Journal of Electroceramics

, Volume 15, Issue 1, pp 27–34 | Cite as

Piezoelectric Energy Harvesting under High Pre-Stressed Cyclic Vibrations

  • Hyeoung Woo Kim
  • Shashank Priya
  • Kenji Uchino
  • Robert E. Newnham


Cymbal transducers have been found as a promising structure for piezoelectric energy harvesting under high force (∼ 100 N) at cyclic conditions (∼ 100–200 Hz). The thicker steel cap enhances the endurance of the ceramic to sustain higher ac loads along with stress amplification. This study reports the performance of the cymbal transducer under ac force of 70 N with a pre-stress load of 67 N at 100 Hz frequency. At this frequency and force level, 52 mW power was generated from a cymbal measured across a 400 kΩ resistor. The ceramic diameter was fixed at 29 mm and various thicknesses were experimented to optimize the performance. The results showed that the PZT ceramic of 1 mm thickness provided the highest power output with 0.4 mm endcap. In order to accommodate such high dynamic pressure the transducer and cap materials were modified and it was found that the higher piezoelectric voltage constant ceramic provided the higher output power. Electrical output power as a function of applied ac stress magnitude was also computed using FEM analysis and the results were found to be functionally coherent with experiment. This study clearly demonstrated the feasibility of using piezoelectric transducers for harvesting energy from high magnitude vibration sources such as automobile.


piezoelectric energy harvesting cymbal transducer piezoelectric generator 


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Copyright information

© Springer Science + Business Media, Inc. 2005

Authors and Affiliations

  • Hyeoung Woo Kim
    • 1
  • Shashank Priya
    • 2
  • Kenji Uchino
    • 1
  • Robert E. Newnham
    • 1
  1. 1.International Center for Actuators and Transducers (ICAT)Materials Research Institute, Pennsylvania State UniversityUniversity Park
  2. 2.Materials Science and EngineeringUniversity of TexasArlington

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