Vibration based energy harvesting using piezoelectric material

Author

Fakhzan, M.N. ; Muthalif, Asan G A

Author_Institution

Dept. of Mechatron. Eng., Int. Islamic Univ. Malaysia, Kuala Lumpur, Malaysia

fYear

2011

fDate

17-19 May 2011

Firstpage

1

Lastpage

7

Abstract

Energy harvesting has been around for centuries in the form of windmills, watermills and passive solar power systems. It is not only restricted to the natural resources but it has widen the tapping source to utilise the vibration which happen all around us. In the last decade, beam with piezoceramic patches have been used as a method to harverst energy. An energy harvester system modelled in this paper consist of unimorph piezoelectic cantilever beam with a tip mass. It generates electric current or voltage from the piezoelectric strain effect due to base excitation. This paper is aimed at developing a mathematical model of unimorph cantilever beam with piezoelectric harvester by using Euler - Bernoulli beam theory. The step by step analytical solution and the simulation result are shown in the form of voltage around the natural frequencies.

Keywords

beams (structures); cantilevers; energy harvesting; natural resources; piezoceramics; piezoelectric devices; piezoelectric materials; piezoelectricity; solar power stations; vibrations; Euler-Bernoulli beam theory; base excitation; electric current generation; mathematical model; natural resource; passive solar power system; piezoceramic patch; piezoelectric harvester; piezoelectric material; piezoelectric strain effect; tapping source; tip mass; unimorph piezoelectic cantilever beam; vibration based energy harvesting; voltage generation; watermill; windmill; Equations; Force; Mathematical model; Strain; Stress; Structural beams; Vibrations; Euler — Bernoulli; energy harvester; piezoelectric; unimorph;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics (ICOM), 2011 4th International Conference On

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-61284-435-0

Type

conf

DOI

10.1109/ICOM.2011.5937182

Filename

5937182