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Proceedings Paper

Design of energy harvesting systems for harnessing vibrational motion from human and vehicular motion
Author(s): Adam Wickenheiser; Ephrahim Garcia
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Paper Abstract

In much of the vibration-based energy harvesting literature, devices are modeled, designed, and tested for dissipating energy across a resistive load at a single base excitation frequency. This paper presents several practical scenarios germane to tracking, sensing, and wireless communication on humans and land vehicles. Measured vibrational data from these platforms are used to provide a time-varying, broadband input to the energy harvesting system. Optimal power considerations are given for several circuit topologies, including a passive rectifier circuit and active, switching methods. Under various size and mass constraints, the optimal design is presented for two scenarios: walking and idling a car. The frequency response functions are given alongside time histories of the power harvested using the experimental base accelerations recorded. The issues involved in designing an energy harvester for practical (i.e. timevarying, non-sinusoidal) applications are discussed.

Paper Details

Date Published: 10 April 2010
PDF: 13 pages
Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 76431B (10 April 2010); doi: 10.1117/12.847616
Show Author Affiliations
Adam Wickenheiser, George Washington Univ. (United States)
Ephrahim Garcia, Cornell Univ. (United States)


Published in SPIE Proceedings Vol. 7643:
Active and Passive Smart Structures and Integrated Systems 2010
Mehrdad N. Ghasemi-Nejhad, Editor(s)

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