A dynamic model for cantilever type electretbased energy harvester

Zhaoshu Yang, Lihua Tang, Kai Tao, Kean Aw

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Most of the theoretical studies related to electret-based vibration energy harvester (eVEH) focuses on its electrical model, while the dynamic model is usually lumped as a simple mass-spring oscillator. This method could be inaccurate for a cantilever type eVEH, as the deformation of the counter electrode is not negligible. In this work, we endeavor to propose a dynamic model of a cantilever type eVEH. The electromechanical governing equations are derived from the Hamilton's principle and discretized using finite element method. In order to make it more computationally efficient, this model was further reduced by modal method.

Original languageEnglish
Title of host publicationProceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
PublisherCanadian Acoustical Association
ISBN (Electronic)9781999181000
StatePublished - 2019
Event26th International Congress on Sound and Vibration, ICSV 2019 - Montreal, Canada
Duration: 7 Jul 201911 Jul 2019

Publication series

NameProceedings of the 26th International Congress on Sound and Vibration, ICSV 2019

Conference

Conference26th International Congress on Sound and Vibration, ICSV 2019
Country/TerritoryCanada
CityMontreal
Period7/07/1911/07/19

Keywords

  • Cantilever
  • Electret
  • Finite element method
  • Vibration energy harvester

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