dc.contributor.author |
Xiong, Liuyang |
en |
dc.contributor.author |
Tang, Lihua |
en |
dc.contributor.author |
Liu, K |
en |
dc.contributor.author |
Mace, Brian |
en |
dc.date.accessioned |
2018-10-17T01:49:38Z |
en |
dc.date.issued |
2018-03-27 |
en |
dc.identifier.issn |
0022-3727 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/42438 |
en |
dc.description.abstract |
A piezoelectric vibration energy harvester (PVEH) is capable of converting waste or undesirable ambient vibration energy into useful electric energy. However, conventional PVEHs typically work in a narrow frequency range, leading to low efficiency in practical application. This work proposes a PVEH based on the principle of the nonlinear energy sink (NES) to achieve broadband energy harvesting. An alternating current circuit with a resistive load is first considered in the analysis of the dynamic properties and electric performance of the NES-based PEVH. Then, a standard rectifying direct current (DC) interface circuit is developed to evaluate the DC power from the PVEH. To gain insight into the NES mechanism involved, approximate analysis of the proposed PVEH systems under harmonic excitation is sought using the mixed multi-scale and harmonic balance method and the Newton-Raphson harmonic balance method. In addition, an equivalent circuit model (ECM) of the electromechanical system is derived and circuit simulations are conducted to explore and validate the energy harvesting and vibration absorption performance of the proposed NES-based PVEH. The response is also compared with that obtained by direct numerical integration of the equations of motion. Finally, the optimal resistance to obtain the maximum DC power is determined based on the Newton-Raphson harmonic balance method and validated by the ECM. In general, the NES-based PVEH can absorb the vibration from the primary structure and collect electric energy within a broad frequency range effectively. |
en |
dc.publisher |
IOP Publishing |
en |
dc.relation.ispartofseries |
Journal of Physics D: Applied Physics |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
Broadband piezoelectric vibration energy harvesting using a nonlinear energy sink |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1088/1361-6463/aab9e3 |
en |
pubs.begin-page |
185502 |
en |
pubs.volume |
51 |
en |
dc.rights.holder |
Copyright: The author |
en |
pubs.end-page |
185502 |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
733410 |
en |
pubs.org-id |
Engineering |
en |
pubs.org-id |
Mechanical Engineering |
en |
pubs.record-created-at-source-date |
2018-03-28 |
en |
pubs.online-publication-date |
2018-03-27 |
en |