High temperature performance of a piezoelectric micro cantilever for vibration energy harvesting

Abstract

Energy harvesters withstanding high temperatures could provide potentially unlimited energy to sensor nodes placed in harsh environments, where manual maintenance is difficult and costly. Experimental results on a classical microcantilever show a 67% drop of the maximum power when the temperature is increased up to 160 °C. This decrease is investigated using a lumped-parameters model which takes into account variations in material parameters with temperature, damping increase and thermal stresses induced by mismatched thermal coefficients in a composite cantilever. The model allows a description of the maximum power evolution as a function of temperature and input acceleration. Simulation results further show that an increase in damping and the apparition of thermal stresses are contributing to the power drop at 59% and 13% respectively.

Publication DOI: https://doi.org/10.1088/1742-6596/773/1/012001
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences
Additional Information: Content from this work may be used under the terms of theCreative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
Publication ISSN: 1742-6596
Last Modified: 20 May 2024 07:29
Date Deposited: 13 Nov 2019 10:34
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Related URLs: https://iopscie ... 96/773/1/012001 (Publisher URL)
PURE Output Type: Conference article
Published Date: 2016-12-06
Accepted Date: 2016-01-01
Authors: Arroyo, Emmanuelle
Jia, Yu (ORCID Profile 0000-0001-9640-1666)
Du, Sijun
Chen, Shao-Tuan
Seshia, Ashwin A

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