0954406220985199.pdf (1.33 MB)
Physical realisation of a nonlinear electromagnetic energy harvester for rotational applications
journal contribution
posted on 2020-12-16, 14:47 authored by Ben Gunn, Stephanos TheodossiadesStephanos Theodossiades, Steve RothbergControl and structural health monitoring sensors are becoming increasingly common in industrial and household applications due to recent advances reducing their manufacturing costs, size and power consumption. Nevertheless, providing power for these sensors poses a key challenge to engineers, particularly in system locations where limited access renders regular maintenance infeasible due to high associated costs. In the present work, the design and physical prototype testing of a nonlinear electromagnetic vibration energy harvester is presented based on a previously reported concept of the authors. The harvester is activated by the torsional speed fluctuations of a rotating shaft. Experimental testing in a rig driven by an electric motor confirms the harvester’s properties and the modelled oscillatory behaviour. This novel rotational vibration energy harvester concept may generate over 10 mW of electrical power for a broadband speed range of approximately 400 rpm (in the examined rotational system with set fluctuating speed) for wireless sensing purposes on rotating shafts.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering ScienceVolume
235Issue
21Pages
5275-5287Publisher
SAGE PublicationsVersion
- VoR (Version of Record)
Rights holder
© The authorsPublisher statement
This is an Open Access Article. It is published by Sage under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/Acceptance date
2020-11-22Publication date
2021-04-07Copyright date
2021ISSN
0954-4062eISSN
2041-2983Publisher version
Language
- en