Utilising Nonlinear Air Damping as a Soft Mechanical Stopper for MEMS Vibration Energy Harvesting

Abstract

This paper reports on the theory and experimental verification of utilising air damping as a soft stopper mechanism for piezoelectric vibration energy harvesting to enhance shock resistance. Experiments to characterise device responsiveness under various vibration conditions were performed at different air pressure levels, and a dimensionless model was constructed with nonlinear damping terms included to model PVEH response. The relationship between the quadratic damping coefficient ζ n and air pressure is empirically established, and an optimal pressure level is calculated to trade off harvestable energy and device robustness for specific environmental conditions.

Publication DOI: https://doi.org/10.1088/1742-6596/773/1/012098
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 the Creative 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.
Publication ISSN: 1742-6596
Last Modified: 20 May 2024 07:29
Date Deposited: 13 Nov 2019 10:58
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Related URLs: https://iopscie ... 96/773/1/012098 (Publisher URL)
PURE Output Type: Conference article
Published Date: 2016-12-06
Accepted Date: 2016-01-01
Authors: Chen, Shao-Tuan
Du, Sijun
Arroyo, Emmanuelle
Jia, Yu (ORCID Profile 0000-0001-9640-1666)
Seshia, Ashwin A

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