Design, modeling and testing of a vibration absorption device with energy harvesting based on force amplifier and piezoelectric stack

Xigang Chen, Yangmin Li (Corresponding Author)

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

This article presents the design, modeling and testing of a novel vibration absorption device with energy harvest based on compliant mechanism and piezoelectric stack. The vibration absorption device can absorb external vibration with high bandwidth through a hybrid compliant mechanism. Meanwhile, the mechanical energy of the vibration can be converted into electrical energy by piezoelectric stack. The hybrid compliant mechanism contains a bridge type force amplifier and a lever type force amplifier both based on flexure hinges. The analytical model is established for predicting the force amplification ratio and the output electricity power. Also, the dimensions of the device are optimized. A prototype is fabricated and tested with input vibration at different frequencies. The experimental results are well identical with the analytical model. In addition, the proposed vibration absorption device has better performance by comparing with existing designs.

Original languageEnglish
Article number115305
JournalEnergy Conversion and Management
Volume255
DOIs
Publication statusPublished - 1 Mar 2022

Keywords

  • Energy harvesting
  • Flexure mechanism design
  • Piezoelectric stack
  • Two-stage force amplifier
  • Vibration absorption device

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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