Utilizing bi-stability to improve the performance of wake-galloping energy harvesters in unsteady flow

Ali H. Alhadidi, Mohammed Daqaq, Hamid Abderrahmane

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

Abstract

This paper investigates exploiting a bi-stable restoring force to enhance the transduction of wake-galloping energy harvesters in unsteady flows. To that end, a harvester consisting of a piezoelectric cantilever beam augmented with a square-sectioned bluff body at the free end is considered. Two repulsive magnets located at the tip of the beam are used to introduce the bi-stable restoring force. Unsteadiness is generated in a wind tunnel using staticgrid structures located in the upstream of the bluff body. Three different mesh screens with square bars are designed with different bar and mesh widths to control the Reynolds numbers and associated unsteadiness. A series of wind tunnel tests are then used to experimentally investigate the response of the harvester with and without the tip magnets. Results demonstrate that the bi-stable restoring force can be used to improve the output power of the harvester under unsteady flow conditions.

Original languageEnglish (US)
Title of host publication12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume6
ISBN (Electronic)9780791850183
DOIs
StatePublished - Jan 1 2016
EventASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2016 - Charlotte, United States
Duration: Aug 21 2016Aug 24 2016

Other

OtherASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2016
CountryUnited States
CityCharlotte
Period8/21/168/24/16

Fingerprint

Harvesters
Bistability
Unsteady Flow
Unsteady flow
Wake
Energy
Mesh
Wind tunnels
Magnets
Wind Tunnel Test
Cantilever Beam
Wind Tunnel
Reynolds number
Cantilever beams
Series
Output
Demonstrate

ASJC Scopus subject areas

  • Mechanical Engineering
  • Computer Graphics and Computer-Aided Design
  • Computer Science Applications
  • Modeling and Simulation

Cite this

Alhadidi, A. H., Daqaq, M., & Abderrahmane, H. (2016). Utilizing bi-stability to improve the performance of wake-galloping energy harvesters in unsteady flow. In 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (Vol. 6). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/DETC201659938

Utilizing bi-stability to improve the performance of wake-galloping energy harvesters in unsteady flow. / Alhadidi, Ali H.; Daqaq, Mohammed; Abderrahmane, Hamid.

12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. Vol. 6 American Society of Mechanical Engineers (ASME), 2016.

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

Alhadidi, AH, Daqaq, M & Abderrahmane, H 2016, Utilizing bi-stability to improve the performance of wake-galloping energy harvesters in unsteady flow. in 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. vol. 6, American Society of Mechanical Engineers (ASME), ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2016, Charlotte, United States, 8/21/16. https://doi.org/10.1115/DETC201659938
Alhadidi AH, Daqaq M, Abderrahmane H. Utilizing bi-stability to improve the performance of wake-galloping energy harvesters in unsteady flow. In 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. Vol. 6. American Society of Mechanical Engineers (ASME). 2016 https://doi.org/10.1115/DETC201659938
Alhadidi, Ali H. ; Daqaq, Mohammed ; Abderrahmane, Hamid. / Utilizing bi-stability to improve the performance of wake-galloping energy harvesters in unsteady flow. 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. Vol. 6 American Society of Mechanical Engineers (ASME), 2016.
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