This paper presents a piezoelectric harvester prototype with liquid tip mass for frequency tuning. The use of a liquid mass makes it possible to limit mechanical stress inside the harvester, with a resonance frequency reduction comparable to a solid mass. A mathematical model of the water sloshing in the tip container, which makes it possible to predict natural frequencies of a harvester with liquid mass, is presented. Such analytical model can be used for the harvester tuning to low-frequency vibration sources. Mathematical predictions are in good agreement with experimental results obtained from the harvester prototype. As an example of practical application is considered: energy harvesting from bicycle vibrations.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Tuning of Vibration Energy Harvesters by Means of Liquid Masses


    Contributors:


    Publication date :

    2021-05-05


    Size :

    349558 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Deep Learning-Based Optimization of Piezoelectric Vibration Energy Harvesters

    Menon, Abhilash M. / Kopparthi, Tanmayee R. / Omprakash, Pravan et al. | AIAA | 2022


    Deep Learning-Based Optimization of Piezoelectric Vibration Energy Harvesters

    Menon, Abhilash M. / Kopparthi, Tanmayee R. / Omprakash, Pravan et al. | TIBKAT | 2022


    Closed-form analysis of Switchless Electrostatic Vibration Energy Harvesters

    Balato, Marco / Costanzo, Luigi / Vitelli, Massimo | IEEE | 2015


    Deep Learning-Based Optimization of Piezoelectric Vibration Energy Harvesters

    Menon, Abhilash M. / Kopparthi, Tanmayee R. / Omprakash, Pravan et al. | TIBKAT | 2022