Abstract
The paper presents a numerical and experimental analysis of an electromagnetic energy harvester. The concept is based on the oscillation of a permanent cylindrical magnet in a coil wrapped on the tube. A new model of variable friction due to magnetic interactions is proposed and analysed. A comparison between different friction coefficients is made for selected cases. Results demonstrate that friction causes decrease in recovered power, as well as affects stability response.
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Acknowledgements
This research was financed in the framework of the project: “Theoretical-experimental analysis possibility of electromechanical coupling shaping in energy harvesting systems” no. DEC-2019/35/B/ST8/01068, funded by the National Science Centre, Poland.
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Kecik, K., Mitura, A. Effect of variable friction on electromagnetic harvester dynamics. Eur. Phys. J. Spec. Top. 231, 1433–1441 (2022). https://doi.org/10.1140/epjs/s11734-022-00493-x
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DOI: https://doi.org/10.1140/epjs/s11734-022-00493-x