0

Full Content is available to subscribers

Subscribe/Learn More  >

Fractal-Inspired Multi-Frequency Structures for Piezoelectric Harvesting of Ambient Kinetic Energy

[+] Author Affiliations
D. Castagnetti

University of Modena and Reggio Emilia, Reggio Emilia, RE, Italy

Paper No. SMASIS2010-3653, pp. 725-732; 8 pages
doi:10.1115/SMASIS2010-3653
From:
  • ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1
  • Philadelphia, Pennsylvania, USA, September 28–October 1, 2010
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-4415-1 | eISBN: 978-0-7918-3886-0
  • Copyright © 2010 by ASME

abstract

The investigation of energy harvesting devices, able to convert freely-available ambient energy into electrical energy, has significantly improved. To this aim, the most suitable form of ambient energy is the kinetic one, being almost ubiquitous and easily accessible. Among the available conversion technologies, piezoelectric energy harvesting devices are one of the most promising, due to their simple configuration and high conversion efficiency. The most demanding task is to identify simple and efficient multi-frequency structures in the ambient vibration range. To this aim, this work proposes four fractal-inspired structures for piezoelectric energy harvesting. Through computational analysis, their frequency response is calculated up to 100Hz. The structures are examined both in the micro and macro scale and the effect of the iteration level of the fractal geometry is also assessed. By considering the bending strain associated to each mode shape, a quantitative criterion to assess the harvesting efficiency of the proposed structures is introduced.

Copyright © 2010 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In