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Design and development of a parametrically excited nonlinear energy harvester

Journal Article


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Abstract


  • An energy harvester has been designed, fabricated and tested based on the nonlinear dynamical response of a parametrically excited clamped-clamped beam with a central point-mass; magnets have been used as the central point-mass which pass through a coil when parametrically excited. Experiments have been conducted for the energy harvester when the system is excited (i) harmonically near the primary resonance; (ii) harmonically near the principal parametric resonance; (iii) by means of a non-smooth periodic excitation. An electrodynamic shaker was used to parametrically excite the system and the corresponding displacement of the magnet and output voltages of the coil were measured. It has been shown that the system displays linear behaviour at the primary resonance; however, at the principal parametric resonance, the motion characteristic of the magnet substantially changed displaying a strong softening-type nonlinearity. Theoretical simulations have also been conducted in order to verify the experimental results; the comparison between theory and experiment were within very good agreement of each other. The energy harvester developed in this paper is capable of harvesting energy close to the primary resonance as well as the principal parametric resonance; the frequency-band has been broadened significantly mainly due to the nonlinear effects as well as the parametric excitation.

Authors


Publication Date


  • 2016

Citation


  • Yildirim, T., Ghayesh, M. H., Li, W. & Alici, G. (2016). Design and development of a parametrically excited nonlinear energy harvester. Energy Conversion and Management, 126 247-255.

Scopus Eid


  • 2-s2.0-84982958222

Ro Full-text Url


  • http://ro.uow.edu.au/context/eispapers/article/6937/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5908

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 247

End Page


  • 255

Volume


  • 126

Place Of Publication


  • United Kingdom

Abstract


  • An energy harvester has been designed, fabricated and tested based on the nonlinear dynamical response of a parametrically excited clamped-clamped beam with a central point-mass; magnets have been used as the central point-mass which pass through a coil when parametrically excited. Experiments have been conducted for the energy harvester when the system is excited (i) harmonically near the primary resonance; (ii) harmonically near the principal parametric resonance; (iii) by means of a non-smooth periodic excitation. An electrodynamic shaker was used to parametrically excite the system and the corresponding displacement of the magnet and output voltages of the coil were measured. It has been shown that the system displays linear behaviour at the primary resonance; however, at the principal parametric resonance, the motion characteristic of the magnet substantially changed displaying a strong softening-type nonlinearity. Theoretical simulations have also been conducted in order to verify the experimental results; the comparison between theory and experiment were within very good agreement of each other. The energy harvester developed in this paper is capable of harvesting energy close to the primary resonance as well as the principal parametric resonance; the frequency-band has been broadened significantly mainly due to the nonlinear effects as well as the parametric excitation.

Authors


Publication Date


  • 2016

Citation


  • Yildirim, T., Ghayesh, M. H., Li, W. & Alici, G. (2016). Design and development of a parametrically excited nonlinear energy harvester. Energy Conversion and Management, 126 247-255.

Scopus Eid


  • 2-s2.0-84982958222

Ro Full-text Url


  • http://ro.uow.edu.au/context/eispapers/article/6937/type/native/viewcontent

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5908

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 247

End Page


  • 255

Volume


  • 126

Place Of Publication


  • United Kingdom