Abstract
This paper describes modeling and experimental testing of a magneto-mechanical energy scavenger. The examined device is a vibration-driven linear generator, where the translator is constituted by a permanent magnet and the stator by two axial coils. Two fixed permanent magnets act on the translator as a nonlinear hardening spring.
Analytical, numerical and empirical models of the elastic force, due to the interaction between moving and fixed magnets, are described and discussed.
Two experimental test rigs are presented to validate the analytical and numerical results: the first one is a tunable rig to measure the repulsive force between magnets with different dimensions, volume ratios and configurations; the second one is a parametric energy scavenger which aims to validate linearized dynamic properties, non linear magnetic effects and dissipative phenomena with a simplified tunable electric load coupled to it.
Experimental tests are performed to validate the models by varying source characteristics, moving and fixed magnet sizes, stroke and clearance. Simulations and tests are also performed to verify the scalability of the device and to relate the output power with the size of the moving magnet.
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Paradiso JA, Starner T (2005) Energy scavenging for mobile and wireless electronics. IEEE Pervasive Comput 4(1):18–27. doi:10.1109/MPRV.2005.9
Priya S, Inman DJ (2009) Energy harvesting technologies. Springer, New York. ISBN 978-0-387-76463-4
Ergen SC, Sangiovanni-Vincintelli A, Sun X, Tebano R, Alalusi S, Audisio G, Sabatini M (2009) The tire as an intelligent sensor. IEEE Trans Comput-Aided Des Integr Circuits Syst 28(7):941–955. doi:10.1109/tcad.2009.2022879
Bonisoli E, Canova A, Freschi F, Moos S, Repetto M, Tornincasa S (2010) Dynamic simulation of an electromechanical energy scavenging device. IEEE Trans Magn 46(8):2856–2859. doi:10.1109/TMAG.2010.2044156
Tornincasa S, Bonisoli E, Di Monaco F, Moos S, Repetto M, Freschi F (2011) Nonlinear dynamics of an electro-mechanical energy scavenger. In: Modal analysis topics, vol 3, 6. Springer, New York, pp 339–349. doi:10.1007/978-1-4419-9299-4_30. ISBN 978-1-4419-9299-4
Mann BP, Sims ND (2009) Energy harvesting from the nonlinear oscillations of magnetic levitation. J Sound Vib 319(1–2):515–530. doi:10.1016/J.JSV.2008.06.011
Bonisoli E, Vigliani A (2003) Static behaviour of magneto-elastic forces. In: 16th AIMETA congress of theoretical and applied mechanics, Ferrara, 9–12 Sept 2003
Nayfeh AH, Mook DT (1979) Nonlinear oscillations. Wiley, New York. ISBN 978-0-471-12142-8
Acknowledgements
This work was performed under a research project with Pirelli Tyre S.p.A. The authors would like to thank Dr. Giorgio Audisio, Dr. Federico Mancosu, and Dr. Massimo Brusarosco from Pirelli Tyre S.p.A. for their enthusiasm and driving force in the project.
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© 2012 The Society for Experimental Mechanics, Inc.
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Bonisoli, E., Rosso, C., Di Monaco, F. (2012). Nonlinear Testing and Models Comparison of Magneto-Mechanical Energy Scavengers. In: Allemang, R., De Clerck, J., Niezrecki, C., Blough, J. (eds) Topics in Modal Analysis II, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-2419-2_7
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DOI: https://doi.org/10.1007/978-1-4614-2419-2_7
Publisher Name: Springer, New York, NY
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