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

Chung Ket Thein, Jing Sheng Liu

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)137–148
Number of pages12
JournalEngineering with Computers
Volume33
Issue number1
Early online date23 Jun 2016
DOIs
Publication statusPublished - Jan 2017

Keywords

  • Bimorph cantilever beam
  • Energy harvesting
  • Multi-disciplinary optimisation
  • Piezoelectric
  • Shape and topology optimisation

ASJC Scopus subject areas

  • Engineering(all)
  • Software
  • Computer Science Applications
  • Modelling and Simulation

Fingerprint Dive into the research topics of 'Numerical modeling of shape and topology optimisation of a piezoelectric cantilever beam in an energy-harvesting sensor'. Together they form a unique fingerprint.

  • Cite this