Abstract
Despite many recent advances, the wide-spread adoption of vibrational energy harvesting has been limited by the low levels of generated output power and confined operational frequency band. Recent work by the authors on parametrically excited harvesters has demonstrated over an order of magnitude power improvement. This paper presents an investigation into the simultaneous employment of both direct and parametric resonance, as well as the incorporation of bi-stability, in an attempt to further improve the mechanical-to-electrical energy conversion efficiency by broadening the output power spectrum. Multiple direct and parametric resonant peaks from a multi-degree-of-freedom system were observed and an accumulative ~10 Hz half-power bandwidth was recorded for the first 40 Hz. Real vibration data was also employed to analysis the RMS power response effectiveness of the proposed system.
Original language | English |
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Title of host publication | Proceedings of 2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems |
Subtitle of host publication | TRANSDUCERS & EUROSENSORS XXVII |
Publisher | IEEE |
Pages | 454-457 |
ISBN (Electronic) | 978-1-4673-5983-2 |
DOIs | |
Publication status | Published - 16 Jun 2013 |
Event | The 17th International Conference on Solid-State Sensors, Actuators and Microsystems: TRANSDUCERS & EUROSENSORS XXVII - Barcelona, Spain Duration: 16 Jun 2013 → 20 Jun 2013 Conference number: 2013 |
Conference
Conference | The 17th International Conference on Solid-State Sensors, Actuators and Microsystems |
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Abbreviated title | Transducers |
Country/Territory | Spain |
City | Barcelona |
Period | 16/06/13 → 20/06/13 |