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Active performance optimization of cantilever piezoelectric energy harvester

Anbarani, M. T ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1115/ESDA2014-20181
  3. Abstract:
  4. A Piezoelectric Energy Harvester (PEH) of cantilever beam type is developed to optimize the generated power by means of active control of moment of inertia of the beam. Distributed parameter equations of vibration of the beam are developed. Then the electromechanical response of the piezoelectric actuator is discussed. The harvester configuration is then described and it is shown that such a configuration can avoid the drastic power drop in presence of uncertainty around resonance frequency by applying voltage to the piezoelectric actuator. Finally the proposed harvester output power working frequency span is compared to conventional methods to show that the significant performance optimization in proposed method is achieved
  5. Keywords:
  6. Moment of inertia ; Energy harvesting ; Nanocantilevers ; Piezoelectricity ; Active control ; Distributed parameter ; Electromechanical response ; Performance optimizations ; Piezoelectric energy harvesters ; Piezoelectric energy harvesting ; Resonance frequencies ; Piezoelectric actuators
  7. Source: ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2014 ; Vol. 2 , 2014 ; ISBN: 9780791845844
  8. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1920030