrations of multi-layer piezoelectric stack plays a key role in design, fabrication and optimization of many multi-layer piezoelectric stack–based applications. In this article, a simplified transfer matrix of multi-layer piezoelectric stack, which considers the whole multi-layer piezoelectric stack to be an equivalent homogenous bulk, is proposed and formulated to model multi-layer piezoelectric stack–based vibration. When compared with a direct analytical method, the proposed transfer matrix greatly facilitates derivation of analytical solutions or direct calculations when multi-layer piezoelectric stack is stacked with other structures. Compared with using the transfer matrix proposed in the literature, which is subjected to individual piezo layer in multi-layer piezoelectric stack, the proposed simplified transfer matrix contributes to a much simpler form of analytical solution and greatly reduces the computational effort. Case studies have been carried out, which validate the effectiveness of the proposed simplified transfer matrix of multi-layer piezoelectric stack in both transmitter mode and receiver mode. |
Keywords: | Multi-layer; piezoelectric; stack; transfer matrix; vibrations |
Rights: | © The Author(s) 2016. |
DOI: | 10.1177/1045389X16651153 |
Published version: | http://dx.doi.org/10.1177/1045389x16651153 |
Appears in Collections: | Aurora harvest 8 Mechanical Engineering publications |
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