Advertisement

Harvesting Energy from the Straps of a Backpack Using Piezoelectric Materials

  • Henry A. Sodano

Abstract

Over the past few decades the use of portable and wearable electronics has grown steadily. These devices are becoming increasingly more powerful; however, the gains that have been made in the device performance have resulted in the need for significantly higher power to operate the electronics. This issue has been further complicated due to the stagnate growth of battery technology over the past decade. In order to increase the life of these electronics, researchers have begun investigating methods of generating energy from ambient sources such that the life of the electronics can be prolonged. Recent developments in the field have led to the design of a number of mechanisms that can be used to generate electrical energy, from a variety of sources including thermal, solar, strain, inertia, etc. Many of these energy sources are available for use with humans, but their use must be carefully considered such that parasitic effects that could disrupt the user’s gait or endurance are avoided. These issues have arisen from previous attempts to integrate power harvesting mechanisms into a shoe such that the energy released during a heal strike could be harvested. This chapter will present research into a novel energy harvesting backpack that can generate electrical energy from the differential forces between the wearer and the pack. The goal of this system is to make the energy harvesting device transparent to the wearer such that his or her endurance and dexterity is not compromised, therefore to preserve the performance of the backpack and user, the design of the pack will be held as close to existing systems as possible.

Keywords

Power Output Electrical Energy Piezoelectric Material Energy Harvest Dielectric Elastomer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Anton, SR and Sodano, HA (2007) A Review of Power Harvesting Using Piezoelectric Materials (2003–2006). Smart Materials and Structures, 16:R1–R21.CrossRefGoogle Scholar
  2. Baker J, Roundy S and Wright P (2005) Alternative geometries for increasing power density in vibration energy scavenging for wireless sensor networks. Proceedings of the 3rd Int. Energy Conversion Engineering Conference (San Francisco, CA, August 15–18) 2005–5617:959–970.Google Scholar
  3. Kornbluh, RD, Pelrine, R, Pei, Q, Heydt, R, Stanford, S Oh, S and Eckerle, J (2002) Electroelastomers: Applications of Dielectric Elastomer Transducers for Actuation, Generation, and Smart Structures. Smart Structures and Materials 2002: Industrial and Commercial applications of Smart Structures Technologies, 4698:254–270.Google Scholar
  4. Kuo, AD (2005) Harvesting Energy by Improving the Economy of Human Walking. Science, 309:1686–1687.CrossRefGoogle Scholar
  5. Kymissis, J, Kendall, C, Paradiso, J and Gershenfeld, N (1998) Parasitic Power Harvesting in Shoes. Second IEEE International Symposium on wearable Computers, October 19–20th, Pittsburg, PA, pp. 132–139.Google Scholar
  6. Paradiso, JA and Starner T (2005) Energy Scavenging for Mobile and Wireless Electronics. Pervasive Computing, January-March, pp. 18–27.Google Scholar
  7. Rome, LC, Flynn, L, Goldman, EM and Yoo, TD (2005) Generating Electricity While Walking with Loads. Science, 309: 1725–1728.CrossRefGoogle Scholar
  8. Roundy S, Wright PK and Rabaey J (2003) A Study of Low Level Vibrations as a Power Source for Wireless Sensor Nodes. Computer Communications, 26:1131–1144.CrossRefGoogle Scholar
  9. Sodano, HA, Park, G and Inman, DJ (2004a) A Review of Power Harvesting Using Piezoelectric Materials. Shock and Vibration Digest, 36(3):197–206.CrossRefGoogle Scholar
  10. Sodano, HA, Park, G and Inman, DJ (2004b) Estimation of Electric Charge Output for Piezoelectric Energy Harvesting. Journal of Strain, 40: 49–58.CrossRefGoogle Scholar
  11. Sodano, HA, Park, G and Inman, DJ (2005a) Generation and Storage of Electricity from Power Harvesting Devices. Journal of Intelligent Material Systems and Structures 16(1): 67–75.CrossRefGoogle Scholar
  12. Sodano, HA, Park, G, and Inman, DJ (2005b) Comparison of Piezoelectric Energy Harvesting Devices for Recharging Batteries. Journal of Intelligent Material Systems and Structures, 16(10): 799–807.CrossRefGoogle Scholar
  13. Starner, T (1996) Human-Powered Wearable Computing. IBM Systems Journal, 35(3–4):618–628.CrossRefGoogle Scholar
  14. Umeda, M, Nakamura, K and Ueha, S (1997) Energy Storage Characteristics of a Piezo-Generator Using Impact Induced Vibration. Japanese Journal of Applied Physics, 36(5B): 3146–3151.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Henry A. Sodano
    • 1
  1. 1.Department of Mechanical Engineering – EngineeringMechanics Michigan Technological UniversityHoughtonUSA

Personalised recommendations