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

Shao-Tuan Chen; Sijun Du; Emmanuelle Arroyo; Yu Jia; Ashwin A Seshia

doi:10.1088/1742-6596/773/1/012098

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

Shao-Tuan Chen
, Sijun Du
, Emmanuelle Arroyo
, Yu Jia
, Ashwin A Seshia

University of Cambridge
University of Chester

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

45 Downloads (Pure)

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.

Original language	English
Article number	012098
Journal	Journal of Physics: Conference Series
Volume	773
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/773/1/012098
Publication status	Published - 6 Dec 2016

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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.

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10.1088/1742-6596/773/1/012098Licence: CC BY 3.0

Utilising Nonlinear Air Damping as a Soft Mechanical
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.
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title = "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.",

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AU - Chen, Shao-Tuan

AU - Du, Sijun

AU - Arroyo, Emmanuelle

AU - Jia, Yu

AU - Seshia, Ashwin A

N1 - 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.

PY - 2016/12/6

Y1 - 2016/12/6

N2 - 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.

AB - 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.

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DO - 10.1088/1742-6596/773/1/012098

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JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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M1 - 012098

ER -

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

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