eprintid: 3737
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/37/37
datestamp: 2023-11-09 15:52:00
lastmod: 2023-11-09 15:52:00
status_changed: 2023-11-09 15:47:30
type: article
metadata_visibility: show
creators_name: Ashraf, K.
creators_name: Md Khir, M.H.
creators_name: Dennis, J.O.
creators_name: Baharudin, Z.
title: A wideband, frequency up-converting bounded vibration energy harvester for a low-frequency environment
ispublished: pub
keywords: Average power; Elastic limit; Energy Harvester; Environmental vibrations; Higher frequencies; Low-frequency environment; Operating frequency; Peak acceleration; Peak power; Peak-to-peak voltages; RMS errors; Seismic mass; Vibration energies; Voltage waveforms; Wide-band, Energy dissipation; Frequency response, Energy harvesting
note: cited By 75
abstract: This paper presents a bounded vibration energy harvester to effectively harvest energy from a wide band of low-frequency environmental vibrations ranging from 10 to 18 Hz. Rigid mechanical stoppers are used to confine the seismic mass movement within the elastic limits of the spring. Experimental results show the effectiveness of the proposed technique in increasing the efficiency of the energy harvester. When excited at a frequency of 10 Hz with a peak acceleration of 1 g, the harvester responds at a higher frequency of 20 Hz and gives a peak power of 2.68 mW and a peak to peak voltage of 2.62 V across a load of 220 Ω. The average power density of 65.74 μW cm-3 obtained at 10 Hz 1 g excitation monotonically increases with frequency up to 341.86 μW cm-3 at 18 Hz. An analytical model describing the nonlinear dynamics of the proposed harvester is also presented. A simple technique to estimate the energy losses during impact and thereof a method to incorporate these losses in the model are suggested. The presented model not only predicts the experimental voltage waveform and frequency response of the device with good similarity but also predicts the RMS voltage from the harvester for the whole range of operating frequencies with an RMS error of 5.2. © 2013 IOP Publishing Ltd.
date: 2013
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84873334791&doi=10.1088%2f0964-1726%2f22%2f2%2f025018&partnerID=40&md5=7a95fc52d4df661828e19d43a78a4b0a
id_number: 10.1088/0964-1726/22/2/025018
full_text_status: none
publication: Smart Materials and Structures
volume: 22
number: 2
refereed: TRUE
issn: 09641726
citation:   Ashraf, K. and Md Khir, M.H. and Dennis, J.O. and Baharudin, Z.  (2013) A wideband, frequency up-converting bounded vibration energy harvester for a low-frequency environment.  Smart Materials and Structures, 22 (2).   ISSN 09641726