Steady-state dynamics of a bistable energy harvester with linear appendage oscillator

R. L. Harne, M. Thota, K. W. Wang

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

1 Scopus citations

Abstract

Recent interest in bistable devices for vibration energy harvesting has given evidence of their beneficial performance in realistic stochastic or low frequency excitation environments since the snap through effect (high displacement switching from one stable state to another) is a non-resonant dynamic. It has yet to be rigorously determined how adding additional degrees-of-freedom may influence bistable energy harvesting response since the nonlinearities do not allow for a direct analogy from multi-body linear examples. We analytically and experimentally assess the potential for improving energy harvesting dynamics by adding a conventional linear oscillator to a bistable energy harvester. The traditional coupling parameters of mass ratio and tuning ratio are evaluated as means to tune the harvester's response. Advantageous design regimes are classified and explanations for the rich dynamics are provided. Experiments confirm the benefit of appending a linear oscillator to the bistable system as a simple means by which to enhance harvesting performance.

Original languageEnglish (US)
Title of host publicationActive and Passive Smart Structures and Integrated Systems 2013
DOIs
StatePublished - 2013
EventActive and Passive Smart Structures and Integrated Systems 2013 - San Diego, CA, United States
Duration: Mar 10 2013Mar 14 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8688
ISSN (Print)0277-786X

Other

OtherActive and Passive Smart Structures and Integrated Systems 2013
CountryUnited States
CitySan Diego, CA
Period3/10/133/14/13

All Science Journal Classification (ASJC) codes

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

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