Electromechanical Analysis of Piezoelectric Harvesting Unit from Road Vibration with FEA

Chun Hua Sun; Yong Kang Zhang; Jian Hong Du; Guang Qing Shang

doi:10.4028/www.scientific.net/AMR.726-731.3144

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Electromechanical Analysis of Piezoelectric...

Electromechanical Analysis of Piezoelectric Harvesting Unit from Road Vibration with FEA

Abstract:

The purpose of this paper is to analyze the electromechanical properties of piezoelectric harvesting unit from road vibration. A new kind of piezoelectric harvesting unit, which consists of 8 pieces of PZT vibrators and sizes of 280*280*20mm, is purposed. The vibrators are connected and covered by epoxy resin. With the software of ANSYS, open circuit voltage and stress distribution of the unit under the function of vehicle tire pressure are analyzed. The results show that the maximums of open circuit voltage and stress distribution are proportional with the tire pressure. When the tire pressure is 1.0MPa, open circuit voltage and the maximum stress generated by the piezoelectric unit are 950.8V and 9.8MPa, respectively. It means that application of the piezoelectric harvesting unit can couple with the asphalt pavement very well and harvest higher electricity from road vibration on larger area.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

3144-3147

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.3144

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Online since:

August 2013

Authors:

Chun Hua Sun, Yong Kang Zhang, Jian Hong Du, Guang Qing Shang

Keywords:

Finite Element Analysis (FEA), Piezoelectric Effect, Piezoelectric Harvesting Unit, Road Vibration

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