Segmented Cantilever and Array Configurations for Wider Frequency Band and Higher Power Generation in Piezoelectric Vibration Energy Harvester-Reference-Cited by-同舟云学术

Segmented Cantilever and Array Configurations for Wider Frequency Band and Higher Power Generation in Piezoelectric Vibration Energy Harvester

Published:2021-08-04 Issue: Volume:2021 Page:1-10
ISSN:1530-8677
Container-title:Wireless Communications and Mobile Computing
language:en
Short-container-title:Wireless Communications and Mobile Computing

Author:

Zou Aicheng¹²^ORCID,Li Jiefeng¹,Han Xingguo²,Wang Qunying²

Affiliation:

1. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

2. College of Mechanical Engineering, Guilin University of Aerospace Technology, Guilin 541004, China

Abstract

This letter reports a piezoelectric vibration energy harvester which energy conversion efficiency is significantly improved by arraying piezoelectric sheets on cantilever beams, and the operation frequency band is widened by applying two-segment cantilever beams. A prototype is developed and tested. In this case, two group piezoelectric arrays are combined on the cantilever beams with the optimum load resistance. The total output power remains above 6.54 mW within the operation frequency band ranges from 27.5 Hz to 37.5 Hz when the generator is under an acceleration of 0.7 g and reaches two power peaks: 20.5 mW at 29.2 Hz and 12.95 mW at 35.4 Hz.

Funder

State Key Laboratory of Mechanics and Control of Mechanical Structures

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Information Systems

Link

http://downloads.hindawi.com/journals/wcmc/2021/4204440.pdf

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