Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Design of Optimal Kinetic Energy Harvester Using Double Pendulum

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  • Lee, Chibum (Department of Mechanical System Design Engineering, Seoul National University of Science & Technology) ;
  • Park, Hee Jae (Department of Mechanical System Design Engineering, Seoul National University of Science & Technology)
  • Received : 2015.11.02
  • Accepted : 2015.11.18
  • Published : 2015.12.15
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Abstract

Owing to miniaturization and low-power electronics, mobile, implanted, and wearable devices have become the main trends of electronics during the past decade. There has been much research regarding energy harvesting to achieve battery-free or self-powered devices. The optimal design problems of a double-pendulum kinetic-energy harvester from human motion are studied in this paper. For the given form factor, the weight of the harvester, and the known human excitation, the optimal design problem is solved using a dynamic non-linear double-pendulum model and an electric generator. The average electrical power was selected as the performance index for the given time period. A double-pendulum harvester was proven to be more efficient than a single-pendulum harvester when the appropriate parameters were used.

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References

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