Cited 1 time in webofscience Cited 1 time in scopus

Effect of Thickness Ratio in Piezoelectric/Elastic Cantilever Structure on the Piezoelectric Energy Harvesting Performance

Title
Effect of Thickness Ratio in Piezoelectric/Elastic Cantilever Structure on the Piezoelectric Energy Harvesting Performance
Authors
Kim, Ga-YeonPeddigari, MaheshLim, Kyung-WonHwang, Geon-TaeYoon, Woon-HaChoi, HongsooLee, Jung WooRyu, Jungho
DGIST Authors
Choi, Hongsoo
Issue Date
2019-01
Citation
Electronic Materials Letters, 15(1), 61-69
Type
Article
Article Type
Article
Author Keywords
Energy harvestingPiezoelectric effectNeutral axisCantileverThickness ratio
Keywords
DESIGN
ISSN
1738-8090
Abstract
The energy harvesting by utilizing the piezoelectric effect for the conversion of oscillatory mechanical energy to useful electrical energy has been promising for self-powered devices. The output power can be controlled by designing the size and shape of the constituents of the harvester. This study demonstrates the effect of Ti plate (elastic layer) thickness on the resonant frequency, neutral axis position, vibration amplitude and energy harvesting performance of the cantilever structured piezoelectric energy harvester (PEH). Here, the each harvester had the same dimensions of piezoelectric layer and the same proof mass position at the end of the cantilever while it had the different elastic layer thicknesses (70-300m). The analysis revealed that the output power showed the opposite trend in vibration amplitude with varying the elastic layer thickness. Among all of the PEHs, the configuration with the largest elastic layer thickness (300m) exhibited a maximum output power of 48W at 76Hz under 0.2g acceleration, despite of the smallest vibration amplitude and the highest resonant frequency. The outcomes suggest that the thickness ratio of the piezoelectric and elastic layers should be optimized to realize the best harvesting performance. [GRAPHICS] .
URI
http://hdl.handle.net/20.500.11750/9576
DOI
10.1007/s13391-018-00103-w
Publisher
대한금속·재료학회
Related Researcher
  • Author Choi, Hongsoo Bio-Micro Robotics Lab
  • Research Interests Micro/Nano robot; Neural prostheses; MEMS; BMI; MEMS/NEMS; BioMEMS; MEMS 초음파 트랜스듀스; 인공와우
Files:
There are no files associated with this item.
Collection:
Department of Robotics EngineeringBio-Micro Robotics Lab1. Journal Articles


qrcode mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE