Numerical optimization of the piezoelectric generators

This paper presents the application of the Pareto-based multicriteria optimization technique to problems of increasing the efficiency of piezoelectric generators (PEGs). The optimization problem was solved for two types of generators: cantilever and stack. For the cantilever generator, the task was...

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Bibliographic Details
Published inJournal of advanced dielectrics Vol. 10; no. 1n02; pp. 2060016 - 2060016-8
Main Authors Chebanenko, V. A., Zhilyaev, I. V., Soloviev, A. N., Cherpakov, A. V., Parinov, I. A.
Format Journal Article
LanguageEnglish
Published Singapore World Scientific Publishing Company 01.02.2020
World Scientific Publishing Co. Pte., Ltd
World Scientific Publishing
Subjects
cantilever
Design optimization
Design parameters
fem
Finite element method
Generators
multiobjective optimization
Multiple criterion
Optimization techniques
Pareto optimization
peg
Piezoelectricity
stack
Transducers
multiobjective optimization
cantilever
stack
PEG
FEM
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Summary:This paper presents the application of the Pareto-based multicriteria optimization technique to problems of increasing the efficiency of piezoelectric generators (PEGs). The optimization problem was solved for two types of generators: cantilever and stack. For the cantilever generator, the task was to optimize the design in such a way as to obtain the maximum output power for a given mechanical excitation. The optimization process was divided into several stages, which significantly reduced the amount of calculations. The task of optimizing the stack type for a given form of mechanical loading consisted in finding the geometric parameters of the generator at which the output voltage and power would be maximum. In the result of solving both problems, sets of geometric design parameters of PEGs were obtained, on the basis of which efficient transducers can be developed for specific operating conditions. It turned out that this technique is more suitable for optimizing the design of cantilever generators than for stack ones in given constraints. The solution of both problems was realized using the finite element method.
ISSN:2010-135X
2010-1368
DOI:10.1142/S2010135X20600164