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

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

dc.contributor.author	Chen, Shao-Tuan	*
dc.contributor.author	Du, Sijun	*
dc.contributor.author	Arroyo, Emmanuelle	*
dc.contributor.author	Jia, Yu	*
dc.contributor.author	Seshia, Ashwin A.	*
dc.date.accessioned	2017-02-28T14:49:58Z
dc.date.available	2017-02-28T14:49:58Z
dc.date.issued	2016-12-06
dc.identifier.citation	Chen, S., Du, S., Arroyo, E., Jia, Y. & Seshia, A. (2016). Utilising nonlinear air damping as a soft mechanical stopper for MEMS vibration energy harvesting. Journal of Physics Conference Series, 773(1).	en
dc.identifier.issn	1742-6588
dc.identifier.doi	10.1088/1742-6596/773/1/012098
dc.identifier.uri	http://hdl.handle.net/10034/620414
dc.description	This document is the Accepted Manuscript version of a published work that appeared in final form in Journal of Physics: Conference Series. To access the final edited and published work see http://dx.doi.org/10.1088/1742-6596/773/1/012098	en
dc.description.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.
dc.language.iso	en	en
dc.publisher	IOP Publishing	en
dc.relation.url	http://iopscience.iop.org/article/10.1088/1742-6596/773/1/012098	en
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	en
dc.subject	Energy harvesting	en
dc.title	Utilising Nonlinear Air Damping as a Soft Mechanical Stopper for MEMS Vibration Energy Harvesting	en
dc.type	Article	en
dc.identifier.eissn	1742-6596
dc.contributor.department	University of Cambridge; University of Chester	en
dc.identifier.journal	Journal of Physics: Conference Series
dc.date.accepted	2016-09-01
or.grant.openaccess	Yes	en
rioxxterms.funder	unfunded	en
rioxxterms.identifier.project	unfunded	en
rioxxterms.version	AM	en
rioxxterms.licenseref.startdate	2016-12-06
html.description.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.