Publication detail

Rolling mass energy harvester for very low frequency of input vibrations

SMILEK, J. HADAŠ, Z. VETIŠKA, J. BEEBY, S.

Original Title

Rolling mass energy harvester for very low frequency of input vibrations

English Title

Rolling mass energy harvester for very low frequency of input vibrations

Type

journal article in Web of Science

Language

en

Original Abstract

This paper presents a novel design of a nonlinear kinetic energy harvester for very low excitation frequencies below 10 Hz. The design is based on a proof mass, rolling in a circular cavity in a Tusi couple configuration. This allows for an unconstrained displacement of the proof mass while maintaining the option of keeping the energy transduction element engaged during the whole cycle and thus reducing the required number of transduction elements. Both the presented model and the fabricated prototype of the device employ electromagnetic induction to harvest energy from low frequency and low magnitude vibrations that are typically associated with human movements. The prototype demonstrated an average power of 5.1 mW from a 1.3 g periodic acceleration waveform at 2.78 Hz. The highest simulated normalized power density reaches up to 230 μW/g2/cm3, but this depends heavily on the excitation conditions.

English abstract

This paper presents a novel design of a nonlinear kinetic energy harvester for very low excitation frequencies below 10 Hz. The design is based on a proof mass, rolling in a circular cavity in a Tusi couple configuration. This allows for an unconstrained displacement of the proof mass while maintaining the option of keeping the energy transduction element engaged during the whole cycle and thus reducing the required number of transduction elements. Both the presented model and the fabricated prototype of the device employ electromagnetic induction to harvest energy from low frequency and low magnitude vibrations that are typically associated with human movements. The prototype demonstrated an average power of 5.1 mW from a 1.3 g periodic acceleration waveform at 2.78 Hz. The highest simulated normalized power density reaches up to 230 μW/g2/cm3, but this depends heavily on the excitation conditions.

Keywords

Electromagnetic induction, Energy harvesting, Human motion, Low frequency, Nonlinear systems, Tusi couple

Released

15.06.2019

Publisher

Elsevier

ISBN

0888-3270

Periodical

MECHANICAL SYSTEMS AND SIGNAL PROCESSING

Number

125

State

GB

Pages from

215

Pages to

228

Pages count

14

URL

Documents

BibTex


@article{BUT148583,
  author="Jan {Smilek} and Zdeněk {Hadaš} and Jan {Vetiška} and Steve {Beeby}",
  title="Rolling mass energy harvester for very low frequency of input vibrations",
  annote="This paper presents a novel design of a nonlinear kinetic energy harvester for very low excitation frequencies below 10 Hz. The design is based on a proof mass, rolling in a circular cavity in a Tusi couple configuration. This allows for an unconstrained displacement of the proof mass while maintaining the option of keeping the energy transduction element engaged during the whole cycle and thus reducing the required number of transduction elements. Both the presented model and the fabricated prototype of the device employ electromagnetic induction to harvest energy from low frequency and low magnitude vibrations that are typically associated with human movements. The prototype demonstrated an average power of 5.1 mW from a 1.3 g periodic acceleration waveform at 2.78 Hz. The highest simulated normalized power density reaches up to 230 μW/g2/cm3, but this depends heavily on the excitation conditions.",
  address="Elsevier",
  chapter="148583",
  doi="10.1016/j.ymssp.2018.05.062",
  howpublished="online",
  institution="Elsevier",
  number="125",
  year="2019",
  month="june",
  pages="215--228",
  publisher="Elsevier",
  type="journal article in Web of Science"
}