Design of a motion energy harvester based on compliant mechanisms

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Design of a motion energy harvester based on compliant mechanisms

a bi-stable frequency up-converter generator

Conference Paper (2019)

Author(s)

T. W.A. Blad (TU Delft - Mechanical Engineering)

D. Farhadi Machekposhti (TU Delft - Mechanical Engineering)

J. L. Herder (TU Delft - Mechanical Engineering)

N. Tolou (TU Delft - Mechanical Engineering)

Research Group

Mechatronic Systems Design

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

DOI related publication

https://doi.org/10.1007/978-3-030-20131-9_160 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:7cc68342-7bcd-449d-8236-3de8aba516bc

More Info

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Publication Year

2019

Language

English

Research Group

Mechatronic Systems Design

Pages (from-to)

1619-1626

Publisher

Springer

ISBN (print)

978-3-030-20130-2

ISBN (electronic)

978-3-030-20131-9

Event

15th IFToMM World Congress on Mechanism and Machine Science<br/> (2019-06-30 - 2019-07-04), Krakow, Poland

Downloads counter

201

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).