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Snap-through twinkling energy generation through frequency up-conversion

A novel experimental energy harvester is investigated for its energy harvesting capability by frequency up-conversion using snap-through structures. In particular, a single-degree-of-freedom (SDOF) experimental energy harvester model is built using a snap-through nonlinear element. The snap-through...

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Published in:Journal of sound and vibration 2017-07, Vol.399, p.216-227
Main Authors: Panigrahi, Smruti R., Bernard, Brian P., Feeny, Brian F., Mann, Brian P., Diaz, Alejandro R.
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Language:English
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description A novel experimental energy harvester is investigated for its energy harvesting capability by frequency up-conversion using snap-through structures. In particular, a single-degree-of-freedom (SDOF) experimental energy harvester model is built using a snap-through nonlinear element. The snap-through dynamics is facilitated by the experimental setup of a twinkling energy generator (TEG) consisting of linear springs and attracting cylindrical bar magnets. A cylindrical coil of enamel-coated magnet wire is used as the energy generator. The governing equations are formulated mathematically and solved numerically for a direct comparison with the experimental results. The experimental TEG and the numerical simulation results show 25-fold frequency up-conversion and the power harvesting capacity of the SDOF TEG.
doi_str_mv 10.1016/j.jsv.2017.03.031
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subjects Alternative energy
Computer simulation
Energy harvesting
Frequency distribution
Frequency up-conversion
Low-frequency vibration
Magnets
Mathematical models
Negative stiffness
Oscillators
Renewable energy
Snap-through oscillators
Springs (elastic)
Upconversion
Vibration energy harvesting
title Snap-through twinkling energy generation through frequency up-conversion
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