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A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure

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Development of Piezoelectric Energy Harvester System through Optimizing Multiple Structural Parameters.

Hailu Yang^1,2, Ya Wei³, Weidong Zhang¹

¹National Centre for Materials Service Safety, University of Science & Technology Beijing, Beijing 100083, China.

Sensors (Basel, Switzerland)

|April 30, 2021

Summary

This study optimizes piezoelectric energy harvesters (PEHs) for smart roads. Findings guide structural improvements for efficient road power generation and sensing applications.

Keywords:

energy harvesting pavement power generation piezoelectric ceramic power generation stacked structure

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Area of Science:

Engineering
Materials Science
Sustainable Energy

Background:

Smart roads require efficient energy harvesting solutions.
Stack piezoelectric transducers are key for converting mechanical road vibrations into electrical energy.
Optimizing piezoelectric energy harvester (PEH) design is crucial for enhancing road power generation.

Purpose of the Study:

To investigate factors influencing the power generation performance of stack piezoelectric energy harvesters.
To provide guidance for the structural optimization of PEHs for smart road applications.

Main Methods:

Theoretical analysis and experimental verification of PEH designs.
Utilizing a laboratory accelerated pavement testing system.
Investigating the impact of connection mode, layer count, aspect ratio, and unit number on PEH performance.

Main Results:

Identified key parameters affecting PEH power generation efficiency.
Demonstrated the performance of two distinct PEH designs under simulated road conditions.
Provided data for optimizing PEH structures for energy harvesting and sensing.

Conclusions:

Structural optimization significantly enhances PEH performance for road power generation.
The study offers practical insights for designing efficient PEHs for smart roads.
Findings support the development of integrated sensing and energy harvesting systems in pavements.