TY - GEN
T1 - On the accuracy of lumped parameter model for tapered cantilever piezoelectric energy harvesters with tip mass
AU - Ismail, Mai R.
AU - Omar, Farag K.
AU - Ajaj, Rafic
AU - Ghodsi, Mojtaba
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/1
Y1 - 2020/1
N2 - 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.
AB - 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.
KW - Distributed parameter model
KW - Finite element model
KW - Lumped parameter model
KW - Tapered piezoelectric cantilever beam
KW - Tip mass effect
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UR - https://www.mendeley.com/catalogue/648c6bec-7359-3e9e-9c9b-bb9b9d8ba38e/
U2 - 10.1109/ASET48392.2020.9118273
DO - 10.1109/ASET48392.2020.9118273
M3 - Conference contribution
AN - SCOPUS:85087455573
SN - 9781728146409
T3 - 2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
BT - 2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 Advances in Science and Engineering Technology International Conferences, ASET 2020
Y2 - 4 February 2020 through 9 April 2020
ER -
