Effect of Traffic Flow on Characteristics of Piezoelectric Harvesting Unit

Chun Hua Sun; Guang Qing Shang

doi:10.4028/www.scientific.net/AMM.672-674.902

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 672-674Effect of Traffic Flow on Characteristics of...

Effect of Traffic Flow on Characteristics of Piezoelectric Harvesting Unit

Abstract:

To protect dwindling coal and oil resources and open up a new way of renewable green energy, the technology of piezoelectric harvesting from pavement is proposed. Effect of traffic flow, including contact pressure and speed of a vehicle, on characteristics of a piezoelectric harvesting unit is discussed with the finite element method. Results show that the harvested electric power is approximately linear with the contact pressure and a vehicle’s speed. The contact pressure takes more effect on the harvested electric power and stress on pavement than the vehicle’s speed. A PHU of 280*280*20mm can harvest about 10mJ electric power when the contact pressure is 0.85MPa. That shows that application of the piezoelectric harvesting unit has very nice optimistic prospects.

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Periodical:

Applied Mechanics and Materials (Volumes 672-674)

Pages:

902-905

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.672-674.902

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Online since:

October 2014

Authors:

Chun Hua Sun*, Guang Qing Shang

Keywords:

Pavement Vibration, Piezoelectric Harvesting Unit, PZT

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* - Corresponding Author

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