Publication detail

Verified nonlinear model of piezoelectric energy harvester

RUBEŠ, O. BRABLC, M. HADAŠ, Z.

Original Title

Verified nonlinear model of piezoelectric energy harvester

English Title

Verified nonlinear model of piezoelectric energy harvester

Type

conference paper

Language

en

Original Abstract

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.

English abstract

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.

Keywords

Energy Harvesting

Released

10.10.2018

Publisher

EDP Sciences

Location

Lisbon, Portugal

ISBN

2261-236X

Periodical

MATEC Web of Conferences

Number

211

State

FR

Pages from

1

Pages to

6

Pages count

6

URL

Full text in the Digital Library

Documents

BibTex


@inproceedings{BUT151683,
  author="Ondřej {Rubeš} and Martin {Brablc} and Zdeněk {Hadaš}",
  title="Verified nonlinear model of piezoelectric energy harvester",
  annote="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.",
  address="EDP Sciences",
  booktitle="The 14th International Conference on Vibration Engineering and Technology of Machinery (VETOMAC XIV)",
  chapter="151683",
  doi="10.1051/matecconf/201821105005",
  edition="211",
  howpublished="online",
  institution="EDP Sciences",
  number="211",
  year="2018",
  month="october",
  pages="1--6",
  publisher="EDP Sciences",
  type="conference paper"
}