Publication detail

Nonlinear vibration energy harvester: Design and oscillating stability analyses

RUBEŠ, O. BRABLC, M. HADAŠ, Z.

Original Title

Nonlinear vibration energy harvester: Design and oscillating stability analyses

Type

journal article in Web of Science

Language

English

Original Abstract

Energy harvesting, as an alternative power source, is being widely discussed thanks to emerging technologies like loT, Industry 4.0, or WSNs. This paper deals with a piezoelectric Vibration Energy Harvester (VEH) with auxiliary nonlinear magnetic stiffness. The nonlinear stiffness was designed to increase the average output power of the VEH. A mathematical model is presented to provide a simulation tool for further analysis. A novel method based on stabilization power introduced by a feedback controller to analyse the behaviour of nonlinear VEHs is introduced. The aim of this method is to detect the stability of oscillation amplitudes in relation to the excitation frequency. The result of this method is an amplitude-frequency characteristic and a stability margin around the resonance frequency area. This novel method might be used for an arbitrary nonlinear oscillator, especially for electromagnetic and piezoelectric VEHs. The results were verified by a laboratory experiment on a nonlinear piezoelectric VEH. (C) 2018 Elsevier Ltd. All rights reserved.

Keywords

Energy harvesting; Piezoelectric devices; Nonlinear oscillators; Stability; Stability analysis; Limit cycles

Authors

RUBEŠ, O.; BRABLC, M.; HADAŠ, Z.

Released

15. 6. 2019

Publisher

Elsevier

ISBN

0888-3270

Periodical

MECHANICAL SYSTEMS AND SIGNAL PROCESSING

Number

125

State

United Kingdom of Great Britain and Northern Ireland

Pages from

170

Pages to

184

Pages count

15

URL

https://www.sciencedirect.com/science/article/pii/S0888327018304175?via%3Dihub

BibTex

@article{BUT148992,
  author="Ondřej {Rubeš} and Martin {Brablc} and Zdeněk {Hadaš}",
  title="Nonlinear vibration energy harvester: Design and oscillating stability analyses",
  journal="MECHANICAL SYSTEMS AND SIGNAL PROCESSING",
  year="2019",
  number="125",
  pages="170--184",
  doi="10.1016/j.ymssp.2018.07.016",
  issn="0888-3270",
  url="https://www.sciencedirect.com/science/article/pii/S0888327018304175?via%3Dihub"
}