A review of design principles for improved mechanical reliability of cantilever piezoelectric vibration energy harvesters

J.A. Brans, T. W.A. Blad, N. Tolou

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Vibration energy harvesters based on piezoceramics can provide a sustainable source of energy for low-power electronics. The greatest issue preventing these systems from being widely used is their poor reliability. With the aim to maximise their power output, the devices are often operated close the point of yielding, which results in microcracks and fatigue in the piezoceramic layer. This paper offers a comparative review of design principles that aim to improve the reliability of piezoelectric vibration energy harvesters. Three different design principles are investigated with the focus on strain limitation. The results show that strain homogenisation, strain limitation and compressive strains can be effective design principles to increase reliability without sacrificing efficiency.

Original languageEnglish
Title of host publicationProceedings of the IEEE 7th International Conference on Control, Mechatronics and Automation, ICCMA 2019
Place of PublicationPiscataway, NJ, USA
PublisherIEEE
Pages408-415
ISBN (Electronic)978-1-7281-3787-2
DOIs
Publication statusPublished - 2019
Event7th IEEE International Conference on Control, Mechatronics and Automation, ICCMA 2019 - Delft, Netherlands
Duration: 6 Nov 20198 Nov 2019

Conference

Conference7th IEEE International Conference on Control, Mechatronics and Automation, ICCMA 2019
CountryNetherlands
CityDelft
Period6/11/198/11/19

Keywords

  • mechanical reliability
  • MEMS
  • piezoelectric
  • vibration energy harvester

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