Simulation and Optimization of Piezoelectric Cantilever Configurations for Energy Harvesting with Multi-modal Vibrations

Weiqiang Mo, Yubin Lin, Shiqing Huang, Zuolu Wang, Fengshou Gu, Bo Liang, Hongjun Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The power generation capacity of piezoelectric cantilever energy harvester is limited by the narrow bandwidth of beam resonances. To overcome this problem, vibration modal analysis of piezoelectric cantilevers was carried out with different configurations that can be realized in a vertical system. Combining with the operating characteristics of the rotating machine, a scheme was proposed. In this scheme, the bending and torsional vibration modes were combined to constitute the piezoelectric cantilever energy harvester with wideband characteristics. The coupling of the bending mode and the twisting mode was implemented, by the segmented piezoelectric plate structure and the distributive mass arrangements. Finite element analysis was done for those configurations, and the simulation results show that the natural frequency of first bending mode is 11.26 Hz and the natural frequency of twisting mode can be reduced to 20.08 Hz. The amplitude of the output voltage from single piezoelectric plate, could be up to as high as 2.4 V. The optimized energy harvester has the broadband power generation capacity to be more suitable for a wide range of rotor speeds.

Original languageEnglish
Title of host publicationProceedings of TEPEN 2022
Subtitle of host publicationEfficiency and Performance Engineering Network
EditorsHao Zhang, Yongjian Ji, Tongtong Liu, Xiuquan Sun, Andrew David Ball
PublisherSpringer, Cham
Pages766-775
Number of pages10
Volume129
ISBN (Electronic)9783031261930
ISBN (Print)9783031261923, 9783031261954
DOIs
Publication statusPublished - 4 Mar 2023
EventInternational Conference of The Efficiency and Performance Engineering Network 2022 - Baotou, China
Duration: 18 Aug 202221 Aug 2022
https://tepen.net/
https://tepen.net/conference/tepen2022/

Publication series

NameMechanisms and Machine Science
PublisherSpringer
Volume129 MMS
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992

Conference

ConferenceInternational Conference of The Efficiency and Performance Engineering Network 2022
Abbreviated titleTEPEN 2022
Country/TerritoryChina
CityBaotou
Period18/08/2221/08/22
Internet address

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