Energy harvesting from base excitation of a biomimetic fish tail hosting ionic polymer metal composites

Youngsu Cha, Matteo Verotti, Horace Walcott, Sean D. Peterson, Maurizio Porfiri

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

1 Citation (Scopus)

Abstract

In this study, we seek to understand the feasibility of energy harvesting from the tail beating motion of a fish through active compliant materials. Specifically, we analyze energy harvesting from the undulations of a biomimetic fish tail hosting ionic polymer metal composites (IPMCs). The design of the biomimetic tail is specifically inspired by the morphology of the heterocer-cal tail of thresher sharks. We propose a modeling framework for the underwater vibration of the biomimetic tail, wherein the tail is assimilated to a cantilever beam with rectangular cross section. We focus on base excitation in the form of a superimposed rotation about a fixed axis and we consider the regime of moderately large-amplitude vibrations. In this context, the effect of the encompassing fluid is described through a nonlinear hydro-dynamic function. The feasibility of harvesting energy from an IPMC attached to the vibrating structure is assessed and modeled via an electromechanical framework. Experiments are performed to validate the theoretical expectations on energy harvesting from the biomimetic tail.

Original languageEnglish
Title of host publicationMechanics and Behavior of Active Materials; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting
PublisherAmerican Society of Mechanical Engineers
ISBN (Print)9780791856048
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2013 - Snowbird, UT, United States
Duration: 2013 Sep 162013 Sep 18

Publication series

NameASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2013
Volume2

Conference

ConferenceASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2013
Country/TerritoryUnited States
CitySnowbird, UT
Period13/9/1613/9/18

ASJC Scopus subject areas

  • Artificial Intelligence
  • Civil and Structural Engineering

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