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Targeted energy transfer efficiency in a low-dimensional mechanical system with an essentially nonlinear attachment

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Abstract

The rate of the targeted energy transfer, or TET efficiency, is studied based on a two degrees-of-freedom mechanical system with a primary oscillator coupled to a nonlinear attachment. The wavelet transform modulus maxima technique is applied to characterize the phase relationship in the resonance capture of and its dominant frequency–energy relationship. It is shown that (a) the TET efficiency is closely related to the 1:1 resonance capture and (b) higher efficiency is generally attainable by using attachment with stronger nonlinearity.

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Acknowledgments

This research is supported by the DRF grant of Ryerson University and the Natural Science and Engineering Research Council of Canada.

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, Ryerson University, Toronto, ON, Canada

    D. C. Lin & D. C. D. Oguamanam

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  1. D. C. Lin
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  2. D. C. D. Oguamanam
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Correspondence to D. C. Lin.

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Lin, D.C., Oguamanam, D.C.D. Targeted energy transfer efficiency in a low-dimensional mechanical system with an essentially nonlinear attachment. Nonlinear Dyn 82, 971–986 (2015). https://doi.org/10.1007/s11071-015-2211-1

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  • DOI: https://doi.org/10.1007/s11071-015-2211-1

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