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Analysis of pendulums coupled by torsional springs for energy harvesting

P V Malaji, Suresh Doddi, Michael Friswell, Sondipon Adhikari Orcid Logo

MATEC Web of Conferences, Volume: 211, Start page: 05008

Swansea University Authors: Michael Friswell, Sondipon Adhikari Orcid Logo

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DOI (Published version): 10.1051/matecconf/201821105008

Abstract

Harvesting energy from ambient sources has been a recent topic of interest. A typical linear harvester is effective only near resonance, limiting its frequency bandwidth. In order to increase the efficiency and bandwidth of harvesters, various strategies have been proposed. Using multiple harvesters...

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Published in: MATEC Web of Conferences
ISSN: 2261-236X
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa45899
first_indexed 2018-11-12T14:24:00Z
last_indexed 2019-01-14T14:00:13Z
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spelling 2019-01-14T11:44:26.6539563 v2 45899 2018-11-12 Analysis of pendulums coupled by torsional springs for energy harvesting 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 4ea84d67c4e414f5ccbd7593a40f04d3 0000-0003-4181-3457 Sondipon Adhikari Sondipon Adhikari true false 2018-11-12 Harvesting energy from ambient sources has been a recent topic of interest. A typical linear harvester is effective only near resonance, limiting its frequency bandwidth. In order to increase the efficiency and bandwidth of harvesters, various strategies have been proposed. Using multiple harvesters in a single device can harvest enough power over wider frequency band. In the present work, the effect of torsional coupling of the harvesters for low frequency vibration energy harvesting is investigated. Two pendulums with electromagnetic induction as the energy conversion mechanism is proposed. The performance of the device is studied theoretically and numerically. Cubic polynomials are used to model the pendulum nonlinearity. Fundamental harmonic oscillation are assumed to obtain the analytical solution. The effect of torsional coupling and pendulum length on the power harvested are reported. Journal Article MATEC Web of Conferences 211 05008 2261-236X 31 12 2018 2018-12-31 10.1051/matecconf/201821105008 COLLEGE NANME COLLEGE CODE Swansea University 2019-01-14T11:44:26.6539563 2018-11-12T12:50:12.3620045 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised P V Malaji 1 Suresh Doddi 2 Michael Friswell 3 Sondipon Adhikari 0000-0003-4181-3457 4 0045899-12112018125155.pdf malaji2018.pdf 2018-11-12T12:51:55.8600000 Output 235170 application/pdf Version of Record true 2018-11-12T00:00:00.0000000 true eng
title Analysis of pendulums coupled by torsional springs for energy harvesting
spellingShingle Analysis of pendulums coupled by torsional springs for energy harvesting
Michael Friswell
Sondipon Adhikari
title_short Analysis of pendulums coupled by torsional springs for energy harvesting
title_full Analysis of pendulums coupled by torsional springs for energy harvesting
title_fullStr Analysis of pendulums coupled by torsional springs for energy harvesting
title_full_unstemmed Analysis of pendulums coupled by torsional springs for energy harvesting
title_sort Analysis of pendulums coupled by torsional springs for energy harvesting
author_id_str_mv 5894777b8f9c6e64bde3568d68078d40
4ea84d67c4e414f5ccbd7593a40f04d3
author_id_fullname_str_mv 5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
4ea84d67c4e414f5ccbd7593a40f04d3_***_Sondipon Adhikari
author Michael Friswell
Sondipon Adhikari
author2 P V Malaji
Suresh Doddi
Michael Friswell
Sondipon Adhikari
format Journal article
container_title MATEC Web of Conferences
container_volume 211
container_start_page 05008
publishDate 2018
institution Swansea University
issn 2261-236X
doi_str_mv 10.1051/matecconf/201821105008
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Harvesting energy from ambient sources has been a recent topic of interest. A typical linear harvester is effective only near resonance, limiting its frequency bandwidth. In order to increase the efficiency and bandwidth of harvesters, various strategies have been proposed. Using multiple harvesters in a single device can harvest enough power over wider frequency band. In the present work, the effect of torsional coupling of the harvesters for low frequency vibration energy harvesting is investigated. Two pendulums with electromagnetic induction as the energy conversion mechanism is proposed. The performance of the device is studied theoretically and numerically. Cubic polynomials are used to model the pendulum nonlinearity. Fundamental harmonic oscillation are assumed to obtain the analytical solution. The effect of torsional coupling and pendulum length on the power harvested are reported.
published_date 2018-12-31T07:34:55Z
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score 11.047674

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