Detail publikace

Verified nonlinear model of piezoelectric energy harvester

RUBEŠ, O. BRABLC, M. HADAŠ, Z.

Anglický název

Verified nonlinear model of piezoelectric energy harvester

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

Originální abstrakt

Energy harvesting is an important topic today. Complex monitoring systems with many nodes need energy sources and vibration energy harvesters (VEHs) could be one type of them. Mathematical model of the VEH is necessary instrument to estimate possible harvested power. This paper deals with piezoelectric VEH in setting as cantilever beam with tip mass. Traditional linear model of this type of VEH is simple, however, it represents the VEH only in one operating point and in another one (another amplitude of excitation vibrations) it could return wrong results. The nonlinear model of VEH is introduced in this paper with its parameters estimation. The nonlinear model is compared with linear model and experiment to demonstrate difference between them in amplitude frequency characteristics. Finally, the average harvested power from harmonic vibrations is measured experimentally and compared with prediction from linear and nonlinear model.

Anglický abstrakt

Energy harvesting is an important topic today. Complex monitoring systems with many nodes need energy sources and vibration energy harvesters (VEHs) could be one type of them. Mathematical model of the VEH is necessary instrument to estimate possible harvested power. This paper deals with piezoelectric VEH in setting as cantilever beam with tip mass. Traditional linear model of this type of VEH is simple, however, it represents the VEH only in one operating point and in another one (another amplitude of excitation vibrations) it could return wrong results. The nonlinear model of VEH is introduced in this paper with its parameters estimation. The nonlinear model is compared with linear model and experiment to demonstrate difference between them in amplitude frequency characteristics. Finally, the average harvested power from harmonic vibrations is measured experimentally and compared with prediction from linear and nonlinear model.

Klíčová slova anglicky

Energy Harvesting

Vydáno

10.10.2018

Nakladatel

EDP Sciences

Místo

Lisbon, Portugal

ISSN

2261-236X

Kniha

The 14th International Conference on Vibration Engineering and Technology of Machinery (VETOMAC XIV)

Číslo

211

Číslo edice

1

Strany od–do

1–6

Počet stran

6

BIBTEX


@inproceedings{BUT151683,
  author="Ondřej {Rubeš} and Martin {Brablc} and Jan {Smilek} and Zdeněk {Hadaš},
  title="Verified nonlinear model of piezoelectric energy harvester",
  booktitle="The 14th International Conference on Vibration Engineering and Technology of Machinery (VETOMAC XIV)",
  year="2018",
  number="211",
  month="October",
  pages="1--6",
  publisher="EDP Sciences",
  address="Lisbon, Portugal",
  issn="2261-236X"
}