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Engineering with Computers
Published in: Engineering with Computers 1/2017

23-06-2016 | Original Article

Numerical modeling of shape and topology optimisation of a piezoelectric cantilever beam in an energy-harvesting sensor

Authors: Chung Ket Thein, Jing-Sheng Liu

Published in: Engineering with Computers | Issue 1/2017

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Abstract

Piezoelectric materials are excellent transducers for converting mechanical energy from the environment for use as electrical energy. The conversion of mechanical energy to electrical energy is a key component in the development of self-powered devices, especially enabling technology for wireless sensor networks. This paper proposes an alternative method for predicting the power output of a bimorph cantilever beam using a finite-element method for both static and dynamic frequency analyses. A novel approach is presented for optimising the cantilever beam, by which the power density is maximised and the structural volume is minimised simultaneously. A two-stage optimisation is performed, i.e., a shape optimisation and then a “topology” hole opening optimisation.
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Metadata
Title
Numerical modeling of shape and topology optimisation of a piezoelectric cantilever beam in an energy-harvesting sensor
Authors
Chung Ket Thein
Jing-Sheng Liu
Publication date
23-06-2016
Publisher
Springer London
Published in
Engineering with Computers / Issue 1/2017
Print ISSN: 0177-0667
Electronic ISSN: 1435-5663
DOI
https://doi.org/10.1007/s00366-016-0460-3

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