Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/88618
Title: Experimental investigation of fatigue in a cantilever energy harvesting beam
Authors: Avvari, Panduranga Vittal
Yang, Yaowen
Liu, Peiwen
Soh, Chee Kiong
Keywords: Fatigue
DRNTU::Engineering::Civil engineering
Energy Harvesting
Issue Date: 2015
Source: Avvari, P. V., Yang, Y., Liu, P., & Soh, C. K. (2015). Experimental investigation of fatigue in a cantilever energy harvesting beam. Proceedings of SPIE - Smart Materials and Nondestructive Evaluation for Energy Systems 2015, 9439, 94390U-. doi:10.1117/12.2083841
Abstract: Over the last decade, cantilever energy harvesters gained immense popularity owing to the simplicity of the design and piezoelectric energy harvesting (PEH) using the cantilever design has undergone considerable evolution. The major drawback of a vibrating cantilever beam is its vulnerability to fatigue over a period of time. This article brings forth an experimental investigation into the phenomenon of fatigue of a PEH cantilever beam. As there has been very little literature reported in this area, an effort has been made to scrutinize the damage due to fatigue in a linear vibrating cantilever PEH beam consisting of an aluminum substrate with a piezoelectric macro-fiber composite (MFC) patch attached near the root of the beam and a tip mass attached to the beam. The beam was subjected to transverse vibrations and the behavior of the open circuit voltage was recorded with passing time. Moreover, electro-mechanical admittance readings were obtained periodically using the same MFC patch as a Structural health monitoring (SHM) sensor to assess the health of the PEH beam. The results show that with passing time the PEH beam underwent fatigue in both the substrate and MFC, which is observed in a complimentary trend in the voltage and admittance readings. The claim is further supported using the variation of root mean square deviation (RMSD) of the real part of admittance (conductance) readings. Thus, this study concludes that the fatigue issue should be addressed in the design of PEH for long term vibration energy harvesting.
URI: https://hdl.handle.net/10356/88618
http://hdl.handle.net/10220/46954
DOI: 10.1117/12.2083841
Rights: © 2015 Society of Photo-optical Instrumentation Engineers (SPIE). This paper was published in Proceedings of SPIE - Smart Materials and Nondestructive Evaluation for Energy Systems 2015 and is made available as an electronic reprint (preprint) with permission of Society of Photo-optical Instrumentation Engineers (SPIE). The published version is available at: [http://dx.doi.org/10.1117/12.2083841]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Conference Papers

Files in This Item:
File Description SizeFormat 
Experimental investigation of fatigue in a cantilever energy harvesting beam.pdf7.74 MBAdobe PDFThumbnail
View/Open

SCOPUSTM   
Citations

1
checked on Sep 2, 2020

Page view(s)

141
checked on Sep 28, 2020

Download(s)

22
checked on Sep 28, 2020

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.