Investigation of propulsive characteristics due to traveling waves in continuous finite media

Vijaya V.N.Sriram Malladi*, Mohammad Albakri, Patrick Musgrave, Pablo A. Tarazaga

*Corresponding author for this work

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

12 Citations (Scopus)

Abstract

The present work generates steady-state traveling waves in fin-like continuous structures with the help of Macro-Fiber Composite (MFC) piezoelectric actuators. To produce traveling waves, two MFCs simultaneously excite a clamped-free beam at a common frequency with a preset phase difference. Previous research has shown that optimal traveling waves are developed in structures when the common frequency lies halfway between two adjacent resonant frequencies and the phase difference between the two inputs is 90°. These traveling waves closely replicate the undulatory patterns that propel aquatic animals but at a low amplitude linear regime. The present work studies the generation of underwater traveling waves and investigates the range of propulsive forces generated through such mechanism. The ability of continuous structures to produce thrust using undulations is the first step towards mimicking the bio-kinematics and biomechanics of aquatic animals.

Original languageEnglish
Title of host publicationBioinspiration, Biomimetics, and Bioreplication 2017
EditorsAkhlesh Lakhtakia, Mato Knez, Raul J. Martin-Palma
PublisherSPIE
ISBN (Electronic)9781510608092
DOIs
Publication statusPublished - 2017
Externally publishedYes
EventBioinspiration, Biomimetics, and Bioreplication 2017 - Portland, United States
Duration: 26 Mar 201727 Mar 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10162
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceBioinspiration, Biomimetics, and Bioreplication 2017
Country/TerritoryUnited States
CityPortland
Period26/03/1727/03/17

Keywords

  • macro-fiber composites
  • propulsion
  • thrust
  • Traveling waves

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