New insights into the performance and optimization of galloping flow energy harvesters

Amin Bibo, Mohammed Daqaq

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper presents a generalized formulation, analysis, and optimization of energy harvesters subjected to galloping and base excitations. The harvester consists of a cantilever beam with a bluff body attached at the free end. A nondimensional lumped-parameter model which accounts for the combined loading and different electro-mechanical transduction mechanisms is presented. The aerodynamic loading is modeled using the quasisteady assumption with polynomial approximation. A nonlinear analysis is carried out and an approximate analytical solution is obtained. A dimensional analysis is performed to identify the important parameters that affect the system's response. It is shown that the response curves of the harvester can be generated in terms of only three dimensionless loading parameters. These curves can serve as a complete design guide for scaling and optimizing the performance of galloping-based harvesters. As a special case study, a harvester subjected to only galloping excitations is analyzed. It is shown that, for a given shape of the bluff body and under quasi-steady flow conditions, the harvester's dimensionless response can be described by a single universal curve irrespective to the geometric, mechanical, and electrical design parameters of the harvester. The universal curve is utilized to obtain the optimal harvesting circuit design parameters, that minimize the cut-in wind speed and maximize the output power, and predict the harvester's total conversion efficiency. KEYWORDS: Energy Harvesting, Galloping, Base Excitations.

    Original languageEnglish (US)
    Title of host publicationASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
    PublisherWeb Portal ASME (American Society of Mechanical Engineers)
    Volume2
    ISBN (Electronic)9780791846155
    DOIs
    StatePublished - Jan 1 2014
    EventASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014 - Newport, United States
    Duration: Sep 8 2014Sep 10 2014

    Other

    OtherASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
    CountryUnited States
    CityNewport
    Period9/8/149/10/14

    Fingerprint

    Harvesters
    Polynomial approximation
    Energy harvesting
    Cantilever beams
    Nonlinear analysis
    Steady flow
    Conversion efficiency
    Aerodynamics
    Networks (circuits)

    ASJC Scopus subject areas

    • Biomaterials
    • Civil and Structural Engineering

    Cite this

    Bibo, A., & Daqaq, M. (2014). New insights into the performance and optimization of galloping flow energy harvesters. In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014 (Vol. 2). Web Portal ASME (American Society of Mechanical Engineers). https://doi.org/10.1115/SMASIS20147453

    New insights into the performance and optimization of galloping flow energy harvesters. / Bibo, Amin; Daqaq, Mohammed.

    ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014. Vol. 2 Web Portal ASME (American Society of Mechanical Engineers), 2014.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Bibo, A & Daqaq, M 2014, New insights into the performance and optimization of galloping flow energy harvesters. in ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014. vol. 2, Web Portal ASME (American Society of Mechanical Engineers), ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014, Newport, United States, 9/8/14. https://doi.org/10.1115/SMASIS20147453
    Bibo A, Daqaq M. New insights into the performance and optimization of galloping flow energy harvesters. In ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014. Vol. 2. Web Portal ASME (American Society of Mechanical Engineers). 2014 https://doi.org/10.1115/SMASIS20147453
    Bibo, Amin ; Daqaq, Mohammed. / New insights into the performance and optimization of galloping flow energy harvesters. ASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014. Vol. 2 Web Portal ASME (American Society of Mechanical Engineers), 2014.
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