Directly and parametrically excited bi-stable vibration energy harvester for broadband operation

Yu Jia, Ashwin A Seshia

Research output: Chapter in Book/Published conference outputConference publication

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 languageEnglish
Title of host publicationProceedings of 2013 Transducers & Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems
Subtitle of host publicationTRANSDUCERS & EUROSENSORS XXVII
PublisherIEEE
Pages454-457
ISBN (Electronic)978-1-4673-5983-2
DOIs
Publication statusPublished - 16 Jun 2013
EventThe 17th International Conference on Solid-State Sensors, Actuators and Microsystems: TRANSDUCERS & EUROSENSORS XXVII - Barcelona, Spain
Duration: 16 Jun 201320 Jun 2013
Conference number: 2013

Conference

ConferenceThe 17th International Conference on Solid-State Sensors, Actuators and Microsystems
Abbreviated titleTransducers
Country/TerritorySpain
CityBarcelona
Period16/06/1320/06/13

Bibliographical note

© Copyright 2013 IEEE.

Fingerprint

Dive into the research topics of 'Directly and parametrically excited bi-stable vibration energy harvester for broadband operation'. Together they form a unique fingerprint.

Cite this