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Analysis of an electromechanical energy harvester system with geometric and ferroresonant nonlinearities

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Abstract

Enhancing the performance of vibrating energy harvesting systems has been the backbone of several research contributions for the last few years, and it is considered in this paper. Specifically, an electromechanical energy harvester is analyzed, and the effects of geometric and ferroresonant nonlinearities on the electric power are discussed. The geometric nonlinearity includes the small- and high-order terms in Euler internal force while the ferroresonant nonlinearity is included by assuming different levels of saturation in the circuit. Our results reveal regions in the parameter space where nonlinear stiffness is better than linear stiffness and vice versa. Similarly, increasing the saturation parameter can be used to enhance the electric power.

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Acknowledgments

G.T.O.T., E.B.T.T. and P.W. are indebted to the Humboldt foundation (Germany) for support. C.A.K.K. is supported by the US Office of Naval Research under the Grant N00014-08-1-0435. Thanks are due to Mr. Anthony Seman III and Prof. C. Nataraj.

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Authors and Affiliations

  1. Laboratory of Modelling and Simulation in Engineering, Biomimetics and Prototypes and TWAS Research Unit, Faculty of Sciences, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon

    G. T. Oumbé Tékam, E. B. Tchawou Tchuisseu & P. Woafo

  2. Center for Nonlinear Dynamics and Control, Department of Mechanical Engineering, Villanova University, 800 Lancaster Avenue, Villanova, PA , 19085, USA

    C. A. Kitio Kwuimy

Authors
  1. G. T. Oumbé Tékam
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  2. E. B. Tchawou Tchuisseu
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  3. C. A. Kitio Kwuimy
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  4. P. Woafo
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Correspondence to P. Woafo.

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Tékam, G.T.O., Tchuisseu, E.B.T., Kwuimy, C.A.K. et al. Analysis of an electromechanical energy harvester system with geometric and ferroresonant nonlinearities. Nonlinear Dyn 76, 1561–1568 (2014). https://doi.org/10.1007/s11071-013-1228-6

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  • DOI: https://doi.org/10.1007/s11071-013-1228-6

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