A bistable piezoelectric harvester for wideband mechanical frequency excitation.

Abstract : The developments of autonomous systems as for the self health monitoring, embedded systems are increasingly used in industrial applications. The energy supply is a key point for the development of such systems. Solutions based on battery are life time limited and the power supply trough wires aren't always appropriate and easy to install. The researches on power supply through harvesting systems are increasing in the same way as the autonomous systems. The researches on this fields progress in two ways: the mechanical structure and the electrical circuit. The paper focuses on the mechanical structure of the harvesting systems. A structure based on bistable configuration is presented. Usually, bistable systems are based on magnetic interaction or buckled beams. The proposed solution is abuckled spring-mass (BSM) harvesting solution using amplified piezoelectric actuators (APA®). The description of the architecture and the concept are presented in the first part of this document. In the second part, the presentation of the BSM first prototype based on standard product (APA120S®) is given and described. The second prototype based on APA50μXS® has been designed and modelled. The chirp and band-imited noise excitations are used to evaluate the proposed harvester's performances.
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https://hal.archives-ouvertes.fr/hal-00999429
Contributor : Polytech Annecy-Chambéry Symme <>
Submitted on : Tuesday, June 3, 2014 - 3:32:21 PM
Last modification on : Thursday, February 21, 2019 - 5:30:17 PM

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  • HAL Id : hal-00999429, version 1

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N. Bencheikh, A. Pages, T. Forissier, T. Porchez, A. Kras, et al.. A bistable piezoelectric harvester for wideband mechanical frequency excitation.. ACTUATOR, Jun 2014, BREMEN, Germany. pp.PP.51. ⟨hal-00999429⟩

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