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RUBEŠ, O. BRABLC, M. HADAŠ, Z.
Originální název
Nonlinear vibration energy harvester: Design and oscillating stability analyses
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
Energy harvesting; Piezoelectric devices; Nonlinear oscillators; Stability; Stability analysis; Limit cycles
Autoři
RUBEŠ, O.; BRABLC, M.; HADAŠ, Z.
Vydáno
15. 6. 2019
Nakladatel
Elsevier
ISSN
0888-3270
Periodikum
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
Číslo
125
Stát
Spojené království Velké Británie a Severního Irska
Strany od
170
Strany do
184
Strany počet
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" }