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Optimization of resonator design for vibration-based electromagnetic energy harvester

Seong, Tony Ow Koon and Salleh, Hanim and Nordin, Anis Nurashikin (2014) Optimization of resonator design for vibration-based electromagnetic energy harvester. In: 4th International Conference on Noise, Vibration and Comfort, NVC 2012, 26- 28 November 2012, Kuala Lumpur; Malaysia.

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Abstract

This paper presents an optimization on the resonator, which is one of the main components of electromagnetic energy harvester, using static structural analysis, stress analysis and modal analysis. The electromagnetic energy harvester is a vibration-based energy harvesting technology which has emerged as a solution for powering autonomous sensor nodes to increase their life span. Electromagnetic energy harvester acts as a transducer that converts ambient vibration energy to electrical power. An initial design of the resonator is developed and analyzed using ANSYS software. Static structural analysis and stress analysis have been performed to analyze different resonator designs to produce an optimum resonator model. Maximum static deflection under gravitation force was found to be 104.12 μm. Resonance frequency of the resonator was found to be 261.56Hz by using modal analyses. The selected resonator design was further modified to cater for wide-band frequency application as well as to have better performance. Four resonators with different beam lengths were combined in a model in order to operate at a wider frequency range. Five models were generated and the smallest frequency range is from 272 Hz to 299 Hz by model 5110_5410. The maximum power and minimum power that can be generated for this model is 135 μW and 93.9 μW respectively. The model 3910_4210 which has the highest frequency range generated a maximum power of 437 μW and minimum power of 270 μW at a frequency range of 422 Hz to 466 Hz.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 3239/58503
Uncontrolled Keywords: Electromagnetic; Energy harvesting; Power generation; Resonator Spiral
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: Dr. Anis Nurashikin Nordin
Date Deposited: 25 Sep 2017 06:19
Last Modified: 25 Sep 2017 06:19
URI: http://irep.iium.edu.my/id/eprint/58503

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