Affiliation:
1. School of Mechanical and Vehicle Engineering, Changchun University, Changchun, 130022, China
Abstract
In order to find the programs that can be generated at low frequency, a scheme of using (polyvinylidene fluoride) piezoelectric film to collect the energy of human foot movement is proposed, and related theoretical analysis and experimental studies are conducted. The solution is capable
of energy harvesting during low-frequency walking to provide power for wearable microelectronic devices. First, a system dynamics model was built to analyze the kinematics of the foot, and then COMSOL Multiphysics simulation software was used to simulate the vibration mode, stress–strain,
and output voltage of the piezoelectric film. Finally, the experimental platform was built for experimental testing. The experimental results show that when the PVDF piezoelectric film on the back of the human foot is deformed, the output power will vary in a certain range. When the thickness
of the piezoelectric film is 122 μm and the bending amplitude is 60°, the maximum output voltage in the experiment is 25.2 V, the output current is 0.0783 mA and the output power is 1.981 mW. The experimental results verify the feasibility of the scheme design and provide a new
solution for powering electronic components.
Publisher
American Scientific Publishers
Subject
Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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