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    Analysis and design of a nonlinear vibration-based energy harvester - a frequency based approach

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    Authors
    Uchenna, Diala
    Simon, Pope
    Lang, Zi-Qiang
    Affiliation
    University of Sheffield
    Issue Date
    2017-08-24
    
    Metadata
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    Abstract
    The benefits of nonlinear damping in increasing the amount of energy (power) harvested by a vibration-based energy harvester (VEH) has been reported where it was revealed that more energy can be harvested using nonlinear cubic damping when compared to a VEH with linear damping. As has been reported, this only occurs when the base excitation on the VEH, at resonance, is less than the maximum base excitation. A maximum harvester base excitation results in a maximum distance the harvester mass can move due to its size and geometric limitations. The present study is concerned with the analysis and design of a VEH using a nonlinear frequency analysis method. This method employs the concept of the output frequency response function (OFRF) to derive an explicit polynomial relationship between the harvested energy (power) and the parameter of the energy harvester of interest, i.e. the nonlinear cubic damping coefficient. Based on the OFRF, a nonlinear damping coefficient can be designed to achieve a range of desired levels of energy harvesting. It is also shown that using the OFRF the harvester throw (the displacement of the mass of the harvester), can be predicted using the designed damping coefficient.
    Citation
    Uchenna, D., Simon, P. and Lang, Z.Q., 2017, July. Analysis and design of a nonlinear vibration-based energy harvester-a frequency based approach'. IEEE International Conference on Advanced Intelligent Mechatronics, Munich, Germany, 3-7 July. New York: IEEE, pp. 1550-1555.
    Publisher
    IEEE
    Journal
    IEEE International Conference on Advanced Intelligent Mechatronics (AIM)
    URI
    http://hdl.handle.net/10545/624681
    DOI
    10.1109/aim.2017.8014239
    Additional Links
    https://ieeexplore.ieee.org/abstract/document/8014239/keywords#keywords
    Type
    Meetings and Proceedings
    Language
    en
    ISSN
    9781509059980
    9781509060009
    ae974a485f413a2113503eed53cd6c53
    10.1109/aim.2017.8014239
    Scopus Count
    Collections
    Department of Electronics, Computing & Maths

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