Design of a motion energy harvester based on compliant mechanisms: a bi-stable frequency up-converter generator

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Abstract

This work presents a novel design, model and prototype of a motion energy harvester based on bi-stability and frequency up-conversion. The Parametric Frequency up-converter Generator (PFupCG). The PFupCG was designed to harvest energy under conditions where the amplitude of the driving motion is larger than the internal displacement limit. Instead of an impact member, the PFupCG uses a compliant suspension mechanism that combines a bi-stable characteristic with a strong stiffening behavior as a result of geometric effects. This resulted in a prototype of the PFupCG with an internal-to-applied motion amplitude ratio of 0.2. A case study was carried out where the PFupCG was analyzed by simulation and experiment for vibration conditions representative of human walking motion (2Hz, 25 mm).

Original languageEnglish
Title of host publicationAdvances in Mechanisms and Machine Science
Subtitle of host publicationProceedings of the 15th IFToMM World Congress on Mechanism and Machine Science
EditorsTadeusz Uhl
Place of PublicationCham, Switzerland
PublisherSpringer
Pages1619-1626
ISBN (Electronic)978-3-030-20131-9
ISBN (Print)978-3-030-20130-2
DOIs
Publication statusPublished - 2019
Event15th IFToMM World Congress on Mechanism and Machine Science
- Krakow, Poland
Duration: 30 Jun 20194 Jul 2019
Conference number: 15th

Publication series

NameMechanisms and Machine Science
Volume73
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

Conference15th IFToMM World Congress on Mechanism and Machine Science
Abbreviated titleIFToMM
CountryPoland
CityKrakow
Period30/06/194/07/19

Keywords

  • Bi-stability
  • Compliant mechanisms
  • Frequency up-conversion
  • Motion energy harvesting
  • Nonlinear dynamics

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  • Cite this

    Blad, T. W. A., Farhadi Machekposhti, D., Herder, J. L., & Tolou, N. (2019). Design of a motion energy harvester based on compliant mechanisms: a bi-stable frequency up-converter generator. In T. Uhl (Ed.), Advances in Mechanisms and Machine Science: Proceedings of the 15th IFToMM World Congress on Mechanism and Machine Science (pp. 1619-1626). (Mechanisms and Machine Science; Vol. 73). Springer. https://doi.org/10.1007/978-3-030-20131-9_160