Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Analytical and Experimental Comparisons of Electromechanical Vibration Response of a Piezoelectric Bimorph Beam for Power Harvesting

    181174_181174.pdf (802.3Kb)
    Access Status
    Open access
    Authors
    Lumentut, Mikail
    Howard, Ian
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Lumentut, M.F. and Howard, I.M. 2013. Analytical and Experimental Comparisons of Electromechanical Vibration Response of a Piezoelectric Bimorph Beam for Power Harvesting. Mechanical Systems and Signal Processing. 36 (1): pp. 66-86.
    Source Title
    Mechanical Systems and Signal Processing
    DOI
    10.1016/j.ymssp.2011.07.010
    ISSN
    08883270
    School
    Department of Mechanical Engineering
    Remarks

    NOTICE: this is the author’s version of a work that was accepted for publication in Mechanical Systems and Signal Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Mechanical Systems and Signal Processing, Vol. 36, No. 1 (2013). DOI: 10.1016/j.ymssp.2011.07.010

    URI
    http://hdl.handle.net/20.500.11937/29860
    Collection
    • Curtin Research Publications
    Abstract

    Power harvesters that extract energy from vibrating systems via piezoelectric transduction show strong potential for powering smart wireless sensor devices in applications of health condition monitoring of rotating machinery and structures. This paper presents an analytical method for modelling an electromechanical piezoelectric bimorph beam with tip mass under two input base transverse and longitudinal excitations. The Euler–Bernoulli beam equations were used to model the piezoelectric bimorph beam. The polarity-electric field of the piezoelectric element is excited by the strain field caused by base input excitation, resulting in electrical charge. The governing electromechanical dynamic equations were derived analytically using the weak form of the Hamiltonian principle to obtain the constitutive equations. Three constitutive electromechanical dynamic equations based on independent coefficients of virtual displacement vectors were formulated and then further modelled using the normalised Ritz eigenfunction series. The electromechanical formulations include both the series and parallel connections of the piezoelectric bimorph. The multi-mode frequency response functions (FRFs) under varying electrical load resistance were formulated using Laplace transformation for the multi-input mechanical vibrations to provide the multi-output dynamic displacement, velocity, voltage, current and power. The experimental and theoretical validations reduced for the single mode system were shown to provide reasonable predictions. The model results from polar base excitation for off-axis input motions were validated with experimental results showing the change to the electrical power frequency response amplitude as a function of excitation angle, with relevance for practical implementation.

    Related items

    Showing items related by title, author, creator and subject.

    • Mathematical dynamics of electromechanical piezoelectric energy harvesters
      Lumentut, Mikail F. (2011)
      This research investigates vibration energy harvesting by modelling several piezoelectric-based structures. The usage of piezoelectric transduction under input vibration environments can be profitable for obtaining ...
    • The Experimental Validation of an Electromechanical Dynamic Model of a Piezoelectric Bimorph Beam for Prediction of Power Generation
      Lumentut, Mikail; Howard, Ian (2010)
      The extraction of usable electrical power from vibration environments has attracted recent interest from many researchers because of the potential benefit for recharging batteries and for powering wireless sensor nodes. ...
    • An Analytical Method for Vibration Modelling of a Piezoelectric Bimorph Beam for Power Harvesting
      Lumentut, Mikail; Howard, Ian (2009)
      This paper presents the development of a mathematical method for modelling a piezoelectric bimorph beam under two input base-transversal and longitudinal excitations. The piezoelectric bimorph beam model was based on the ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.