On the accuracy of lumped parameter model for tapered cantilever piezoelectric energy harvesters with tip mass

Mai R. Ismail, Farag K. Omar, Rafic Ajaj, Mojtaba Ghodsi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The objective of this paper is to investigate the effect of tip mass ratios on the vibration response of the tapered piezoelectric cantilever beams using the lumped parameter model. Finite element analysis is used in this study to compare the finite element model with the lumped parameter model for different taper ratios of piezoelectric cantilever beam subjected to different tip mass ratios. Validation is done by comparing the finite element model with referenced distributed parameter models for 1) rectangular piezoelectric cantilever beam with different tip mass ratios and 2) different taper ratios of piezoelectric cantilever beam in the absence of tip mass. Deflection error percentage is obtained in this work as a key parameter to understand how tip mass can affect the accuracy of the lumped parameter model. It represents the difference between the normalized deflection of lumped parameter model and finite element model for the tapered piezoelectric cantilever. Results showed that when the taper ratio of the piezoelectric cantilever beams increases, the deflection error percentage increases in the absence of tip mass. When tip mass is added, the deflection error between the finite element model and the lumped parameter model decreases drastically leading to more accurate results in the vibration response of the beam.

Original languageEnglish
Title of host publication2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728146409
DOIs
Publication statusPublished - Feb 1 2020
Event2020 Advances in Science and Engineering Technology International Conferences, ASET 2020 - Dubai, United Arab Emirates
Duration: Feb 4 2020Apr 9 2020

Publication series

Name2020 Advances in Science and Engineering Technology International Conferences, ASET 2020

Conference

Conference2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
CountryUnited Arab Emirates
CityDubai
Period2/4/204/9/20

Keywords

  • Distributed parameter model
  • Finite element model
  • Lumped parameter model
  • Tapered piezoelectric cantilever beam
  • Tip mass effect

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Waste Management and Disposal
  • Process Chemistry and Technology
  • Artificial Intelligence
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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