In this work, for the first time, an energy harvester based on the nonlinear dynamical response of a parametrically excited cantilever beam in contact with mechanical stoppers has been fabricated and tested; a 145% increase in the bandwidth at which energy can be effectively harvested has been observed. Experimental and theoretical investigations have been performed in order to assess the increased operating bandwidth of the energy harvester fabricated; for the experimental investigations, an electrodynamic shaker connected to a shaking table has been used to parametrically stimulate the energy harvesting device. Results showed that the parametric energy harvester without stoppers displayed a weak softening-type nonlinear response; however, with the addition of mechanical stoppers the energy harvester displayed a strong hardening-type nonlinear response which is ideal for capturing kinetic energy over larger bandwidths. The addition of mechanical stoppers on a parametrically excited cantilever beam has significant qualitative and quantitative effects on the nonlinear parametric energy harvesting; the energy harvesting bandwidth was increased in the range of 35–145% by adjusting the stoppers.
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A Parametrically Broadband Nonlinear Energy Harvester
Tanju Yildirim,
Tanju Yildirim
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
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Mergen H. Ghayesh,
Mergen H. Ghayesh
School of Mechanical Engineering,
University of Adelaide,
Adelaide, SA 5005, Australia
e-mail: mergen.ghayesh@adelaide.edu.au
University of Adelaide,
Adelaide, SA 5005, Australia
e-mail: mergen.ghayesh@adelaide.edu.au
Search for other works by this author on:
Thomas Searle,
Thomas Searle
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Search for other works by this author on:
Weihua Li,
Weihua Li
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: weihuali@uow.edu.au
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: weihuali@uow.edu.au
Search for other works by this author on:
Gursel Alici
Gursel Alici
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Search for other works by this author on:
Tanju Yildirim
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Mergen H. Ghayesh
School of Mechanical Engineering,
University of Adelaide,
Adelaide, SA 5005, Australia
e-mail: mergen.ghayesh@adelaide.edu.au
University of Adelaide,
Adelaide, SA 5005, Australia
e-mail: mergen.ghayesh@adelaide.edu.au
Thomas Searle
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Weihua Li
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: weihuali@uow.edu.au
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
e-mail: weihuali@uow.edu.au
Gursel Alici
School of Mechanical, Materials, and
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
Mechatronics Engineering,
University of Wollongong,
Wollongong, NSW 2522, Australia
1Corresponding author.
Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received February 6, 2016; final manuscript received July 20, 2016; published online October 10, 2016. Assoc. Editor: Antonio J. Bula.
J. Energy Resour. Technol. May 2017, 139(3): 032001 (8 pages)
Published Online: October 10, 2016
Article history
Received:
February 6, 2016
Revised:
July 20, 2016
Citation
Yildirim, T., Ghayesh, M. H., Searle, T., Li, W., and Alici, G. (October 10, 2016). "A Parametrically Broadband Nonlinear Energy Harvester." ASME. J. Energy Resour. Technol. May 2017; 139(3): 032001. https://doi.org/10.1115/1.4034514
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