Simulation Analysis and Application for Power Insole based on Series Connection Multilayer Piezoelectric Material

• Main Authors: Chih-Sheng Yang, 楊智聖
• Other Authors: Ying-Chun Chang
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/g3p7f6

碩士 === 大同大學 === 機械工程學系(所) === 106 === There are many kinds of low frequency vibration energies occurred in our daily lifes, such as the vibrations of moving vehicles, operating equipments, and walking people. Therefore we can use piezoelectric vibration energy harvesting system to transform environmental vibration energy into electric energy . The energy harvesting systems of piezoelectric material on the electromechanical coupling coefficient by segmented electrode have been assessed in this study. The finite element software COMSOL was utilized to calculate the resonance frequencies and output powers of piezoelectric cantilever beams with various geometries and structures. The simulated result is used to design a device to harvest insole’s vibration energy and to design the experimental measurement. The simulated result shows, when we increase the length of piezoelectric cantilever beams and stress applied can reduce the resonance frequencies. If we increasing the width and thickness of piezoelectric cantilever beams, it can improve power generation. In fixed structure, multilayer structure’s power generation performance is better than single layer structure’s. In this study we mainly use the three layer piezoelectric cantilever beam during the simulation analysis.