TY - JOUR
T1 - A Multidirectional Piezoelectric Vibration Energy Harvester with Direction-Dependent Dual Resonance
AU - Kovenburg, Robert
AU - Gale, Richard
AU - Aksak, Burak
N1 - Funding Information:
Manuscript received May 22, 2020; accepted December 11, 2020. Date of publication December 17, 2020; date of current version April 26, 2021. This work was supported in part by the National Science Foundation under Grant 1810402. (Corresponding author: Robert Kovenburg.) Robert Kovenburg and Richard Gale are with the Electrical and Computer Engineering Department, Texas Tech University, Lubbock, TX 79409 USA (e-mail: robert.koven. . tu.edu; richard.gale. . tu.edu). Burak Aksak is with the Mechanical Engineering Department, Texas Tech University, Lubbock, TX 79409 USA (e-mail: burak.aksak. . tu.edu). This article has supplementary downloadable material available at https://doi.org/10.1109/TUFFC.2020.3045420, provided by the authors. Digital Object Identifier 10.1109/TUFFC.2020.3045420
Publisher Copyright:
© 1986-2012 IEEE.
PY - 2021/5
Y1 - 2021/5
N2 - A multidirectional base-mounted piezoelectric vibration energy harvester with a 2 mm ×2 mm ×20 mm polyurethane resonating beam, an 8.36-g tip mass, and a lead zirconium titanate (PZT) transducer was designed, fabricated, and tested. The harvester was shown to operate in any direction in a 2-D plane and produced as much as 8.2~μ {W across a 50- {M}Ω load under harmonic base excitations with peak acceleration of 0.25 g at an angle of 45°. Experiments showed that, in some directions, the harvester had two resonant frequencies, one at 36.0 Hz and one at 38.5 Hz. Analysis shows that this phenomenon is caused by deviations in the shape of the polyurethane beam from the intended square cross section. This analysis is used to propose a method for designing harvesters with any two desired resonant frequencies. The possibility of using this design method to increase the harvester's bandwidth is discussed.
AB - A multidirectional base-mounted piezoelectric vibration energy harvester with a 2 mm ×2 mm ×20 mm polyurethane resonating beam, an 8.36-g tip mass, and a lead zirconium titanate (PZT) transducer was designed, fabricated, and tested. The harvester was shown to operate in any direction in a 2-D plane and produced as much as 8.2~μ {W across a 50- {M}Ω load under harmonic base excitations with peak acceleration of 0.25 g at an angle of 45°. Experiments showed that, in some directions, the harvester had two resonant frequencies, one at 36.0 Hz and one at 38.5 Hz. Analysis shows that this phenomenon is caused by deviations in the shape of the polyurethane beam from the intended square cross section. This analysis is used to propose a method for designing harvesters with any two desired resonant frequencies. The possibility of using this design method to increase the harvester's bandwidth is discussed.
KW - Energy harvesting
KW - multidirectional
KW - piezoelectric transducers
KW - polymer beam
KW - polyurethane
KW - vibration
UR - http://www.scopus.com/inward/record.url?scp=85098785381&partnerID=8YFLogxK
U2 - 10.1109/TUFFC.2020.3045420
DO - 10.1109/TUFFC.2020.3045420
M3 - Article
C2 - 33332265
AN - SCOPUS:85098785381
SN - 0885-3010
VL - 68
SP - 1844
EP - 1853
JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
IS - 5
M1 - 9296960
ER -