A quad-stable piezoelectric energy harvester for enhancing energy harvesting from rotational motion: Theoretical model and experiments

Xutao Mei, Shengxi Zhou, Zhichun Yang, Tsutomu Kaizuka, Kimihiko Nakano

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

Recently, different nonlinear energy harvesters were designed to harvest energy from various rotational motions, which aim to provide power to self-powered wireless sensors. In this paper, a quad-stable piezoelectric energy harvester, comprising of a piezoelectric beam and magnets, is designed to enhance energy harvesting efficiency in rotational motion. In addition, a theoretical model is derived to describe the dynamic performance and the output voltage of the harvester. Furthermore, experimental results demonstrate that the presented harvester in rotational motion exhibits a wider working frequency range compared with that of the bi-stable one. Most importantly, for the rotational speed range of 60 - 420 rpm (1 - 7 HZ), the inter-well oscillation for the harvester can be achieved and corresponding peak voltage is higher than 10 V, which can be used to power wireless sensors. Overall, the quad-stable piezoelectric energy harvester is experimentally verified to be suitable for the low-frequency rotational environment.

Original languageEnglish
Article number012010
JournalIOP Conference Series: Materials Science and Engineering
Volume531
Issue number1
DOIs
StatePublished - 26 Sep 2019
Event2nd International Conference on Modeling in Mechanics and Materials - Suzhou, China
Duration: 29 Mar 201931 Mar 2019

Fingerprint

Dive into the research topics of 'A quad-stable piezoelectric energy harvester for enhancing energy harvesting from rotational motion: Theoretical model and experiments'. Together they form a unique fingerprint.

Cite this