A comprehensive review on mechanical amplifier structures in piezoelectric energy harvesters
Journal
Mechanics of Advanced Materials and Structures
Date Issued
2023-01-01
Author(s)
Long, Su Xian
Khoo, Shin Yee
Ong, Zhi Chao
Soong, Ming Foong
Prasath, Nithiyanandam
Noroozi, Siamak
Abstract
This paper presents a comprehensive review of structural optimization for the piezoelectric energy harvesters by summarizing the characteristics, working principles, advantages, disadvantages, performance, evaluation factors, and potential applications of each amplifier structure. This includes the cantilever, flexure structure, combined structure, multistage structure, and derivative designs such as compound and hinge designs. Examples and optimization method of structural design which utilizes the compressive mode, 33-mode configuration, and stacking design of piezoelectric material is provided. The power output, amplification ratio, and the applied mechanism theory of each structure are then compared and discussed to ease the benchmarking process for future research.
Subjects
Cantilever | Cymbal | Flexcompressive | flextensional | multistage | Rhombus
Type
journal article