Effect of bias conditions on the optimal energy harvesting using magnetostrictive materials

Thiago Seuaciuc-Osório, Mohammed F. Daqaq

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this effort is to investigate the effect of bias conditions on the power harvested using magnetostrictive materials. Towards that end, we first develop an analytical model to describe the dependence of the constitutive parameters on the bias conditions. We validate this model experimentally and define a range for its validity. We obtain a one-dimensional lumped-parameter model of the energy harvester and optimize it with respect to the load resistance and frequency ratio. The optimal expressions are then used to study the effect of bias conditions on the optimal values. We observe that the bias conditions significantly affect the antiresonance frequency allowing for possible real time control to maximize the energy flow from the environment to the load. Furthermore, it is observed that, in the range of bias conditions for which our model is valid, the harvested power increases with magnetic bias and decreases with the prestress.

Original languageEnglish (US)
Title of host publicationActive and Passive Smart Structures and Integrated Systems 2008
DOIs
StatePublished - 2008
EventActive and Passive Smart Structures and Integrated Systems 2008 - San Diego, CA, United States
Duration: Mar 10 2008Mar 13 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6928
ISSN (Print)0277-786X

Other

OtherActive and Passive Smart Structures and Integrated Systems 2008
CountryUnited States
CitySan Diego, CA
Period3/10/083/13/08

Keywords

  • Energy harvesting
  • Magnetic bias
  • Magnetostrictive
  • Prestress

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Seuaciuc-Osório, T., & Daqaq, M. F. (2008). Effect of bias conditions on the optimal energy harvesting using magnetostrictive materials. In Active and Passive Smart Structures and Integrated Systems 2008 [69280B] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6928). https://doi.org/10.1117/12.779624