Full Content is available to subscribers

Subscribe/Learn More  >

Power Generation From Human Motion Through Magnetic Spring System

[+] Author Affiliations
Wei Wang, Nan Zhang, Junyi Cao, Jing Lin

Xi’an Jiaotong University, Xi’an, China

Paper No. SMASIS2016-9043, pp. V002T07A004; 7 pages
  • ASME 2016 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 2: Modeling, Simulation and Control; Bio-Inspired Smart Materials and Systems; Energy Harvesting
  • Stowe, Vermont, USA, September 28–30, 2016
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-5049-7
  • Copyright © 2016 by ASME


A magnetic-spring electromagnetic energy harvester which consists of a hollow tube with two magnets fixed to the end and an attracting magnetic stack moving inside it is presented in this paper to harvest energy from human motion. The dynamic model of the electromagnetic generator is derived according to Newton’s law and Ansoft Maxwell software is used to calculate the repulsive force between middle and end magnets. Experimental results under frequency-sweep excitation and constant frequency excitation with different acceleration levels show that the generator has the potential to generate electricity for a broadband frequency range and ability to light up a LED. In the experiments considering human motion, the voltage response caused by the impact between shoes and ground are investigated. Under that condition, the influence of equivalent mass of moving magnetic stack and speeds of motion on the energy harvesting efficiency is analyzed. Results show that larger equivalent mass could obviously improve the performance of the generator and the obtained maximum output power reaches 2.11 mW.

Copyright © 2016 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In