TY - GEN
T1 - Optimized piezoelectric energy harvesters for performance robust operation in periodic vibration environments
AU - Cai, Wen
AU - Harne, Ryan L.
N1 - Funding Information:
This research is supported by the National Science Foundation under Award No. 1661572. The authors are grateful to additional hardware support from Midé Technology.
Publisher Copyright:
© 2019 Copyright SPIE.
PY - 2019
Y1 - 2019
N2 - Energy harvesters with wide frequency range, long lifetime, and high output power are preferred to serve as power supplies for wireless devices. Motivated to guide the design of a robust energy harvesting platform, an analytical model based on the Euler-Bernoulli beam theory for a laminated beam is first presented to predict the nonlinear response of the system when subjected to harmonic base acceleration and tunable magnetic forces. Following experimental validation, a multi-objective optimization based on a genetic algorithm considers how to improve the frequency range of high performance, decrease peak strain level, and maximize output power by manipulating the design of the nonlinear energy harvester. The optimization results indicate that a slightly monostable configuration is superior when taking all three aspects into consideration.
AB - Energy harvesters with wide frequency range, long lifetime, and high output power are preferred to serve as power supplies for wireless devices. Motivated to guide the design of a robust energy harvesting platform, an analytical model based on the Euler-Bernoulli beam theory for a laminated beam is first presented to predict the nonlinear response of the system when subjected to harmonic base acceleration and tunable magnetic forces. Following experimental validation, a multi-objective optimization based on a genetic algorithm considers how to improve the frequency range of high performance, decrease peak strain level, and maximize output power by manipulating the design of the nonlinear energy harvester. The optimization results indicate that a slightly monostable configuration is superior when taking all three aspects into consideration.
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U2 - 10.1117/12.2514041
DO - 10.1117/12.2514041
M3 - Conference contribution
AN - SCOPUS:85069767635
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Active and Passive Smart Structures and Integrated Systems XII
A2 - Erturk, Alper
PB - SPIE
T2 - Active and Passive Smart Structures and Integrated Systems XII 2019
Y2 - 4 March 2019 through 7 March 2019
ER -