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Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities

H. Madinei, H. Haddad Khodaparast, M.I. Friswell, S. Adhikari, A.D. Shaw, Michael Friswell, Sondipon Adhikari, Hamed Haddad Khodaparast Orcid Logo, Alexander Shaw Orcid Logo, Hadi Madinei Orcid Logo

Procedia Engineering, Volume: 199, Pages: 3456 - 3461

Swansea University Authors: Michael Friswell, Sondipon Adhikari, Hamed Haddad Khodaparast Orcid Logo, Alexander Shaw Orcid Logo, Hadi Madinei Orcid Logo

Abstract

This paper investigates the use of an electrostatic device to improve the performance of MEMS piezoelectric harvesters in the presence of geometric and structural variabilities due to the manufacturing process. Different types of uncertain parameters including material and geometric uncertainties ha...

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Published in: Procedia Engineering
ISSN: 1877-7058
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa35314
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Different types of uncertain parameters including material and geometric uncertainties have been considered. The variability of these parameters are estimated based on available existing experimental data in the literature. Monte Carlo simulation (MCS) is used for uncertainty propagation and it is shown that the resonance frequencies of the majority of the samples are far away from the excitation frequency and consequently this results in less harvested power. This paper identifies these samples and uses electrostatic devices to improve the performance of the harvester. The proposed device is composed of an unsymmetric arrangement of two electrodes to decrease the resonance frequency of samples through a softening nonlinearity. The unsymmetric arrangement of two electrodes is inevitable and due to geometric variability of the harvester. There are also two arch shape electrodes which can be used to create a hardening effect to increase the resonance frequency of samples which have resonance frequencies smaller than the nominal value.</abstract><type>Journal Article</type><journal>Procedia Engineering</journal><volume>199</volume><paginationStart>3456</paginationStart><paginationEnd>3461</paginationEnd><publisher/><issnPrint>1877-7058</issnPrint><keywords>Uncertainty; MEMS; Energy harvester</keywords><publishedDay>31</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2017</publishedYear><publishedDate>2017-12-31</publishedDate><doi>10.1016/j.proeng.2017.09.451</doi><url/><notes/><college>COLLEGE NANME</college><department>Science and Engineering - Faculty</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>FGSEN</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2020-06-02T12:45:07.1806552</lastEdited><Created>2017-09-18T12:18:18.5190126</Created><path><level id="1">College of Engineering</level><level id="2">Engineering</level></path><authors><author><firstname>H.</firstname><surname>Madinei</surname><order>1</order></author><author><firstname>H. 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spelling 2020-06-02T12:45:07.1806552 v2 35314 2017-09-18 Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 4ea84d67c4e414f5ccbd7593a40f04d3 Sondipon Adhikari Sondipon Adhikari true false f207b17edda9c4c3ea074cbb7555efc1 0000-0002-3721-4980 Hamed Haddad Khodaparast Hamed Haddad Khodaparast true false 10cb5f545bc146fba9a542a1d85f2dea 0000-0002-7521-827X Alexander Shaw Alexander Shaw true false d9a10856ae9e6a71793eab2365cff8b6 0000-0002-3401-1467 Hadi Madinei Hadi Madinei true false 2017-09-18 FGSEN This paper investigates the use of an electrostatic device to improve the performance of MEMS piezoelectric harvesters in the presence of geometric and structural variabilities due to the manufacturing process. Different types of uncertain parameters including material and geometric uncertainties have been considered. The variability of these parameters are estimated based on available existing experimental data in the literature. Monte Carlo simulation (MCS) is used for uncertainty propagation and it is shown that the resonance frequencies of the majority of the samples are far away from the excitation frequency and consequently this results in less harvested power. This paper identifies these samples and uses electrostatic devices to improve the performance of the harvester. The proposed