Piezoelectric Cylindrical Design for Harvesting Energy in Multi-Directional Vibration Source

2nd International Conference on Green Energy Technology

能源学;生态环境科学

Nguyen, M.S.^1,2 ; Ng, S.H.^3 ; Kim, P.^4 ; Yoon, Y.J.^2

Energy Research Institute at NTU, Interdisciplinary Graduate School, Nanyang Technological University, Singapore

639798, Singapore^1

School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore

639798, Singapore^2

A STAR's Singapore Institute of Manufacturing Technology (SIMTech), 2 Fusionopolis Way, Singapore

138634, Singapore^3

School of Mechanical Design Engineering, College of Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do

54896, Korea, Republic of^4

关键词: Biomedical devices;    Comsol multiphysics;    Cylindrical structure;    Finite element method analysis;    Harvesting energies;    Vibration energies;    Vibration energy harvesters;    Vibration sources;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/83/1/012010/pdf
DOI  :  10.1088/1755-1315/83/1/012010

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Vibration Energy Harvester (VEH) has attracted a great attention recently both in academia and industry. One of the most challenging issues in VEH is the possibility to harvest vibration energy in multiple directions. In fact, Conventional VEH (CVEH) using cantilever beam's structure may possibly become inefficient for the application under multi-directional vibration sources. To overcome this shortcoming of CVEH, this paper proposes a novel design of piezoelectric cylindrical energy harvester (PCEH) which is using patches of piezoelectric material attached to the surface of a cylindrical structure. The Finite Element Method (FEM) analysis using COMSOL Multiphysics software package showed that PCEH has a great potential for the applicability of VEH in the multi-directional vibrating applications such as wearable devices and biomedical devices.