Dynamics of Transition Regime in Bi-stable Vibration Energy Harvesters

Handle URI:
http://hdl.handle.net/10754/623289
Title:
Dynamics of Transition Regime in Bi-stable Vibration Energy Harvesters
Authors:
Ibrahim, Alwathiqbellah; Towfighian, Shahrzad; Younis, Mohammad I. ( 0000-0002-9491-1838 )
Abstract:
Vibration energy harvesting can be an effective method for scavenging wasted mechanical energy for use by wireless sensors that have limited battery life. Two major goals in designing energy harvesters are enhancing the power scavenged at low frequency and improving efficiency by increasing the frequency bandwidth. To achieve these goals, we derived a magneto-elastic beam operated at the transition between mono- and bi-stable regions. By improving the mathematical model of the interaction of magnetic force and beam dynamics, we obtained a precise prediction of natural frequencies as the distance of magnets varies. Using the shooting technique for the improved model, we present a fundamental understanding of interesting combined softening and hardening responses that happen at the transition between the two regimes. The transition regime is proposed as the optimal region for energy conversion in terms of frequency bandwidth and output voltage. Using this technique, low frequency vibration energy harvesting at around 17 Hz was possible. The theoretical results were in good agreement with the experimental results. The target application is to power wildlife bio-logging devices from bird flights that have consistent high power density around 16 Hz [1].
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program
Citation:
Ibrahim A, Towfighian S, Younis M (2017) Dynamics of Transition Regime in Bi-stable Vibration Energy Harvesters. Journal of Vibration and Acoustics. Available: http://dx.doi.org/10.1115/1.4036503.
Publisher:
ASME International
Journal:
Journal of Vibration and Acoustics
Issue Date:
20-Apr-2017
DOI:
10.1115/1.4036503
Type:
Article
ISSN:
1048-9002
Additional Links:
http://vibrationacoustics.asmedigitalcollection.asme.org/article.aspx?articleid=2623146
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorIbrahim, Alwathiqbellahen
dc.contributor.authorTowfighian, Shahrzaden
dc.contributor.authorYounis, Mohammad I.en
dc.date.accessioned2017-04-30T10:16:59Z-
dc.date.available2017-04-30T10:16:59Z-
dc.date.issued2017-04-20en
dc.identifier.citationIbrahim A, Towfighian S, Younis M (2017) Dynamics of Transition Regime in Bi-stable Vibration Energy Harvesters. Journal of Vibration and Acoustics. Available: http://dx.doi.org/10.1115/1.4036503.en
dc.identifier.issn1048-9002en
dc.identifier.doi10.1115/1.4036503en
dc.identifier.urihttp://hdl.handle.net/10754/623289-
dc.description.abstractVibration energy harvesting can be an effective method for scavenging wasted mechanical energy for use by wireless sensors that have limited battery life. Two major goals in designing energy harvesters are enhancing the power scavenged at low frequency and improving efficiency by increasing the frequency bandwidth. To achieve these goals, we derived a magneto-elastic beam operated at the transition between mono- and bi-stable regions. By improving the mathematical model of the interaction of magnetic force and beam dynamics, we obtained a precise prediction of natural frequencies as the distance of magnets varies. Using the shooting technique for the improved model, we present a fundamental understanding of interesting combined softening and hardening responses that happen at the transition between the two regimes. The transition regime is proposed as the optimal region for energy conversion in terms of frequency bandwidth and output voltage. Using this technique, low frequency vibration energy harvesting at around 17 Hz was possible. The theoretical results were in good agreement with the experimental results. The target application is to power wildlife bio-logging devices from bird flights that have consistent high power density around 16 Hz [1].en
dc.publisherASME Internationalen
dc.relation.urlhttp://vibrationacoustics.asmedigitalcollection.asme.org/article.aspx?articleid=2623146en
dc.rightsArchived with thanks to Journal of Vibration and Acousticsen
dc.subjectDynamics (Mechanics)en
dc.subjectVibrationen
dc.subjectEnergy harvestingen
dc.subjectFlighten
dc.subjectBattery lifeen
dc.subjectPower densityen
dc.subjectSensorsen
dc.subjectMagnetsen
dc.subjectMagnetic fieldsen
dc.subjectHardeningen
dc.titleDynamics of Transition Regime in Bi-stable Vibration Energy Harvestersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.identifier.journalJournal of Vibration and Acousticsen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Mechanical Engineering Binghamton University 4400 Vestal Parkway E. Binghamton, NY 13902en
dc.contributor.institutionDepartment of Mechanical Engineering State University of New York at Binghamton 4400 Vestal Parkway E. Binghamton, NY 13902en
kaust.authorYounis, Mohammad I.en
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