device is composed of an unsymmetric arrangement of two electrodes to decrease the resonance frequency of samples through a softening nonlinearity. The unsymmetric arrangement of two electrodes is inevitable and due to geometric variability of the harvester. There are also two arch shape electrodes which can be used to create a hardening effect to increase the resonance frequency of samples which have resonance frequencies smaller than the nominal value. Journal Article Procedia Engineering 199 3456 3461 1877-7058 Uncertainty; MEMS; Energy harvester 31 12 2017 2017-12-31 10.1016/j.proeng.2017.09.451 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-06-02T12:45:07.1806552 2017-09-18T12:18:18.5190126 College of Engineering Engineering H. Madinei 1 H. Haddad Khodaparast 2 M.I. Friswell 3 S. Adhikari 4 A.D. Shaw 5 Michael Friswell 6 Sondipon Adhikari 7 Hamed Haddad Khodaparast 0000-0002-3721-4980 8 Alexander Shaw 0000-0002-7521-827X 9 Hadi Madinei 0000-0002-3401-1467 10 0035314-18092017122004.pdf madinei2017.pdf 2017-09-18T12:20:04.5070000 Output 798543 application/pdf Version of Record true 2017-09-18T00:00:00.0000000 false eng
title Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities
spellingShingle Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities
Michael Friswell
Sondipon Adhikari
Hamed Haddad Khodaparast
Alexander Shaw
Hadi Madinei
title_short Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities
title_full Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities
title_fullStr Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities
title_full_unstemmed Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities
title_sort Nonlinear MEMS Piezoelectric Harvesters in the presence of geometric and structural variabilities
author_id_str_mv 5894777b8f9c6e64bde3568d68078d40
4ea84d67c4e414f5ccbd7593a40f04d3
f207b17edda9c4c3ea074cbb7555efc1
10cb5f545bc146fba9a542a1d85f2dea
d9a10856ae9e6a71793eab2365cff8b6
author_id_fullname_str_mv 5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
4ea84d67c4e414f5ccbd7593a40f04d3_***_Sondipon Adhikari
f207b17edda9c4c3ea074cbb7555efc1_***_Hamed Haddad Khodaparast
10cb5f545bc146fba9a542a1d85f2dea_***_Alexander Shaw
d9a10856ae9e6a71793eab2365cff8b6_***_Hadi Madinei
author Michael Friswell
Sondipon Adhikari
Hamed Haddad Khodaparast
Alexander Shaw
Hadi Madinei
author2 H. Madinei
H. Haddad Khodaparast
M.I. Friswell
S. Adhikari
A.D. Shaw
Michael Friswell
Sondipon Adhikari
Hamed Haddad Khodaparast
Alexander Shaw
Hadi Madinei
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container_title Procedia Engineering
container_volume 199
container_start_page 3456
publishDate 2017
institution Swansea University
issn 1877-7058
doi_str_mv 10.1016/j.proeng.2017.09.451
college_str College of Engineering
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hierarchy_top_title College of Engineering
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hierarchy_parent_title College of Engineering
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description This paper investigates the use of an electrostatic device to improve the performance of MEMS piezoelectric harvesters in the presence of geometric and structural variabilities due to the manufacturing process. Different types of uncertain parameters including material and geometric uncertainties have been considered. The variability of these parameters are estimated based on available existing experimental data in the literature. Monte Carlo simulation (MCS) is used for uncertainty propagation and it is shown that the resonance frequencies of the majority of the samples are far away from the excitation frequency and consequently this results in less harvested power. This paper identifies these samples and uses electrostatic devices to improve the performance of the harvester. The proposed device is composed of an unsymmetric arrangement of two electrodes to decrease the resonance frequency of samples through a softening nonlinearity. The unsymmetric arrangement of two electrodes is inevitable and due to geometric variability of the harvester. There are also two arch shape electrodes which can be used to create a hardening effect to increase the resonance frequency of samples which have resonance frequencies smaller than the nominal value.
published_date 2017-12-31T04:00:18Z
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