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Tree-Like Resonators Assembly for Broadband Energy Harvesting

[+] Author Affiliations
Madoka Kubota, Takashi Hikihara

Kyoto University, Katsura, Kyoto, Japan

Morris Flynn, Vakhtang Putkaradze

University of Alberta, Edmonton, AB, Canada

Paper No. DETC2014-34834, pp. V006T10A062; 4 pages
doi:10.1115/DETC2014-34834
From:
  • ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 10th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Buffalo, New York, USA, August 17–20, 2014
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-4639-1
  • Copyright © 2014 by ASME

abstract

This paper specifies the configuration of a harvester for absorbing energy from ambient oscillation with broadband frequencies. Two major methodologies for broadband harvesting have been developed, one is the use of a nonlinear oscillator, and the other is the use of multiple resonators. We focus on the traditional way of assembling multiple resonators but suggest some nontrivial improvements in the configuration. In order to make a variety of resonant frequencies, resonators can be connected in series, in the form of a tree-like structure. The energy absorption of the tree configuration harvester under broadband frequency excitation is tested, and additionally the placement of multiple resonators is also considered. The numerical results indicate that our proposal of the tree configuration might be useful under broadband frequency excitation.

Copyright © 2014 by ASME

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